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Notable quake, preliminary info: M 8.0 - 131 km SE of Petropavlovsk-Kamchatsky, Russia earthquake.usgs.gov/earthquakes/ev…

カムチャツカ半島沖の地震、GeoscopeのCMT解。Mwは8.7。 geoscope.ipgp.fr/index.php/en/c…

High-rate GNSS station MIZU in central Honshu, Japan, recorded the M8.7 Petropavlovsk-Kamchatsky, Russia earthquake, 2500 km from the epicenter. A peak motion of over 7 cm is seen in the east component. International GNSS Service (IGS)

MacInnes, B., Kravchunovskaya, E., Pinegina, T. and Bourgeois, J., 2016. Paleotsunamis from the central Kuril Islands segment of the Japan-Kuril-Kamchatka subduction zone. Quaternary Research, 86(1), pp.54-66 sciencedirect.com/science/articl…

Slip Distribution of the 1952 Kamchatka Great Earthquake Based on Near-Field Tsunami Deposits and Historical RecordsSlip Distribution of the 1952 Kamchatka Great Earthquake | Bulletin of the Seismological Society of America | GeoScienceWorld pubs.geoscienceworld.org/ssa/bssa/artic…

#EarthquakeReport for M8.8 #Earthquake offshore of #Kamchatka #Russia been busy responding and still doing that aftershock pattern matches 1952 M9 rupture patch '24 and 20 July '25 foreshocks see report to learn more about 1952: earthjay.com/?p=12053 earthquake.usgs.gov/earthquakes/ev…

Literature regarding the 1923 and 1952 #Kamchatka #earthquakes are available at these links: 1923-02-03: isc.ac.uk/cgi-bin/Format… 1952-11-04: isc.ac.uk/cgi-bin/Format…

The first tsunami waves have reached La Jolla shores as of 1:45 AM, registering around 0.36 feet. For areas upstream, the first waves haven't been the biggest with arrival of additional waves for 6 or more hours after the initial wave.

Videos of coastal slope failures during earthquake in Kamchatka. Taken from telegram, not my own

こうみると、カムチャッカの超巨大地震は、すごい長さのプレート境界壊したな 更なる巨大地震の最悪のシナリオを考えると、残りの千島列島から北海道までのプレート境界全部壊すことが考えられる。 不安を煽りたくないが、最悪の可能性として頭の片隅に置いておいたほうが、減災的には良いと思う

Preliminary teleseismic back-projection images of the Mw 8.8 Kamchatka Peninsula, Russia earthquake on 29 July 2025, generated using publicly available data from seismic stations in Australia (AU), Europe and Asia (EA), and North America (NA).

For the past 14 years, I have been maintaining and updating the Habitable Zone Gallery (hzgallery.org), created along with Dr. Dawn Gelino 💜⁷. We now host HZ data and figures for 3897 systems and 5184 planets, 167 of which lie in the HZ.

なんでこんな巨大地震（500kmくらいの巨大クラック）の破壊が止まるのかって考えると不思議だ。 破壊力学だとクラックサイズが大きければ大きいほど破壊は止まらなくなる。500kmもある巨大なクラックを何が停めているのか。

1枚目の画像はJohnson and Satake(1999)が推定したすべりの分布で、これを見る限り1952年の地震はプレート境界の深部を破壊した地震に見えるので、今回(2025)の地震はすべり残った浅部を破壊したのではとも解釈できる。しかし、B. T. MacInnes et al.(2010)による津波堆積物の調査からは(続く)

Rupture Dynamics of the Middle Section of Littoral Fault Zone: Potential Maximum Magnitude and Cascading Rupture Analysis #SRL In the northern part of the South China Sea. the Littoral Fault Zone features frequent seismic activity. How dangerous is it? buff.ly/YBU9jHj

At first, I thought last week’s M4.3 earthquake near Rialto was linked to the NE-trending Fontana Seismic Lineament. But the aftershocks tell a different story. They outline a NW-trending fault, roughly parallel to the San Jacinto Fault. #earthquake

Great to speak about how last week's tsunami impacted San Diego, just half a foot at La Jolla Shores (and yes, I’ll be keeping a "camera-ready jacket" in my office from now on). Now is a good moment to review tsunami evacuation routes and flood zones in your area!

BREAKING: The NBA is officially removing the Dunk Contest from All-Star Weekend starting in 2026, league sources tell ESPN. It will be replaced by a 1-on-1 King of the Court tournament featuring star player matchups.