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Minor earthquake, 2.8 mag strikes near Adak in Alaska


Earthquake location 51.3989S, -176.1036WA minor earthquake magnitude 2.8 (ml/mb) strikes 65 km SE of Adak, Alaska (40 miles) on Friday. The earthquake occurred at a depth of 30.52 km (19 miles) below the earth’s surface. Global date and time of event UTC/GMT: 31/05/19 / 2019-05-31 15:12:28 / May 31, 2019 @ 3:12 pm. The temblor was detected at 03:12:28 / 3:12 am (local time epicenter). Event ids that are associated to the earthquake: ak0196xz5jku, us70003ws3. Id of event: us70003ws3. Exact location of earthquake, longitude -176.1036 West, latitude 51.3989 North, depth = 30.52 km.

In the past 24 hours, there have been one, in the last 10 days five, in the past 30 days thirteen and in the last 365 days one hundred and nineteen earthquakes of magnitude 3.0 or greater that have been detected nearby. Each year there are an estimated 1,300,000 minor earthquakes in the world. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 65 km SE of Adak, Alaska.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -176.1036° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.3989° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 30.52 km Depth of the event in kilometers.
Place 65km SE 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 2019-05-31 15:12:28 Time when the event occurred. UTC/GMT
Updated 2019-06-30 13:41:21 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 121 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 ,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 0.604 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.25 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 236 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 us70003ws3 Id of event.
Event Code 70003ws3 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak0196xz5jku,us70003ws3, A comma-separated list of event ids that are associated to an event.

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