Earthquakes

Magnitude 5+ Earthquakes – Global

5.5 earthquake hits Vanuatu.

5.3 earthquake hits Alaska.

Marsquakes

NASA's InSight lander touched down on Mars in November 2018 carrying the most sensitive seismometer ever designed. Since the mission's arrival, it has detected countless events dubbed marsquakes

The first seismic event, called S0976a, was of magnitude 4.2, occurred on Aug. 25, 2021 and originated in the Valles Marineris, a vast network of canyons that extends 2,500 miles (4,000 kilometers), on the opposite side of the planet from InSight.

The second marsquake, called S1000a, occurred 24 days later, on Sept. 18, 2021. This event was slightly smaller, at magnitude 4.1, and the marsquake's exact location remains unknown beyond that scientists have isolated it to the far side of Mars. S1000a also lasted for 94 minutes — the longest seismic event ever recorded on Mars.

Underwater Volcano Triggers 85 000 earthquakes

A long-dormant underwater volcano near Antarctica has woken up, triggering a swarm of 85,000 earthquakes. The swarm, which began in August 2020 and subsided by November of that year, is the strongest earthquake activity ever recorded in the region. And the quakes were likely caused by a "finger" of hot magma poking into the crust, new research finds.