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Minor earthquake 3.1 mag, 75 km SE of Chignik Lake, Alaska



Earthquake location 55.7264S, -157.9973WA minor earthquake magnitude 3.1 (ml/mb) has struck on Friday, 75 km SE of Chignik Lake, Alaska (47 miles). The temblor was reported at 12:07:36 / 12:07 pm (local time epicenter). Unique identifier: us20008fpa. Ids that are associated to the event: ak15186785, us20008fpa. Exact time and date of event in UTC/GMT: 27/01/17 / 2017-01-27 23:07:36 / January 27, 2017 @ 11:07 pm. The earthquake occurred at a depth of 35 km (22 miles). Exact location of event, depth 35 km, -157.9973° West, 55.7264° North.

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

Did you feel anything?

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: 75 km SE of Chignik Lake, Alaska.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -157.9973° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 55.7264° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 75km SE of Chignik Lake, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-01-27 23:07:36 Time when the event occurred. UTC/GMT
Updated 2017-02-03 04:32:27 Time when the event was most recently updated. UTC/GMT
Timezone offset -660 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 0.622 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.21 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 171 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 us20008fpa Id of event.
Event Code 20008fpa An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak15186785,us20008fpa, A comma-separated list of event ids that are associated to an event.

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