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Minor earthquake, 2.8 mag was detected near Chirik


Earthquake location 56.8095S, -156.6935WA minor earthquake with magnitude 2.8 (ml/mb) was reported 128 km NNW of Chirikof Island, Alaska (80 miles) on Saturday. Exact location of event, longitude -156.6935 West, latitude 56.8095 North, depth = 81.7 km. Exact time and date of event in UTC/GMT: 15/02/20 / 2020-02-15 22:12:22 / February 15, 2020 @ 10:12 pm. Event id: ak02024fw4e2. Ids that are associated to the earthquake: ak02024fw4e2. The epicenter of the earthquake was roughly 81.7 km (51 miles) below the earth’s surface. The 2.8-magnitude earthquake was detected at 13:12:22 / 1:12 pm (local time epicenter).

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. There are an estimated 1,300,000 minor quakes in the world each year. In the past 24 hours, there have been 0, in the last 10 days one, in the past 30 days four and in the last 365 days twenty-eight earthquakes of magnitude 3.0 or greater that have been detected nearby.

Did you feel it?

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. 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: 128 km NNW of Chirikof Island, Alaska.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -156.6935° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.8095° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 81.7 km Depth of the event in kilometers.
Place 128km NNW of Chirikof Island, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-02-15 22:12:22 Time when the event occurred. UTC/GMT
Updated 2020-02-15 22:17:05 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 automatic 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 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 0.48 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 ak02024fw4e2 Id of event.
Event Code 02024fw4e2 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak02024fw4e2, A comma-separated list of event ids that are associated to an event.

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