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Minor earthquake: M3.1 quake has struck near Little Sitkin Island in Alaska



Earthquake location 51.8956S, 178.4595WA minor earthquake magnitude 3.1 (ml/mb) strikes 6 km SSW of Little Sitkin Island, Alaska (4 miles) on Wednesday. The temblor was reported at 17:15:26 / 5:15 pm (local time epicenter). Event id: us10008x5z. Ids that are associated to the earthquake: ak16151601, us10008x5z. Exact location of event, depth 111.2 km, 178.4595° East, 51.8956° North. Date and time of earthquake in UTC/GMT: 01/06/17 / 2017-06-01 03:15:26 / June 1, 2017 @ 3:15 am. The epicenter of the earthquake was roughly 111.2 km (69 miles) below the earth’s surface.

Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. There are an estimated 130,000 minor earthquakes in the world each year. In the past 24 hours, there have been eight, in the last 10 days twelve, in the past 30 days twenty-three and in the last 365 days one hundred and seventy-one earthquakes of magnitude 3.0 or greater that has occurred nearby.

Questions or comments?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 6 km SSW of Little Sitkin Island, Alaska.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude 178.4595° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.8956° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 111.2 km Depth of the event in kilometers.
Place 6km 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 2017-06-01 03:15:26 Time when the event occurred. UTC/GMT
Updated 2017-06-21 01:42:20 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 148 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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.34 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 us10008x5z Id of event.
Event Code 10008x5z An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak16151601,us10008x5z, A comma-separated list of event ids that are associated to an event.

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