Japan Meteorological Agency.
independent organ of the Ministry of Land, Infrastructure, Transport and Tourism of Japan
- Reports this week
- 3
- Active events
- 3
- Connections
- 143
What's happening
Active this week
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CoreWeave stock slumped on Nasdaq, AI concerns pressured Nvidia stocks, and Japan issued a quake alert.Some support2 reports
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The operational status of the Earthquake Early Warning system in Japan, managed by the JMA, utilizes advanced seismic alert technology.Some support1 report1 development inside
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The Japan Meteorological Agency issued an earthquake early warning for Hakodate following a quake near Russia.Some support1 report
Earlier this month
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Hurricane Rachel sends dangerous waves to Mexico and crosses the international date line, with data reported by the Japan Meteorological Agency.Some support1 report
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Heavy rainfall caused landslide warnings in Niijima. Agency issued alerts for Chiba and Saitama prefectures.Some support2 reports1 development inside
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Record rainfall in Miura led to a landslide mudflow in the Chiba region.Some support1 report
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The Japan Meteorological Agency is issuing severe weather warnings for a major city in Japan, which is located within the country.Well supported7 reports1 development inside
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A storm is currently being tracked near Yokosuka, which is located 27 miles southwest of Tokyo, with advisories issued by the JTWC and JMA.Some support1 report
One to three months ago
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The Japan Meteorological Agency monitors volcanic activity in an island country and warns of ash and ejected rocks.Some support3 reports
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The Japan Meteorological Agency issued warnings for record-breaking short-term rainfall affecting Gifu and Aichi prefectures.Well supported4 reports2 developments inside
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Landslides impacted Mt. Fuji access points and the JMA issued severe weather warnings in Shizuoka Prefecture.Some support2 reports
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JMA reported highest hourly rainfall on September 8, 2026, leading to flood warnings for the Shonai River, high school closures in Chiba, and a submerged car found in Iwaki.Some support5 reports
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The Japan Meteorological Agency is tracking rising temperatures in Hokkaido.Some support1 report
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Typhoon Krovanh is predicted to approach Okinawa Prefecture, with the Japan Meteorological Agency monitoring its pressure and wind speeds.Some support2 reports
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Fukui Prefecture and Katsuyama were alerted by the Japan Meteorological Agency regarding record rainfall and flooding, leading to the issuance of the highest emergency warnings for the area.Some support3 reports1 development inside
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Earthquake tremors were felt in Tokyo and Ibaraki Prefecture, causing service suspensions and differing magnitude assessments.Some support1 report
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The Japan Meteorological Agency issued heavy rain warnings for affected areas in Noto.Some support3 reports
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Flooding and Level 5 heavy rain emergency warnings were issued in Toyama Prefecture, affecting Takaoka and Imizu.Well supported7 reports
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The Japan Meteorological Agency is monitoring extreme weather conditions in Chiba Prefecture.Some support3 reports
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Typhoon impacts multiple southwestern islands, prompting JMA landslide warnings for Amami.Some support5 reports
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A volcanic eruption in Vanuatu has prompted concerns about potential tsunami impacts, which the JMA is currently assessing.Some support1 report
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ANA Holdings is following JMA typhoon forecasts, with flights operating between Okinawa and Fujian.Some support1 report
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Severe weather caused major flooding and disruptions in Chiba Prefecture on August 14, 2026, prompting highest rain warnings.Well supported11 reports1 development inside
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The Japan Meteorological Agency is monitoring volcanic activity in Kumamoto.Well supported4 reports
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The Japan Meteorological Agency reported an earthquake struck the island of Kyushu on August 12, 2026.Some support1 report
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Air Canada is monitoring weather data from the Japan Meteorological Agency regarding operational impacts at Naha Airport.Some support2 reports
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The Japan Meteorological Agency issued seasonal outlooks regarding weather patterns for the Tokyo area on August 9, 2026.Some support1 report
