On Sunday, the U.S. Geological Survey issued a tsunami alert, forecasting "hazardous waves" after a 7.4-magnitude quake at 0849 GMT, which was the strongest of a series of earthquakes in the northern Pacific Ocean. https://www.japantimes.co.jp/commentary/2025/07/20/world/russia-tsunami-alert-lifted/?utm_medium=Social&utm_source=mastodon #commentary #worldnews #kamchatka #russia #tsunami #earthquake
"7.3 magnitude earthquake rattles Alaskan island, prompting tsunami advisory" by ABC News @abc - NOAA briefly issued a #tsunami warning for M7.3 #earthquake vicinity in Alaska's Aleutian Islands, later reduced to advisory and then cancelled when a tsunami wasn't observed. https://abcnews.go.com/US/72-magnitude-earthquake-rattles-sand-point-alaska-prompting/story?id=123814339 #quake #geology
Rule of thumb for estimating #tsunami risk from an undersea #earthquake magnitude:
M7+ -> localized tsunami possible
M8+ -> regional tsunami likely
M9+ -> ocean-crossing tsunami expected
#quake #geology
"Tsunami warning in effect along parts of Alaska’s southern coast after 7.3 magnitude earthquake" by KOIN News (CBS Portland Oregon) - M7.3 #quake in Alaska's Aleutian Islands led to a local/regional #tsunami warning just for Alaska Peninsula and Aleutians. No tsunami danger for coastal BC WA OR CA. https://www.koin.com/news/national/tsunami-warning-in-effect-along-parts-of-alaskas-southern-coast-after-7-3-magnitude-earthquake/ #earthquake #geology
#tsunami #warning
🌊Category: Advisory
Bulletin Issue Time: 2025.07.16 21:44:18 UTC
Preliminary Magnitude: 7.3(Mwp)
Lat/Lon: 54.500 / -160.500
Affected Region: 55 miles S of Sand Point, Alaska
Note: Actions to protect human life and property willvary within tsunami advisory areas.If you are in a tsunami advisory area: * Move out of the water, off the beach, and away from harbors, marinas, bays, and inlets. * Be alert to and follow ins
https://www.tsunami.gov/events/PAAQ/2025/07/16/sziems/3/WEAK51/WEAK51.txt
🌊Category: Advisory
Bulletin Issue Time: 2025.07.16 21:44:18 UTC
Preliminary Magnitude: 7.3(Mwp)
Lat/Lon: 54.500 / -160.500
Affected Region: 55 miles S of Sand Point, Alaska
Note: Actions to protect human life and property willvary within tsunami advisory areas.If you are in a tsunami advisory area: * Move out of the water, off the beach, and away from harbors, marinas, bays, and inlets. * Be alert to and follow ins
https://www.tsunami.gov/events/PAAQ/2025/07/16/sziems/3/WEAK51/WEAK51.txt
Earthquake/Tsunami
An M7.2 earthquake at 20h38 UT 16 July on the Alaska Peninsula has triggered a tsunami warning.
Update: Live coverage on these YouTube channels:
https://www.youtube.com/watch?v=UaA1gzU22GI
A viral manga prediction of a July 5 disaster has gripped Japan with anxiety and triggered an economic impact, but experts warn that while such dates are unreliable, the threat of a massive earthquake remains real. https://www.japantimes.co.jp/commentary/2025/07/02/japan/prophesied-disaster-likely-wont-strike-japan/?utm_medium=Social&utm_source=mastodon #commentary #japan #fukushima #311 #fukushimano1 #tsunami #earthquakes #manga
In the first update to a disaster-prevention basic plan since it was created in 2014, the government adopted a 10-year plan to reduce the death toll resulting from a Nankai Trough megaquake by 80%. https://www.japantimes.co.jp/news/2025/07/02/japan/nankai-quake-deaths-reduction-strategy/?utm_medium=Social&utm_source=mastodon #japan #earthquakes #tsunami #disasterpreparedness #nankaitrough