According to China Earthquake Network, at 01:29 on December 1, a magnitude 7.2 earthquake occurred near Anchorage, the largest city in Alaska, USA, at 61.35 degrees north latitude and 150.06 degrees west longitude. The depth of the focal depth was 40 kilometers. The US Geological Survey measured the magnitude of 7.0. Since then, a large number of aftershocks occurred near the epicenter, with the maximum magnitude reaching 5.7.
Because the depth of the focal focal depth is not very deep and the earthquake magnitude is relatively large, the strong vibration has panicked the locals. The violent shaking of the buildings caused people to run to the streets and briefly triggered a tsunami warning in the southern islands and coastal areas of the city. Relevant American agencies even gave a tsunami warning that affected the entire Pacific Ocean, but in fact, there was basically no major tsunami coming, and no reports of death or serious injuries in the tsunami.
However, strong earthquakes have had a serious impact in Alaska. For example, aerial photos show that after the earthquake occurred in the Anchorage area, the Glen Expressway near Jinghu, Alaska was damaged
Many roads in Alaska were affected by this earthquake, and some areas of roads were completely torn apart, and vehicles traveling on the road were even stuck in broken roads.
0000 people said the first and more powerful earthquake was concentrated about 11 kilometers north of Anchorage, Alaska's largest city, with a local population of about 300,000. After a few minutes, a slightly weak magnitude 5.7 aftershocks arrived, followed by a series of smaller earthquakes. The earthquake broke store windows, scattering items from shelves, opening cracks in two-story downtown buildings, interrupted electrical services, paralyzed traffic lights, traffic jams and a mess in the library. Flights at local airports were also suspended for several hours after the earthquake interrupted electricity and forced the control tower to stop operating.
Alaska Governor Bill Walker issued a disaster statement saying it could take more than 1-2 weeks to repair the earthquake-damaged roads.
Alaska, USA is located in the Pacific Rim volcanic seismic zone, so it is very active in both earthquakes and volcanic activities. Alaska has had a super earthquake of magnitude 9.2 in history, which occurred on March 27, 1964. The earthquake occurred 120 kilometers east of Anchorage. It and the tsunami it triggered claimed about 130 lives, which is the strongest earthquake in the United States ever. The state has an average of 40,000 earthquakes per year, with a much higher incidence of earthquakes than other 49 states. Especially in southern Alaska, earthquake risks are high.
In fact, this is not the first time that Alaski's earthquake threat has been mentioned. In recent decades, Alaska has suffered many strong earthquakes of magnitude 7.0 or above, including the magnitude 7.9 earthquake that occurred in the southeast of Kodiak Island in January 2017. Scientists fear that such a large earthquake is likely to approach Alaska's densely populated areas, causing huge casualties. But scientists are unable to determine when a strong earthquake will arrive.
In fact, earthquakes around the world have been frequent in the past two days. In addition to the earthquakes above magnitude 6 and above on the same day in Taiwan Strait and Iran, a strong earthquake of magnitude 6.6 also occurred near , Indonesia on the evening of December 1, Beijing time. Although there is no necessary connection between these earthquakes, in general, the earth may once again enter a period of more active geological activities.
