Fumihiko Ikegami
@fikgm.bsky.social
Earth Science Watcher in Japan. Master of Geology and None. I am myself, not employers.
Pinned
Dear US citizens, we can't wait another 3 years for you to fix your government.
January 3, 2026 at 3:22 PM
Dear US citizens, we can't wait another 3 years for you to fix your government.
The download page of USGS's slab2 dataset looks gone.
www.usgs.gov/data/slab2-a...
Here is the alternative download link. I downloaded it in May.
drive.google.com/file/d/1lrP1...
www.usgs.gov/data/slab2-a...
Here is the alternative download link. I downloaded it in May.
drive.google.com/file/d/1lrP1...
December 30, 2025 at 5:48 AM
The download page of USGS's slab2 dataset looks gone.
www.usgs.gov/data/slab2-a...
Here is the alternative download link. I downloaded it in May.
drive.google.com/file/d/1lrP1...
www.usgs.gov/data/slab2-a...
Here is the alternative download link. I downloaded it in May.
drive.google.com/file/d/1lrP1...
JAMSTEC R/V Kaimei is livestreaming from Mariana's NW Rota-1 volcano right now...
www.youtube.com/live/hIb3QTz...
www.youtube.com/live/hIb3QTz...
December 26, 2025 at 5:44 AM
JAMSTEC R/V Kaimei is livestreaming from Mariana's NW Rota-1 volcano right now...
www.youtube.com/live/hIb3QTz...
www.youtube.com/live/hIb3QTz...
Geological Survey of Japan has released the raw drone videos of the eruption of Shinmoedake back in July.
storage.repository.aist.go.jp/1104/index.h...
DJI_20250703140503 has the footage of the most intense part of the eruption.
storage.repository.aist.go.jp/1104/index.h...
DJI_20250703140503 has the footage of the most intense part of the eruption.
December 22, 2025 at 10:10 AM
Geological Survey of Japan has released the raw drone videos of the eruption of Shinmoedake back in July.
storage.repository.aist.go.jp/1104/index.h...
DJI_20250703140503 has the footage of the most intense part of the eruption.
storage.repository.aist.go.jp/1104/index.h...
DJI_20250703140503 has the footage of the most intense part of the eruption.
Igneous mafic-silicic something. Don't ask me what was happened here in 120 Ma tonalite. Shikanoshima, Fukuoka, Japan.
December 21, 2025 at 8:04 AM
Igneous mafic-silicic something. Don't ask me what was happened here in 120 Ma tonalite. Shikanoshima, Fukuoka, Japan.
I am pretty impressed to Gemini 3. It is the first AI I am scared of. We dont probably need human researchers to find a scientific question anymore. Only lab rats and field explorers will survive this major extinction. Good luck.
November 21, 2025 at 6:55 AM
I am pretty impressed to Gemini 3. It is the first AI I am scared of. We dont probably need human researchers to find a scientific question anymore. Only lab rats and field explorers will survive this major extinction. Good luck.
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😎