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Minor earthquake, 2.8 mag has occurred near Kodiak in Alaska

Earthquake location 56.196S, -150.7069WA minor earthquake magnitude 2.8 (ml/mb) has occurred on Wednesday, 205 km SSE of Kodiak, Alaska (127 miles). The temblor was picked up at 03:01:15 / 3:01 am (local time epicenter). The earthquake was roughly at a depth of 10.2 km (6 miles). Exact location of event, depth 10.2 km, -150.7069° West, 56.196° North. Exact time and date of event in UTC/GMT: 21/02/18 / 2018-02-21 13:01:15 / February 21, 2018 @ 1:01 pm. All ids that are associated to the event: ak18576315. Unique identifier: ak18576315.

In the past 24 hours, there have been fourty, in the last 10 days two hundred and twelve, in the past 30 days one thousand, six hundred and sixty-nine and in the last 365 days one thousand, six hundred and seventy-four earthquakes of magnitude 3.0 or greater that has struck near. Each year there are an estimated 1,300,000 minor quakes in the world. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 205 km SSE of Kodiak, Alaska.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -150.7069° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.196° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10.2 km Depth of the event in kilometers.
Place 205km SSE of Kodiak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-02-21 13:01:15 Time when the event occurred. UTC/GMT
Updated 2018-03-02 22:05:07 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 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 0.72 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 ak18576315 Id of event.
Event Code 18576315 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak18576315, A comma-separated list of event ids that are associated to an event.

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