@ai6yr Though an M7.6 quake is big for its effects on land, it's on the small end for causing tsunamis. When we see news like this, keep in mind a rule of thumb for estimating #tsunami risk from undersea #quake magnitude:
M7+ -> localized tsunami possible
M8+ -> regional tsunami likely
M9+ -> ocean-crossing tsunami expected
#geology

In the hours following the recent earthquake off the north-eastern coast of Japan, Google's #AI "displayed outdated information and wrong answers, including the wrong magnitude of the earthquake."

"False information must not be displayed -- even once -- in the field of disaster response, where lives are at stake"

#Japan #Earthquake #Tsunami #NoAI

A magnitude 6.7 earthquake triggered a tsunami advisory for the coasts of Aomori, Iwate and Miyagi prefectures on Friday. https://www.japantimes.co.jp/news/2025/12/12/japan/aomori-quake-tsunami-advisory/?utm_medium=Social&utm_source=mastodon #japan #aomori #earthquakes #tsunami #disasters

In the hours following the recent earthquake off the north-eastern coast of Japan, Google's #AI "displayed outdated information and wrong answers, including the wrong magnitude of the earthquake."

"False information must not be displayed -- even once -- in the field of disaster response, where lives are at stake"

#Japan #Earthquake #Tsunami #NoAI

#Japan warns of 3-metre high #tsunami after magnitude 7.6 #earthquake -Reuters

Dec 8, 2025 9:48 AM EST

#TOKYO, Dec 8 (Reuters) - A tsunami as high as three metres (10 feet) could hit Japan's northeastern coast after an earthquake with an estimated magnitude of 7.6 occurred offshore on Monday, JMA said

The tsunami warning was issued for the prefectures of #Hokkaido , #Aomori and #Iwate , after the quake jolted a large part of Japan's north & east at 11:15 PM (1415 GMT)

https://www.reuters.com/business/environment/japan-warns-3-metre-high-tsunami-after-magnitude-72-earthquake-2025-12-08/

A fire and at least 30 cases of injuries have been reported so far following a magnitude 7.5 earthquake that occurred off the eastern coast of Aomori Prefecture on Monday night. https://www.japantimes.co.jp/news/2025/12/09/japan/aomori-quake-injuries/?utm_medium=Social&utm_source=mastodon #japan #earthquakes #aomori #hokkaido #tsunami #meteorologicalagency

@ai6yr Though an M7.6 quake is big for its effects on land, it's on the small end for causing tsunamis. When we see news like this, keep in mind a rule of thumb for estimating #tsunami risk from undersea #quake magnitude:
M7+ -> localized tsunami possible
M8+ -> regional tsunami likely
M9+ -> ocean-crossing tsunami expected
#geology

#Japan warns of 3-metre high #tsunami after magnitude 7.6 #earthquake -Reuters

Dec 8, 2025 9:48 AM EST

#TOKYO, Dec 8 (Reuters) - A tsunami as high as three metres (10 feet) could hit Japan's northeastern coast after an earthquake with an estimated magnitude of 7.6 occurred offshore on Monday, JMA said

The tsunami warning was issued for the prefectures of #Hokkaido , #Aomori and #Iwate , after the quake jolted a large part of Japan's north & east at 11:15 PM (1415 GMT)

https://www.reuters.com/business/environment/japan-warns-3-metre-high-tsunami-after-magnitude-72-earthquake-2025-12-08/

A magnitude 7.6 earthquake struck off eastern Aomori Prefecture around 11:15 p.m. Monday, with tsunami warnings issued for coastal areas of Aomori, Iwate and Hokkaido prefectures. https://www.japantimes.co.jp/news/2025/12/08/japan/tohoku-quake-tsunami/?utm_medium=Social&utm_source=mastodon #japan #earthquakes #tsunami

🧵 “Exciting” isn’t enough to describe what I currently have the privilege to take part in. From now until Dec 12, I’m joining "Expedition 503 – Hadal Trench Tsunamigenic Slip History: Buried in Trench" of the IODP³. We’re in the Japan Trench on board the deep-sea scientific drilling vessel D/V Chikyu, one of the most advanced research vessels in the world.
1/3
#climate #earthquake #tsunami #scicomm #podcast

About 60% of designated emergency evacuation sites in areas expected to be damaged by tsunami do not have stockpiles, a new survey claims. https://www.japantimes.co.jp/news/2025/11/30/japan/society/tsunami-evacuation-sites-no-stockpiles/?utm_medium=Social&utm_source=mastodon #japan #society #tsunami #disasterpreparedness

@melaniebartos

I really enjoy your toots, especially when they are in english. And post more photos of your deep sea journey, please!

#ocean #tsunami

🧵 “Exciting” isn’t enough to describe what I currently have the privilege to take part in. From now until Dec 12, I’m joining "Expedition 503 – Hadal Trench Tsunamigenic Slip History: Buried in Trench" of the IODP³. We’re in the Japan Trench on board the deep-sea scientific drilling vessel D/V Chikyu, one of the most advanced research vessels in the world.
1/3
#climate #earthquake #tsunami #scicomm #podcast

The #tsunami vertical evacuation building at OSU Hatfield, Newport, #Oregon. It's designed for the walls to blow out but the structure remains standing. There's space and a supply cache on the roof to support 290 people for two days.

https://hmsc.oregonstate.edu/vertical-evacuation

Photos are the ramp to the roof and the view from the top.

( @peterdrake , this is relevant to your interests.)

A tsunami advisory was issued for Iwate Prefecture following a magnitude 6.7 earthquake that struck off the coast on Sunday evening, measuring a 4 on Japan’s seismic intensity scale. https://www.japantimes.co.jp/news/2025/11/09/japan/iwate-tsunami-warning/?utm_medium=Social&utm_source=mastodon #japan #earthquakes #tsunami #iwate