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Minor earthquake: M3.3 quake has struck near False Pass in Alaska


Earthquake location 53.5533S, -163.2127WA minor earthquake magnitude 3.3 (ml/mb) has struck on Wednesday, 145 km S of False Pass, Alaska (90 miles). Exact location, longitude -163.2127° West, latitude 53.5533° North, depth = 38.5 km. Global time and date of event 15/02/17 / 2017-02-15 12:55:40 / February 15, 2017 @ 12:55 pm UTC/GMT. The 3.3-magnitude earthquake was detected at 01:55:40 / 1:55 am (local time epicenter). The epicenter of the earthquake was roughly 38.5 km (24 miles) below the earth’s surface. Unique identifier: us20008m75. Ids that are associated to the event: ak15272110, us20008m75.

In the past 24 hours, there have been five, in the last 10 days twelve, in the past 30 days sixteen and in the last 365 days one hundred and sixty-two earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. There are an estimated 130,000 minor quakes in the world each year.

Questions or comments?

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: 145 km S of False Pass, Alaska.

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More information

Parameter Value Description
Magnitude 3.3 mb The magnitude for the event.
Longitude -163.2127° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 53.5533° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 38.5 km Depth of the event in kilometers.
Place 145km S of False Pass, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-02-15 12:55:40 Time when the event occurred. UTC/GMT
Updated 2017-03-10 12:10:34 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 168 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 0.77 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 us20008m75 Id of event.
Event Code 20008m75 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak15272110,us20008m75, A comma-separated list of event ids that are associated to an event.

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