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Moderate earthquake, 5.3 mag has occurred near Adak in Alaska



Earthquake location 51.3558S, -176.514WA moderate earthquake magnitude 5.3 (ml/mb) has occurred on Monday, 59 km S of Adak, Alaska (37 miles). The epicenter was at a depth of 48.62 km (30 miles). Exact location of event, longitude -176.514 West, latitude 51.3558 North, depth = 48.62 km. A tsunami warning has been issued near Adak in Alaska (Does not indicate if a tsunami actually did or will exist). Unique identifier: us10008e99. Ids that are associated to the event: at00onvspu, us10008e99. The temblor was picked up at 22:49:09 / 10:49 pm (local time epicenter). Exact time and date of event in UTC/GMT: 04/04/17 / 2017-04-04 10:49:09 / April 4, 2017 @ 10:49 am.

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

Did you feel the quake?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 59 km S of Adak, Alaska.

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More information

Parameter Value Description
Magnitude 5.3 mb The magnitude for the event.
Longitude -176.514° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.3558° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 48.62 km Depth of the event in kilometers.
Place 59km S 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 2017-04-04 10:49:09 Time when the event occurred. UTC/GMT
Updated 2017-04-04 11:11:04 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 432 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,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 0.537 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.78 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 106 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us10008e99 Id of event.
Event Code 10008e99 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00onvspu,us10008e99, A comma-separated list of event ids that are associated to an event.

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