Earthquake of 7.4 magnitude strikes off Russia's Kamchatka region, tsunami warning lifted - reuters

Earthquake of 7.4 magnitude strikes off Russia's Kamchatka region, tsunami warning lifted - reuters

On July 20, 2025, a magnitude 7.4 earthquake struck off the coast of the Kamchatka region in the far east of Russia. The earthquake, which occurred at a depth of 10 km, was detected by the German Research Centre for Geosciences (GFZ) and the European Mediterranean Seismological Centre (EMSC) [1].

The earthquake was followed by a series of quakes, including a 6.7 magnitude event, which were all located in the sea about 142 km east of the city of Petropavlovsk-Kamchatsky [2]. The U.S. Geological Survey (USGS) reported that the first quake was followed by a 6.7 magnitude quake, and then several quakes with magnitudes initially measured at 7.4, 6.7, and 6.6 [2].

Russian emergency services issued tsunami warnings for the Aleutsky District, the Ust-Kamchatsky region, and the Petropavlovsk-Kamchatsky urban district. The warnings advised residents to stay away from the shore [1]. The U.S. National Tsunami Warning Center canceled a tsunami watch for Hawaii [1].

The Pacific Tsunami Warning Center (PTWC) initially issued a threat forecast for the Kamchatka Peninsula but later downgraded its warning to say that waves of up to 1 meter (3.3 feet) could occur [3]. The PTWC also issued tsunami warnings for Hawaii, Japan, and the Midway Atoll, but these warnings were later canceled [3].

There were no immediate reports of casualties. The earthquake and subsequent quakes are part of a series of notable seismic events in the region, with the largest recorded quake in Kamchatka being a magnitude 9.0 in 1952, which caused damage but no reported deaths [3].

References:
[1] https://www.reuters.com/business/environment/earthquake-74-magnitude-strikes-off-russias-kamchatka-region-2025-07-20/
[2] https://www.yahoo.com/news/tsunami-threat-warnings-issued-russian-075600918.html
[3] https://www.usnews.com/news/world/articles/2025-07-20/tsunami-warning-after-2-large-quakes-off-russias-pacific-coast