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JMA tracked Dolphin near Okinawa.Some support1 report1 development inside
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The Japan Meteorological Agency monitored a magnitude 7.1 earthquake in the Kumamoto region, with local hospitals operating in the affected area.Some support1 report
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The Japan Meteorological Agency has been warning of potential future seismic activity in Kumamoto Prefecture since July 1, 2026.Some support4 reports1 development inside
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The Japan Meteorological Agency reported an earthquake occurred in Japan.Some support1 report
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An earthquake struck Kumamoto prefecture on July 28, 2026.Well supported174 reports10 developments inside
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The Japan Meteorological Agency is monitoring extreme heat and weather conditions in Kumamoto Prefecture.Some support10 reports
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Developing AI to improve typhoon forecasting accuracy.Some support1 report
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An earthquake struck near Uki in Kumamoto Prefecture on July 28, 2026, leading to tsunami warnings issued by the JMA.Well supported8 reports1 development inside
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JMA issued tsunami warnings following seismic activity on July 28, 2026.Some support1 report
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NHK and the Japan Meteorological Agency are operating within the country's borders.Some support2 reports
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The Japan Meteorological Agency provided data on July 28, 2026, which was subsequently cited by Kyodo News.Well supported13 reports
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Volcanic eruption activity at Mount Tokachidake is being monitored by the Japan Meteorological Agency, with local disaster warnings issued.Some support1 report
Gone quiet
No new reports in 90+ days-
ETH Zurich and Kyoto University collaborated on seismicity research, utilizing data provided by the Japan Meteorological Agency.Some support1 report
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The Japan Meteorological Agency is monitoring seismic activity in Okinawa Prefecture.Some support1 report
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An earthquake struck off the coast of Iwate Prefecture on June 29, causing building damage in the region.Some support1 report
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Tateyama is located in Chiba Prefecture, Japan. The Japan Meteorological Agency is the national weather service of Japan.Some support1 report
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Typhoons have caused landslides in Yamaguchi Prefecture as of June 27, 2026.Some support1 report
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Okinawa Prefecture is warned of strong winds and heavy rainfall, prompting a level 5 emergency alert.Some support1 report
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JMA identifies Japan as highly earthquake-prone while PHIVOLCS reports on seismic challenges in the Philippines.Some support1 report2 developments inside
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Multiple earthquakes struck various prefectures in Japan on June 25, 2026, causing injuries and prompting JMA warnings.Well supported14 reports1 development inside
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JMA provides official data on seismic events while the Prime Minister leads the government response to a crisis.Well supported89 reports
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A mild earthquake mildly shook Tokyo, with the Japan Meteorological Agency reporting the quake occurred off the Iwate coast.Well supported30 reports2 developments inside
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An earthquake struck off the northern coast of Japan on June 10, 2026, prompting the Japan Meteorological Agency to issue advisories regarding the area, which includes a spent fuel reprocessing plant.Some support1 report
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A major earthquake occurred off the coast of Iwate Prefecture on January 1, 2026, prompting the Japan Meteorological Agency to assess the event and leading the government response.Some support1 report
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An earthquake occurred off Iwate on June 1, 2026, with strongest shaking reported in Hashikami.Well supported3 reports
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The Japan Meteorological Agency serves as the national weather warning authority.Well supported7 reports2 developments inside
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The Japan Meteorological Agency observed heavy downpour in Nagasaki Prefecture and issued a rainband alert for the Satsuma area.Well supported3 reports
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Ongoing eruptive activity at Sakurajima is being monitored by the Japan Meteorological Agency and is affecting air traffic.Some support2 reports
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An earthquake struck in Ibaraki prefecture, and the Japan Meteorological Agency is monitoring seismic activity in the country.Some support1 report
No events began in the chosen period. Widen it, or reset.
