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Moderate earthquake, 5.2 mag strikes near Adak in Alaska

Earthquake location 50.9093S, -179.3215WA moderate earthquake with magnitude 5.2 (ml/mb) was reported 215 km WSW of Adak, Alaska (134 miles) on Friday. Exact time and date of event in UTC/GMT: 19/02/21 / 2021-02-19 09:11:20 / February 19, 2021 @ 9:11 am. Exact location of earthquake, longitude -179.3215 West, latitude 50.9093 North, depth = 14.4 km. Event ids that are associated to the earthquake: at00qorquz, ak0212auao7g. Id of event: ak0212auao7g. The temblor was detected at 09:11:20 / 9:11 am (local time epicenter). A tsunami warning has been issued near Adak in Alaska (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 14.4 km (9 miles).

Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. There are an estimated 1320 moderate quakes in the world each year. In the past 24 hours, there have been one, in the last 10 days four, in the past 30 days five and in the last 365 days one hundred and sixty earthquakes of magnitude 3.0 or greater that have been detected nearby.

Did you feel the quake?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 215 km WSW of Adak, Alaska.

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More information

Parameter Value Description
Magnitude 5.2 mb The magnitude for the event.
Longitude -179.3215° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 50.9093° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 14.4 km Depth of the event in kilometers.
Place 215 km WSW of Adak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-02-19 09:11:20 Time when the event occurred. UTC/GMT
Updated 2021-02-19 09:21:38 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status reviewed Indicates whether the event has been reviewed by a human.
Tsunami 1 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 416 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at,ak, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.44 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID ak0212auao7g Id of event.
Event Code 0212auao7g An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00qorquz,ak0212auao7g, A comma-separated list of event ids that are associated to an event.

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