In case you hadn't seen yet, this event has sent seismic signals all around the word, with both body and surface waves. Below are Z-components of GSN stations, filtered 25-100 s.
Goran Ekstrom's surface wave detector gives this a surface magnitude = 5.4(!).

The massive landslide + tsunami in Alaska on Sunday (10 August; earthquake.alaska.edu/major-landsl...) has sent seismic waves all around the world. Body waves visible up to 90°, and surface waves beyond. Record section of Z-component seismic recordings from GSN stations filtered between 25 & 100 s 👇

This morning's M6 Istanbul earthquake was preceded by a M3.9 foreshock ~35 minutes before
deprem.afad.gov.tr/last-earthqu...

Guilherme de Melo et al. (doi.org/10.1029/2024...) recently published a new scaling relationship for ocean transform fault earthquakes
log(rupturelength) = 0.81*Mw-3.68, yielding a 97 km rupture for a Mw 6.9 earthquake. Plus there has already been an aftershock at the western end of the fault.

M6.9 strike-slip quake just now on the active transform fault part of the Charlie Gibbs fracture zone in the N. Atlantic. M~7 is the typical max magnitude of ocean transform events. The active Charlie-Gibbs fault is ~150 km long - a decent portion likely ruptured. earthquake.usgs.gov/earthquakes/...

Reykjanes peninsula, SW Iceland - new fissure eruption is underway www.youtube.com/watch?v=faH3...

BSky hivemind: does anyone know how to plot faults (e.g., with triangular ticks for thrust fronts - like the white line in the map below) with Python/Matplotlib? I know I could do this with PyGMT but I'm trying to work with "raw" figure axes from Matplotlib.

Horrendous. These poor people.

Fault segments and historical earthquakes along the Sagaing fault, which passes beaneath Mandalay, from Wang et al. (2014, JGR). doi.org/10.1002/2013...

Last week, we welcomed >50 UK & international researchers to UCL Earth Sciences and Royal Astronomical Society in London to discuss recent technological and scientific advances in ocean-bottom geophysics and seismology, and to make plans to densely instrument the Atlantic Ocean. Thx to all sponsors!

In lighter news, I had no idea there was a mineral in Earth’s mantle called Dave (… sort of)

Amid ongoing Santorini unrest, re-plugging our recent pre-print: "Leaky faults modulated magma ascent and seismicity during the 2022 São Jorge (Azores) volcanic unrest"
eartharxiv.org/repository/v...
(featuring @pablojglez.bsky.social @alomaxnet.bsky.social amongst others).
Feedback & ideas welcome