Explainers that pass through Japan Meteorological Agency
Japan Meteorological Agency is a step on the way to someone elseAround Japan Meteorological Agency this week
News at the entities that move Japan Meteorological Agency most-
Kyushu Shared contextMADIS deployment and training activities are taking place on Ishigaki Island and in the Kyushu region.Moves Japan Meteorological Agency
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Kumamoto OperationalA sister city relationship was established between Kumamoto and Tamana on October 14, 2026.Moves Japan Meteorological Agency
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Okinawa OperationalKyodo News reported a detention incident that occurred in Okinawa on October 14, 2026.Moves Japan Meteorological Agency
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El Nino OperationalEl Nino could affect agricultural output across Africa while an IMF official discusses the continent's economic outlook.Moves Japan Meteorological Agency
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Kuril Islands Shared contextA Japanese journalist working for Hokkaido Shimbun was arrested in the Sakhalin region for suspected spying.Moves Japan Meteorological Agency
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Sanae Takaichi StructuralCNBC reports on Japanese economic policy discussions involving Monex Group, noting the impact on financial markets.Moves Japan Meteorological Agency
Connections
The 40 strongest of 143, analyzed from the reporting. The bars show how strongly a change on one side reaches the other.-
Kyushu Shared context
The JMA monitors, tracks, and issues official warnings regarding weather and seismic events occurring in the Kyushu region.
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Chiba Prefecture Operational
The Japan Meteorological Agency actively monitors Chiba Prefecture and issues official disaster warnings and alerts based on weather and seismic events.
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Kumamoto Operational
JMA actively monitors seismic and weather activity in Kumamoto and issues warnings and advisories based on events in the region.
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Chiba Shared context
The Japan Meteorological Agency monitors weather and seismic activity in Chiba and issues official warnings regarding extreme conditions.
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Kumamoto Prefecture Shared context
The Japan Meteorological Agency monitors, tracks, and issues advisories regarding seismic activity and weather conditions in Kumamoto Prefecture.
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Okinawa Operational
JMA actively tracks and issues weather forecasts and alerts that directly impact the operational environment of Okinawa.
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Tokyo Operational
The Japan Meteorological Agency actively monitors and issues weather warnings and advisories for the Tokyo metropolitan area.
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Kagoshima Prefecture Structural
The Japan Meteorological Agency provides official weather alerts and forecasts for the region of Kagoshima Prefecture.
Show all 40 connections
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NHK Mentioned together
NHK reports and disseminates official warnings, advisories, and weather data provided by the Japan Meteorological Agency.
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Okinawa Prefecture Structural
JMA issues official warnings and forecasts regarding weather and seismic activity relevant to the geographical area of Okinawa Prefecture.
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Shin-Yokohama Operational
JMA warnings directly cause operational disruptions, such as train suspensions, near Shin-Yokohama.
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Kyodo News Structural
Kyodo News relies on the Japan Meteorological Agency for seismic and meteorological data to report on events.
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ANA Holdings Structural
ANA Holdings relies on the Japan Meteorological Agency for typhoon risk forecasts to inform its operations.
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Niijima Structural
The Japan Meteorological Agency issues critical weather warnings that impact the safety and operations of Niijima.
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Ishikawa Operational
The Japan Meteorological Agency issues official heavy rain warnings and advisories relevant to the area of Ishikawa.
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Fukui Prefecture Operational
The Japan Meteorological Agency issues high-level emergency and weather warnings to Fukui Prefecture regarding severe weather events.
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Saitama Structural
The Japan Meteorological Agency issues official warnings regarding typhoons and seasonal rain fronts that directly impact the location of Saitama.
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Nakanoto Operational
The Japan Meteorological Agency issues weather warnings and advisories specific to the location Nakanoto.
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Guam Structural
JMA provides critical tropical cyclone forecasting guidance utilized by Guam authorities.
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Air Canada Structural
Air Canada relies on the Japan Meteorological Agency for critical weather data necessary for operational planning and safety.
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Ariake Operational
The Japan Meteorological Agency issues advisories and tsunami warnings specifically for the Ariake Sea area.
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Ebita Structural
Ebita functions as the head of JMA's observation division, establishing a hierarchical relationship.
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Hamaoka Structural
The Japan Meteorological Agency provides disaster advisories and warnings for the location of Hamaoka.
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El Nino Operational
The Japan Meteorological Agency actively monitors and declares the strength and state of the El Nino climate phenomenon.
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Kagoshima Operational
The Japan Meteorological Agency actively tracks and issues severe weather alerts for Kagoshima.
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Yatsushiro Operational
The Japan Meteorological Agency actively monitors activity and issues official tsunami advisories for the coastal region of Yatsushiro.
