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Minor earthquake, 3.1 mag has occurred near False Pass in Alaska


Earthquake location 54.4689S, -163.1861WA minor earthquake with magnitude 3.1 (ml/mb) was reported 45 km SSE of False Pass, Alaska (28 miles) on Monday. Global date and time of event UTC/GMT: 08/10/18 / 2018-10-08 23:06:22 / October 8, 2018 @ 11:06 pm. The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface. The 3.1-magnitude earthquake has occurred at 14:06:22 / 2:06 pm (local time epicenter). All ids that are associated to the event: ak20273807, us1000hd07. Unique identifier: us1000hd07. Exact location, longitude -163.1861° West, latitude 54.4689° North, depth = 10 km.

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

Did you feel it?

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: 45 km SSE of False Pass, Alaska.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -163.1861° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 54.4689° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 45km SSE 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 2018-10-08 23:06:22 Time when the event occurred. UTC/GMT
Updated 2018-10-27 03:36:11 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 0.399 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.3 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 175 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 us1000hd07 Id of event.
Event Code 1000hd07 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak20273807,us1000hd07, A comma-separated list of event ids that are associated to an event.

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