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According to the U.S. Geological Survey (USGS), the first magnitude 6.3 earthquake occurred just before 11 a.m. local time on Sunday in the Pacific Ocean about 70 miles southwest of Adak, Alaska ...
There are small earthquake swarms every couple of years on average in the subduction zone along the Aleutian chain. A swarm occured in May about 350 miles (550 kilometers) east of Sunday's activity, the center said. The quakes on Sunday did not appear related to recent seismic activity at a volcano near Anchorage that last erupted in 1992.
The strongest earthquake known to have originated from it was a M7.1 that occurred on July 22, 1937. Other large earthquakes include a M4.9 in 2021, and M5.3 in 2024. [2] The 1937 earthquake likely ruptured the entire length of the fault while the 2024 earthquake was observed as originating from a depth of only 7.2 km (4.5 mi).
More than 530 people reported feeling the quake, the USGS said.
The United States Geological Survey wrote in a social media post that the earthquake occurred 106 kilometers (65.8 miles) south of Sand Point, Alaska, at 10:48 p.m. Saturd
Note: The inclusion criteria for adding events are based on WikiProject Earthquakes' notability guideline that was developed for stand-alone articles. The principles described also apply to lists. The principles described also apply to lists.
Logo of the ANSS. The Advanced National Seismic System (ANSS) is a collaboration of the United States Geological Survey (USGS) and regional, state, and academic partners that collects and analyzes data on significant earthquakes to provide near real-time (generally within 10 to 30 minutes [1]) information to emergency responders and officials, the news media, and the public. [2]
An earthquake of magnitude 7.2 struck the Alaska Peninsula region early on Sunday morning, with a tsunami warning issued but later withdrawn.. According to the United States Geological Survey ...