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Toyama Prefecture Operational
The Japan Meteorological Agency issues official weather warnings and advisories that apply directly to the geographical area of Toyama Prefecture.
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Kuril Islands Shared context
The Japan Meteorological Agency tracks and reports on seismic activity and quakes occurring near the Kuril Islands.
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Yokosuka Structural
JMA provides critical storm data to the location of Yokosuka, establishing a functional dependency.
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Aomori Prefecture Shared context
The Japan Meteorological Agency monitors seismic activity and issues warnings relevant to Aomori Prefecture.
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Sanae Takaichi Structural
Sanae Takaichi, as a government leader, oversees the Japan Meteorological Agency, which provides data influencing political responses.
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Fukuoka Structural
The Japan Meteorological Agency issues warnings regarding potential heavy rain and disasters that affect the Fukuoka area.
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Fukushima Prefecture Operational
JMA issues official warnings regarding geological hazards in the Fukushima Prefecture.
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Narita International Airport Structural
The airport's operations are subject to disruptions caused by weather events monitored by the meteorological agency.
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Katsuyama Shared context
The Japan Meteorological Agency monitors conditions in Katsuyama and issues alerts regarding record rainfall and flooding.
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Kamifurano Structural
Alerts issued by the JMA regarding Tokachidake affect the operational status of local tourism infrastructure in Kamifurano.
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National Meteorological Centre Operational
The two agencies are actively coordinating and exchanging information regarding the tracking and warnings for a specific storm path.
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Sakai Operational
JMA issues operational warnings regarding potential dam discharge that affect Sakai's operations.
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Shizuoka Prefecture Structural
JMA monitors weather patterns and issues warnings relevant to the geographical area of Shizuoka Prefecture.
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Toyama Shared context
The Japan Meteorological Agency issues weather warnings and advisories relevant to the location of Toyama.
History
Events by the month they beganOctober 2026
3 events- CoreWeave stock slumped on Nasdaq, AI concerns pressured Nvidia stocks, and Japan issued a quake alert.
- The Japan Meteorological Agency issued an earthquake early warning for Hakodate following a quake near Russia.
- Hurricane Rachel sends dangerous waves to Mexico and crosses the international date line, with data reported by the Japan Meteorological Agency.
September 2026
10 events- Heavy rainfall caused landslide warnings in Niijima. Agency issued alerts for Chiba and Saitama prefectures.
- Record rainfall in Miura led to a landslide mudflow in the Chiba region.
- The Japan Meteorological Agency is issuing severe weather warnings for a major city in Japan, which is located within the country.
- A storm is currently being tracked near Yokosuka, which is located 27 miles southwest of Tokyo, with advisories issued by the JTWC and JMA.
- The Japan Meteorological Agency monitors volcanic activity in an island country and warns of ash and ejected rocks.
- The Japan Meteorological Agency issued warnings for record-breaking short-term rainfall affecting Gifu and Aichi prefectures.
- Landslides impacted Mt. Fuji access points and the JMA issued severe weather warnings in Shizuoka Prefecture.
- JMA reported highest hourly rainfall on September 8, 2026, leading to flood warnings for the Shonai River, high school closures in Chiba, and a submerged car found in Iwaki.
- The Japan Meteorological Agency is tracking rising temperatures in Hokkaido.
- Typhoon Krovanh is predicted to approach Okinawa Prefecture, with the Japan Meteorological Agency monitoring its pressure and wind speeds.
August 2026
17 events- Fukui Prefecture and Katsuyama were alerted by the Japan Meteorological Agency regarding record rainfall and flooding, leading to the issuance of the highest emergency warnings for the area.
- Earthquake tremors were felt in Tokyo and Ibaraki Prefecture, causing service suspensions and differing magnitude assessments.
- The Japan Meteorological Agency issued heavy rain warnings for affected areas in Noto.
- Flooding and Level 5 heavy rain emergency warnings were issued in Toyama Prefecture, affecting Takaoka and Imizu.
- The Japan Meteorological Agency is monitoring extreme weather conditions in Chiba Prefecture.
