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Moderate earthquake: M5.4 quake has struck near Amatignak Island in Alaska

Posted by admin on February 21, 2020 0 Comments

Earthquake location 50.454S, -179.769WA moderate earthquake magnitude 5.4 (ml/mb) strikes 101 km SSW of Amatignak Island, Alaska (63 miles) on Thursday. The epicenter was at a depth of 58 km (36 miles). Exact location, longitude -179.769° West, latitude 50.454° North, depth = 58 km. A tsunami warning has been issued near Amatignak Island in Alaska (Does not indicate if a tsunami actually did or will exist). The temblor was detected at 22:20:13 / 10:20 pm (local time epicenter). Event id: at00q61rdp. Ids that are associated to the earthquake: at00q61rdp. Global time and date of event 21/02/20 / 2020-02-21 10:20:13 / February 21, 2020 @ 10:20 am UTC/GMT.

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

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: 101 km SSW of Amatignak Island, Alaska.

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More information

Parameter Value Description
Magnitude 5.4 mb The magnitude for the event.
Longitude -179.769° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 50.454° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 58 km Depth of the event in kilometers.
Place 101km SSW of Amatignak Island, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-02-21 10:20:13 Time when the event occurred. UTC/GMT
Updated 2020-02-21 10:27:22 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 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 449 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network at The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at, A comma-separated list of network contributors.
Number of Stations Used 34 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.407485 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.94 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 309.599975232 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type Mi The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID at00q61rdp Id of event.
Event Code 00q61rdp An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00q61rdp, A comma-separated list of event ids that are associated to an event.

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