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Moderate earthquake, 5.1 mag strikes near Alaska

Earthquake location 54.906S, -158.256WA moderate earthquake with magnitude 5.1 (ml/mb) was reported south of Alaska (0 miles) on Thursday. The earthquake occurred at a depth of 20 km (12 miles) below the earth’s surface. The temblor was picked up at 16:08:19 / 4:08 pm (local time epicenter). Event id: at00qeai5v. Ids that are associated to the earthquake: at00qeai5v. Global time and date of event 30/07/20 / 2020-07-30 16:08:19 / July 30, 2020 @ 4:08 pm UTC/GMT. A tsunami warning has been issued near Alaska (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude -158.256 West, latitude 54.906 North, depth = 20 km.

Each year there are an estimated 1320 moderate quakes in the world. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. In the past 24 hours, there have been one, in the last 10 days seventy-six, in the past 30 days seventy-seven and in the last 365 days one hundred and twelve earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Questions or comments?

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. 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: south of Alaska.

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More information

Parameter Value Description
Magnitude 5.1 mb The magnitude for the event.
Longitude -158.256° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 54.906° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 20 km Depth of the event in kilometers.
Place south of Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-07-30 16:08:19 Time when the event occurred. UTC/GMT
Updated 2020-07-30 16:13:33 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 400 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 73 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.348371 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.08 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 172.799986176 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 at00qeai5v Id of event.
Event Code 00qeai5v An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00qeai5v, A comma-separated list of event ids that are associated to an event.

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