Fumihiko Ikegami
@fikgm.bsky.social
Earth Science Watcher in Japan. Master of Geology and None. I am myself, not employers.
Pinned
The underwater seismometer network is so great, as evidenced from yesterday's EQ off-Tohoku.
Reposting unofficial visualization by x.com/kotoho76/sta...
Reposting unofficial visualization by x.com/kotoho76/sta...
November 10, 2025 at 6:56 AM
The underwater seismometer network is so great, as evidenced from yesterday's EQ off-Tohoku.
Reposting unofficial visualization by x.com/kotoho76/sta...
Reposting unofficial visualization by x.com/kotoho76/sta...
Japan Coast Guard found no significant bathymetric change after the earthquake swarm in Tokara Islands. The mystery deepens...
www.kaiho.mlit.go.jp/info/kouhou/...
www.kaiho.mlit.go.jp/info/kouhou/...
トカラ列島周辺海域にて地震後初の海底地形調査を実施～地震活動の原因解明に資する基礎情報としての活用が期待～｜海上保安庁
発表日 令和7年9月8日 概要 海上保安庁海洋情報部は、活発な地震活動が発生し...
www.kaiho.mlit.go.jp
September 13, 2025 at 9:22 AM
Japan Coast Guard found no significant bathymetric change after the earthquake swarm in Tokara Islands. The mystery deepens...
www.kaiho.mlit.go.jp/info/kouhou/...
www.kaiho.mlit.go.jp/info/kouhou/...
Updates from JMA regarding the eruption of Iwojima (Ogasawara Io-to).
www.data.jma.go.jp/vois/data/re...
www.data.jma.go.jp/vois/data/re...
September 8, 2025 at 5:03 AM
Updates from JMA regarding the eruption of Iwojima (Ogasawara Io-to).
www.data.jma.go.jp/vois/data/re...
www.data.jma.go.jp/vois/data/re...
JMA reported Iwojima (Ogasawara Io-to) is erupting.
Image from Himawari-9 satellite. weather-models.info/latest/himaw...
Image from Himawari-9 satellite. weather-models.info/latest/himaw...
September 2, 2025 at 5:02 AM
JMA reported Iwojima (Ogasawara Io-to) is erupting.
Image from Himawari-9 satellite. weather-models.info/latest/himaw...
Image from Himawari-9 satellite. weather-models.info/latest/himaw...
Today is the National Disaster Prevention Day in Japan, commemorating the 1923 Great Kanto Earthquake which devastated Tokyo and Yokohama.
Here is the ground displacements map after the EQ, which was of course made without GPS or InSAR...
www.gsi.go.jp/kohokocho/ko...
Here is the ground displacements map after the EQ, which was of course made without GPS or InSAR...
www.gsi.go.jp/kohokocho/ko...
September 1, 2025 at 1:15 AM
Today is the National Disaster Prevention Day in Japan, commemorating the 1923 Great Kanto Earthquake which devastated Tokyo and Yokohama.
Here is the ground displacements map after the EQ, which was of course made without GPS or InSAR...
www.gsi.go.jp/kohokocho/ko...
Here is the ground displacements map after the EQ, which was of course made without GPS or InSAR...
www.gsi.go.jp/kohokocho/ko...
Hey Nano-Banana, please super-resolution and enhance this low-resolution satellite image. Make it like the imagery from the state-of-the-art 10-cm resolution satellite. Strictly keep the composition and viewing angle of the original image. Add immence details to the original blurry image. 😱😱
August 29, 2025 at 5:52 AM
Hey Nano-Banana, please super-resolution and enhance this low-resolution satellite image. Make it like the imagery from the state-of-the-art 10-cm resolution satellite. Strictly keep the composition and viewing angle of the original image. Add immence details to the original blurry image. 😱😱
Automatic Colorization has reached this level now (Qwen Image Edit i2i model). Sakurajima 1914, Bezymiannny, 1956, Quizapu 1932. It is increasingly important to keep the original data.
August 28, 2025 at 12:57 AM
Automatic Colorization has reached this level now (Qwen Image Edit i2i model). Sakurajima 1914, Bezymiannny, 1956, Quizapu 1932. It is increasingly important to keep the original data.
The strong eruption of #Shinmoedake this morning, from JMA and municipal government cameras. Reddish growing has been observed for the first time this year.
August 28, 2025 at 12:51 AM
The strong eruption of #Shinmoedake this morning, from JMA and municipal government cameras. Reddish growing has been observed for the first time this year.
How much of the ocean has been mapped? 2025 Edition. (GEBCO 2025 SID + SRTM15Plus v2.7 TID)
August 24, 2025 at 9:34 AM
How much of the ocean has been mapped? 2025 Edition. (GEBCO 2025 SID + SRTM15Plus v2.7 TID)
I have just learned that there is a temple in Myammer with a floating pumice displayed as the holy object...
www.sukima.com/38_myanmar20...
I need to visit there some day after the peace is back.
www.sukima.com/38_myanmar20...
I need to visit there some day after the peace is back.
チャットンシーボ僧院
（ミャンマーモン州モーラミャイン） 水に浮かぶ軽石がシンボルの僧院。
www.sukima.com
August 24, 2025 at 2:18 AM
I have just learned that there is a temple in Myammer with a floating pumice displayed as the holy object...
www.sukima.com/38_myanmar20...
I need to visit there some day after the peace is back.
www.sukima.com/38_myanmar20...
I need to visit there some day after the peace is back.
Osarizawa Mine was one of the largest copper mine in Japan. It has been accepting visitors after its closure in 1950's, but no more from 2026. The memories of Japan as World's top mining country is fading away.
