Series of earthquakes rattle off Russian coast
At least 11 earthquakes have occurred off the coast of the Kamchatka Peninsula in Russia, according to the United States Geological Survey (USGS).
The quakes ranged in strength from 4.4 to 6.1 magnitude with depths ranging from 10 km (approximately 6 miles) to 75 km (approximately 46 miles), the USGS shows.
There were no reports of injuries or damage from any of the recorded earthquakes and no tsunami warnings have been issued.
Newsweek has reached out by email to the USGS Saturday but received an away message due to the government shutdown.
Why It Matters
The sequence of earthquakes off Russia’s Kamchatka Peninsula on Friday and Saturday is the latest in a turbulent series of seismic events affecting the northwestern Pacific region.
These tremors follow a historic 8.8 magnitude earthquake in July that triggered tsunami warnings throughout the Pacific, causing serious concern for countries including the United States.
The ongoing activity underscores the ongoing seismic threat posed by the Pacific Ring of Fire.
What To Know
On Friday and Saturday, the USGS recorded 11 earthquakes off the coast of Russia’s Kamchatka region. The strongest earthquake was recorded as a 6.1 magnitude that struck about 112 miles, southeast of Vilyuchinsk, Russia, on October 3. It was at a depth of about 11 miles, the USGS map shows.
The other quakes measured at magnitudes of 4.4; 4.5; 4.6; 4.7; 4.9; 5.1; and 5.3 magnitude, according to the USGS.
These recent quakes followed dozens of strong aftershocks and follow a record-setting 8.8 magnitude earthquake that struck near Petropavlovsk-Kamchatsky on July 29. That massive quake, among the most powerful ever recorded, was centered 74 miles east-southeast of Petropavlovsk-Kamchatsky at a shallow depth of approximately 12 miles.
Initial waves of up to five meters were recorded along portions of the Kamchatka coast, while tsunami warnings extended across the Pacific to regions including Hawaii, Japan, and as far as French Polynesia and Chile.
No fatalities were reported in Russia during that period, though several minor injuries and considerable building damage occurred in Kamchatka and the Kuril Islands, Reuters reported.
The USGS aftershock forecast published on July 31 indicated a 24 percent chance of another magnitude 7 or higher event and a near certainty for more moderate tremors in the near future.
What Happens Next?
Seismologists and disaster response agencies are closely monitoring the region for further aftershocks, with the USGS and international partners updating forecasts as new data comes in.
Given the USGS’s aftershock probabilities, additional significant earthquakes are likely in the coming weeks, months, or even years. Any large subsea quake in this volatile region could once again trigger trans-Pacific tsunami warnings, with particular attention to Alaska and Hawaii due to their proximity to the source.
