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Minor earthquake: M3.2 quake has struck near Little Sitkin Island in Alaska

Earthquake location 51.3463S, 177.9355WA minor earthquake with magnitude 3.2 (ml/mb) was detected on Saturday, 77 km SSW of Little Sitkin Island, Alaska (48 miles). Global time and date of event 18/04/20 / 2020-04-18 06:41:56 / April 18, 2020 @ 6:41 am UTC/GMT. Exact location of event, longitude 177.9355 East, latitude 51.3463 North, depth = 35 km. Event ids that are associated to the earthquake: ak02050defox, us70009c3j. Id of event: us70009c3j. The temblor was picked up at 18:41:56 / 6:41 pm (local time epicenter). The epicenter was at a depth of 35 km (22 miles).

Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. In the past 24 hours, there have been five, in the last 10 days seven, in the past 30 days ten and in the last 365 days ninety-eight earthquakes of magnitude 3.0 or greater that has occurred nearby. Each year there are an estimated 130,000 minor quakes in the world.

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: 77 km SSW of Little Sitkin Island, Alaska.

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More information

Parameter Value Description
Magnitude 3.2 mb The magnitude for the event.
Longitude 177.9355° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.3463° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 77km SSW 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 2020-04-18 06:41:56 Time when the event occurred. UTC/GMT
Updated 2020-05-09 06:29:50 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 158 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 0.706 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.91 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 214 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 us70009c3j Id of event.
Event Code 70009c3j An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak02050defox,us70009c3j, A comma-separated list of event ids that are associated to an event.

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