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Minor earthquake: M2.8 quake has struck near Little Sitkin Island in Alaska

Earthquake location 51.947S, 178.2946WA minor earthquake with magnitude 2.8 (ml/mb) was reported 14 km W of Little Sitkin Island, Alaska (9 miles) on Saturday. Exact time and date of event in UTC/GMT: 24/02/18 / 2018-02-24 16:55:07 / February 24, 2018 @ 4:55 pm. Exact location of earthquake, 178.2946° East, 51.947° North, depth 133.7 km. The earthquake was roughly at a depth of 133.7 km (83 miles). All ids that are associated to the event: ak18513720. Unique identifier: ak18513720. The temblor was reported at 06:55:07 / 6:55 am (local time epicenter).

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

How would you describe the shaking?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 14 km W of Little Sitkin Island, Alaska.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude 178.2946° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.947° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 133.7 km Depth of the event in kilometers.
Place 14km W of Little Sitkin 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 2018-02-24 16:55:07 Time when the event occurred. UTC/GMT
Updated 2018-03-04 17:09:43 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 0.55 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 ak18513720 Id of event.
Event Code 18513720 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak18513720, A comma-separated list of event ids that are associated to an event.

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