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Minor earthquake 3.2 mag, 80 km SW of Unalaska, Alaska


Earthquake location 53.3454S, -167.3638WA minor earthquake magnitude 3.2 (ml/mb) has struck on Friday, 80 km SW of Unalaska, Alaska (50 miles). Exact time and date of event in UTC/GMT: 30/10/15 / 2015-10-30 17:48:09 / October 30, 2015 @ 5:48 pm. Exact location of earthquake, longitude -167.3638 West, latitude 53.3454 North, depth = 67.9 km. Id of earthquake: ak11758989. Event ids that are associated: ak11758989. The temblor was reported at 09:48:09 / 9:48 am (local time epicenter). The earthquake occurred at a depth of 67.9 km (42 miles) below the earth’s surface.

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

How would you describe the shaking?

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. 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: 80 km SW of Unalaska, Alaska.

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More information

Parameter Value Description
Magnitude 3.2 mb The magnitude for the event.
Longitude -167.3638° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 53.3454° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 67.9 km Depth of the event in kilometers.
Place 80km SW of Unalaska, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-10-30 17:48:09 Time when the event occurred. UTC/GMT
Updated 2015-11-05 02:48:05 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak, A comma-separated list of network contributors.
Number of Stations Used 29 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 190.799984736 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 ak11758989 Id of event.
Event Code 11758989 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11758989, A comma-separated list of event ids that are associated to an event.

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