- Typhoon impacts multiple southwestern islands, prompting JMA landslide warnings for Amami.
- A volcanic eruption in Vanuatu has prompted concerns about potential tsunami impacts, which the JMA is currently assessing.
- ANA Holdings is following JMA typhoon forecasts, with flights operating between Okinawa and Fujian.
- Severe weather caused major flooding and disruptions in Chiba Prefecture on August 14, 2026, prompting highest rain warnings.
- The Japan Meteorological Agency is monitoring volcanic activity in Kumamoto.
- The Japan Meteorological Agency reported an earthquake struck the island of Kyushu on August 12, 2026.
- Air Canada is monitoring weather data from the Japan Meteorological Agency regarding operational impacts at Naha Airport.
- The Japan Meteorological Agency issued seasonal outlooks regarding weather patterns for the Tokyo area on August 9, 2026.
- JMA tracked Dolphin near Okinawa.
- The Japan Meteorological Agency monitored a magnitude 7.1 earthquake in the Kumamoto region, with local hospitals operating in the affected area.
- The Japan Meteorological Agency reported an earthquake occurred in Japan.
- The Japan Meteorological Agency is monitoring extreme heat and weather conditions in Kumamoto Prefecture.
Show 2 earlier months
July 2026
10 events- The Japan Meteorological Agency has been warning of potential future seismic activity in Kumamoto Prefecture since July 1, 2026.
- An earthquake struck Kumamoto prefecture on July 28, 2026.
- Developing AI to improve typhoon forecasting accuracy.
- An earthquake struck near Uki in Kumamoto Prefecture on July 28, 2026, leading to tsunami warnings issued by the JMA.
- JMA issued tsunami warnings following seismic activity on July 28, 2026.
- NHK and the Japan Meteorological Agency are operating within the country's borders.
- The Japan Meteorological Agency provided data on July 28, 2026, which was subsequently cited by Kyodo News.
- Volcanic eruption activity at Mount Tokachidake is being monitored by the Japan Meteorological Agency, with local disaster warnings issued.
- ETH Zurich and Kyoto University collaborated on seismicity research, utilizing data provided by the Japan Meteorological Agency.
- The Japan Meteorological Agency is monitoring seismic activity in Okinawa Prefecture.
June 2026
16 events- The operational status of the Earthquake Early Warning system in Japan, managed by the JMA, utilizes advanced seismic alert technology.
- An earthquake struck off the coast of Iwate Prefecture on June 29, causing building damage in the region.
- Tateyama is located in Chiba Prefecture, Japan. The Japan Meteorological Agency is the national weather service of Japan.
- Typhoons have caused landslides in Yamaguchi Prefecture as of June 27, 2026.
- Okinawa Prefecture is warned of strong winds and heavy rainfall, prompting a level 5 emergency alert.
- JMA identifies Japan as highly earthquake-prone while PHIVOLCS reports on seismic challenges in the Philippines.
- Multiple earthquakes struck various prefectures in Japan on June 25, 2026, causing injuries and prompting JMA warnings.
- JMA provides official data on seismic events while the Prime Minister leads the government response to a crisis.
- A mild earthquake mildly shook Tokyo, with the Japan Meteorological Agency reporting the quake occurred off the Iwate coast.
- An earthquake struck off the northern coast of Japan on June 10, 2026, prompting the Japan Meteorological Agency to issue advisories regarding the area, which includes a spent fuel reprocessing plant.
- A major earthquake occurred off the coast of Iwate Prefecture on January 1, 2026, prompting the Japan Meteorological Agency to assess the event and leading the government response.
- An earthquake occurred off Iwate on June 1, 2026, with strongest shaking reported in Hashikami.
- The Japan Meteorological Agency serves as the national weather warning authority.
- The Japan Meteorological Agency observed heavy downpour in Nagasaki Prefecture and issued a rainband alert for the Satsuma area.
- Ongoing eruptive activity at Sakurajima is being monitored by the Japan Meteorological Agency and is affecting air traffic.
- An earthquake struck in Ibaraki prefecture, and the Japan Meteorological Agency is monitoring seismic activity in the country.