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Seismology

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M7.8 Quake Off Kamchatka Triggers Tsunami Alerts as Alaska Advisories Are Downgraded

As part of the aftershocks from July’s 8.8 megathrust, the shallow jolt put Kamchatka on high alert with no confirmed major damage.

Powerful 7.8 Quake Strikes Off Russia’s Kamchatka, Triggers Tsunami Alerts

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Magnitude 6.1 Quake Strikes Papua’s Nabire, Scattered Damage Reported

USGS Reports Magnitude 5.2 Quake Off Aleutians With No Tsunami Warning

M7.4 Quake Off Kamchatka Triggers Tsunami Alerts Later Canceled

Magnitude 7.4 Quake Strikes Russia’s Kamchatka as Local Tsunami Threat Issued

Offshore Oregon 5.8 Quake Triggers Aftershocks as Officials Report No Tsunami or Damage

Shallow 5.2 Quake Off Euboea Jolts Athens, No Major Damage Reported

Study Detects Solid Inner Core on Mars, Redrawing the Planet’s Interior

InSight Data Point to Solid Inner Core and Ancient Impact Debris in Mars’ Mantle

Nature Study Confirms Solid Inner Core on Mars

Shallow 3.7–3.9 Quake Rattles Central California Near Hollister

Seismic Reanalysis Finds Mars’ Mantle Packed With Ancient Impact Debris

Tsunami Threat Lifted After 7.5 Quake Shakes Drake Passage

Back-to-Back 4.0 and 3.3 Quakes Jolt Himachal’s Chamba

Magnitude 4.3 Earthquake Strikes Nagaon, Assam

Study Warns of 15% Chance of Major Cascadia Quake and Mega-Tsunami Risk

August Quakes in Oaxaca and Chiapas Fall Short of Seismic Alert Criteria

Shallow Magnitude 5.8 Quake Near Poso Leaves 29 Injured

Magnitude 5.6 Earthquake Strikes Southeast Queensland, Triggers Outages and Delays