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Minor earthquake, 2.9 mag was detected near Adak in Alaska


Earthquake location 51.458S, -177.0844WA minor earthquake with magnitude 2.9 (ml/mb) was detected on Wednesday, 55 km SSW of Adak, Alaska (34 miles). The 2.9-magnitude earthquake has occurred at 03:07:24 / 3:07 am (local time epicenter). Date and time of earthquake in UTC/GMT: 22/11/17 / 2017-11-22 13:07:24 / November 22, 2017 @ 1:07 pm. Exact location of event, longitude -177.0844 West, latitude 51.458 North, depth = 37.03 km. The earthquake occurred at a depth of 37.03 km (23 miles). Event id: us2000bv20. Ids that are associated to the earthquake: ak17374434, us2000bv20.

In the past 24 hours, there have been six, in the last 10 days twelve, in the past 30 days twenty-five and in the last 365 days eight hundred and two earthquakes of magnitude 3.0 or greater that have been detected nearby. 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 the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 55 km SSW of Adak, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -177.0844° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.458° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 37.03 km Depth of the event in kilometers.
Place 55km SSW 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 2017-11-22 13:07:24 Time when the event occurred. UTC/GMT
Updated 2017-12-10 13:20:15 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 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 129 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 0.317 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.36 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 203 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 us2000bv20 Id of event.
Event Code 2000bv20 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak17374434,us2000bv20, A comma-separated list of event ids that are associated to an event.

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