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Moderate earthquake, 5.4 mag has occurred near Adak in Alaska

Posted by admin on February 28, 2021 0 Comments

Earthquake location 51.1951S, -178.9287WA moderate earthquake magnitude 5.4 (ml/mb) has struck on Sunday, 176 km WSW of Adak, Alaska (109 miles). Exact location of earthquake, longitude -178.9287 West, latitude 51.1951 North, depth = 45.17 km. The epicenter of the earthquake was roughly 45.17 km (28 miles) below the earth’s surface. Date and time of earthquake in UTC/GMT: 28/02/21 / 2021-02-28 10:44:53 / February 28, 2021 @ 10:44 am. Unique identifier: us7000dec0. Ids that are associated to the event: at00qp8j6t, ak0212pqxcxf, us7000dec0. The temblor was reported at 10:44:53 / 10:44 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).

In the past 24 hours, there have been two, in the last 10 days twenty-one, in the past 30 days twenty-nine and in the last 365 days one hundred and ninety-two earthquakes of magnitude 3.0 or greater that has struck near. Every year there are an estimated 1320 moderate earthquakes in the world. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures.

Did you feel anything?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 176 km WSW of Adak, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 5.4 mb The magnitude for the event.
Longitude -178.9287° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.1951° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 45.17 km Depth of the event in kilometers.
Place 176 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 2021-02-28 10:44:53 Time when the event occurred. UTC/GMT
Updated 2021-02-28 11:05:47 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 449 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at,ak,us, 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 0.629 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.11 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 136 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mww The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us7000dec0 Id of event.
Event Code 7000dec0 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00qp8j6t,ak0212pqxcxf,us7000dec0, A comma-separated list of event ids that are associated to an event.

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