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Minor earthquake: M3 quake has struck near Adak in Alaska


Earthquake location 51.2974S, -177.3787WA minor earthquake magnitude 3 (ml/mb) strikes 81 km SW of Adak, Alaska (50 miles) on Saturday. Exact time and date of earthquake 05/08/18 / 2018-08-05 02:28:25 / August 5, 2018 @ 2:28 am UTC/GMT. Exact location, longitude -177.3787° West, latitude 51.2974° North, depth = 39.6 km. Event id: ak20006892. Ids that are associated to the earthquake: ak20006892. The earthquake occurred at a depth of 39.6 km (25 miles). The temblor was detected at 14:28:25 / 2:28 pm (local time epicenter).

In the past 24 hours, there have been one, in the last 10 days four, in the past 30 days eleven and in the last 365 days one hundred and seventy-seven earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. There are an estimated 130,000 minor quakes in the world each year.

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: 81 km SW of Adak, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -177.3787° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.2974° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 39.6 km Depth of the event in kilometers.
Place 81km SW 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 2018-08-05 02:28:25 Time when the event occurred. UTC/GMT
Updated 2018-08-10 19:55:14 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 0 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 138 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 ,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 0.45 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 ak20006892 Id of event.
Event Code 20006892 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak20006892, A comma-separated list of event ids that are associated to an event.

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