Earthquakes Alaska

An undersea earthquake measured at 5.5 on the Richter scale shook fishing communities along the Alaska Peninsula on Tuesday but caused no damage, the Alaska Tsunami Warning Center reported.

A 6.4-magnitude earthquake struck Alaska and jolted residents of Anchorage and Kodiak and other cities for hundreds of miles, but no damages or injuries were reported. The quake was centered about 70 miles east of King Salmon on the Alaska Peninsula, or about 245 miles southwest of Anchorage, said Guy Urban of the West Coast Alaska Tsunami Warning Center.

A series of strong earthquakes shook Alaska's biggest city Wednesday but caused only minor damage, officials said. A quake of magnitude 5.7 was followed by aftershocks that measured 4.5 and 4.1. No injuries were reported.

A magnitude 6.7 earthquake rattled coastal Alaska on Wednesday, authorities said, but no significant damage or tidal wave threat was reported. The quake struck at 7:03 a.m. (8:03 a.m. PST), was centered 65 miles southwest of Kodiak Island, Alaska, and was felt across the region, according to the National Earthquake Information Center in Golden, Colo. The West Coast & Alaska Tsunami Warning Center in Palmer, Alaska, measured the quake at 6.9 and pinpointed it at 20 miles below the sea floor.

A major earthquake in the Gulf of Alaska sent jolts through several cities and towns on the Alaskan coast Monday, but authorities reported no injuries and only minor damage to buildings. The earthquake struck at 11:23 a.m. PST with an epicenter about 290 miles southeast of Anchorage. Throughout the day, varying magnitudes on the Richter scale of 7.4 to 7.7 were reported by seismology stations, making it the largest quake to strike the United States since an 8.

Two earthquakes shook the Aleutian Islands Sunday, but there were no reports of damage or injuries. A moderate 5.5 quake jolted Adak at 4:48 a.m. A magnitude 4.9 quake shook Atka at 12:11 p.m.

A strong earthquake of magnitude 6.4 in central Alaska knocked books off shelves and briefly disrupted phone service, but there were no reports of injuries or major damage. The Thursday quake was centered about 40 miles northwest of Fairbanks, said Rebecca Phipps of the U.S. Geological Survey. Several dozen aftershocks followed.

A 6.6-magnitude earthquake struck off the Aleutian Islands late Tuesday, 11 days after a powerful quake in the same region. There were no immediate reports of damage or injuries. The earthquake at 8:30 p.m. PST was centered in the Pacific Ocean about 200 miles southwest of Adak Island, said Tom Sokolowski of the Alaska Tsunami Warning Center in Palmer. It did not generate a tidal wave.

An earthquake with a magnitude of 5.1 shook southwestern Alaska early Saturday, but no damage or injuries were reported, officials said.

An earthquake with a magnitude of 5.0 jolted Anchorage and Palmer, but no damage was reported, officials said. The epicenter of the quake Thursday night was in a remote area.

Two earthquakes shook the Aleutian Islands Sunday, but there were no reports of damage or injuries. A moderate 5.5 quake jolted Adak at 4:48 a.m. A magnitude 4.9 quake shook Atka at 12:11 p.m.

A strong, rolling earthquake rocked Anchorage and a wide area of southern and interior Alaska, sending people scurrying into the streets. There were no immediate reports of serious damage or injuries. The quake was measured at a preliminary magnitude of 6.4 and was centered 125 miles southwest of Anchorage. It was felt in Anchorage, Kodiak, Fairbanks, Palmer and Cordova, shaking an area about 225 miles by 500 miles.

A 6.6-magnitude earthquake struck off the Aleutian Islands late Tuesday, 11 days after a powerful quake in the same region. There were no immediate reports of damage or injuries. The earthquake at 8:30 p.m. PST was centered in the Pacific Ocean about 200 miles southwest of Adak Island, said Tom Sokolowski of the Alaska Tsunami Warning Center in Palmer. It did not generate a tidal wave.

A magnitude-7.7 earthquake struck in the ocean off the Aleutian Islands Sunday night, but no damage was initially reported. The quake was centered in the Pacific about 60 miles west-southwest of the island of Adak, or 1,250 miles west-southwest of Anchorage, said geophysicist John Minsch of the U.S. Geological Survey National Earthquake Information Center in Golden, Colo. The quake was reported at 9:04 p.m. PDT. The Alaska Tsunami Warning Center issued a watch for tsunamis from Point Sur, Calif.

A strong earthquake of magnitude 6.4 in central Alaska knocked books off shelves and briefly disrupted phone service, but there were no reports of injuries or major damage. The Thursday quake was centered about 40 miles northwest of Fairbanks, said Rebecca Phipps of the U.S. Geological Survey. Several dozen aftershocks followed.

A series of strong earthquakes shook Alaska's biggest city Wednesday but caused only minor damage, officials said. A quake of magnitude 5.7 was followed by aftershocks that measured 4.5 and 4.1. No injuries were reported.

A moderate earthquake shook parts of southeast Alaska and the southwest corner of the Yukon early Wednesday, but no damage or injuries were reported. The Alaska Tsunami Warning Center said that the quake registered a preliminary magnitude of 5.7.

Moderate earthquakes were felt Sunday in several Northern California communities and Kodiak, Alaska, while three small aftershocks of the Jan. 17 Northridge earthquake rattled the San Fernando Valley. No damage was reported. The Northern California quake struck at 3:39 a.m. and measured magnitude 4.9, said Mike Antolik of the University of California seismographic station in Berkeley. It was centered about 36 miles southwest of Eureka.