August 22, 2025 at 2:02 PM
Osarizawa Mine was one of the largest copper mine in Japan. It has been accepting visitors after its closure in 1950's, but no more from 2026. The memories of Japan as World's top mining country is fading away.
After a bit of search about insects repellant for a fieldwork, I found it safe to say Icaridin (EU) / Picaridin (US) is much better than the old DEET.
journals.sagepub.com/doi/full/10....
journals.sagepub.com/doi/full/10....
August 17, 2025 at 12:02 PM
After a bit of search about insects repellant for a fieldwork, I found it safe to say Icaridin (EU) / Picaridin (US) is much better than the old DEET.
journals.sagepub.com/doi/full/10....
journals.sagepub.com/doi/full/10....
Was in the field yesterday. Found two cute mountaineers.
August 10, 2025 at 1:17 AM
Was in the field yesterday. Found two cute mountaineers.
JMA mascots: Harerun and Volken
August 8, 2025 at 4:27 AM
JMA mascots: Harerun and Volken
August 6, 2025 at 3:12 PM
342 years ago OTD OTT, the climax of the 1783 Eruption of Asama Volcano, Japan. The eruptive products of prolonged plinian eruption had collapsed from the northern flank of the volcano, and formed disasterous Kambara pyroclastic flow and debris avalanche.
gbank.gsj.jp/volcano/esdb...
gbank.gsj.jp/volcano/esdb...
August 5, 2025 at 1:36 AM
342 years ago OTD OTT, the climax of the 1783 Eruption of Asama Volcano, Japan. The eruptive products of prolonged plinian eruption had collapsed from the northern flank of the volcano, and formed disasterous Kambara pyroclastic flow and debris avalanche.
gbank.gsj.jp/volcano/esdb...
gbank.gsj.jp/volcano/esdb...
Reportedly Klyuchevskoy Volcano this morning.
Yu.V. Demyanchuk, IViS FEB RAS
From KVERT Telegram.
t.me/ivsfebras_kv...
Yu.V. Demyanchuk, IViS FEB RAS
From KVERT Telegram.
t.me/ivsfebras_kv...
August 4, 2025 at 11:59 PM
Reportedly Klyuchevskoy Volcano this morning.
Yu.V. Demyanchuk, IViS FEB RAS
From KVERT Telegram.
t.me/ivsfebras_kv...
Yu.V. Demyanchuk, IViS FEB RAS
From KVERT Telegram.
t.me/ivsfebras_kv...
One of my favorite Cambrian monsters since the childhood😍
UPDATE! My retro Opabinia was too retro so new image to help spread the good word about opabinia feets (well, fleshy leg thingies)! Thanks @jopabinia.bsky.social for the latest in opabinia research! #SciArt #AugArthroAwe
August 4, 2025 at 11:56 PM
One of my favorite Cambrian monsters since the childhood😍
A MASSIVE M3.0 earthquake in New York?? Oh, no. Prayers sent from a plate convergent margin😎
Breaking News: A 3.0-magnitude earthquake struck in northern New Jersey, and was felt across the state and in New York.
Earthquake Jolts New Jersey and New York City
The epicenter of the 3.0-magnitude quake, which struck around 10:20 p.m. on Saturday, was near Teterboro Airport in New Jersey.
nyti.ms
August 4, 2025 at 11:52 PM
A MASSIVE M3.0 earthquake in New York?? Oh, no. Prayers sent from a plate convergent margin😎
Thanks to the authority in NZ, we have English version of the picture!
www.geonet.org.nz/news/7KdKuPl...
www.geonet.org.nz/news/7KdKuPl...
August 1, 2025 at 1:56 AM
Thanks to the authority in NZ, we have English version of the picture!
www.geonet.org.nz/news/7KdKuPl...
www.geonet.org.nz/news/7KdKuPl...
Yes. Drown to death in tsunami is not the ordinally drowning. In most cases, it is an agonal death with uncountable traumas. Never, never caught by tsunami.
On X, Masaki Nobushiro posts a recurring (and useful) drawing about how people wrongly think a 1m tsunami is a cresting wave when it's actually a wall of water filled with dangerous and deadly debris that's strong enough to sweep up a car.
#tsunami
#tsunami
July 30, 2025 at 11:00 AM
Yes. Drown to death in tsunami is not the ordinally drowning. In most cases, it is an agonal death with uncountable traumas. Never, never caught by tsunami.
I really hope people in Hawaii take the warnings from the officials seriously...
July 30, 2025 at 4:45 AM
I really hope people in Hawaii take the warnings from the officials seriously...
Disregard the news about the beached whales in Japan. They were already there yesterday.
July 30, 2025 at 3:58 AM
Disregard the news about the beached whales in Japan. They were already there yesterday.
The tide gauge at Hanasaki (NE tip of Hokkaido, Japan) right now.
www1.kaiho.mlit.go.jp/TIDE/gauge/g...
www1.kaiho.mlit.go.jp/TIDE/gauge/g...
July 30, 2025 at 1:57 AM
The tide gauge at Hanasaki (NE tip of Hokkaido, Japan) right now.
www1.kaiho.mlit.go.jp/TIDE/gauge/g...
www1.kaiho.mlit.go.jp/TIDE/gauge/g...
My mother often recalled the tsunami of 1960 Chile Earthquake (M9.5) in Japan. She was a teenager at that time. She witnessed the river reversely flowing and woods and waters blocking lowlands. The flooding persisted for the entire day. The distant EQ do cause a significant damage through tsunami.
July 30, 2025 at 1:15 AM
My mother often recalled the tsunami of 1960 Chile Earthquake (M9.5) in Japan. She was a teenager at that time. She witnessed the river reversely flowing and woods and waters blocking lowlands. The flooding persisted for the entire day. The distant EQ do cause a significant damage through tsunami.