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Minor earthquake, 3.4 mag strikes near Semisopochnoi Island in Alaska

Posted by admin on September 2, 2016 0 Comments

Earthquake location 51.054S, 179.3898WA minor earthquake with magnitude 3.4 (ml/mb) was reported 100 km S of Semisopochnoi Island, Alaska (62 miles) on Sunday. The temblor was detected at 10:45:32 / 10:45 am (local time epicenter). Exact location of earthquake, longitude 179.3898 East, latitude 51.054 North, depth = 21.3 km. Date and time of earthquake in UTC/GMT: 20/08/16 / 2016-08-20 22:45:32 / August 20, 2016 @ 10:45 pm. Event ids that are associated to the earthquake: ak13860382. Id of event: ak13860382. The earthquake occurred at a depth of 21.3 km (13 miles) below the earth’s surface.

There are an estimated 130,000 minor earthquakes 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 four, in the past 30 days ten and in the last 365 days one hundred and eleven earthquakes of magnitude 3.0 or greater that was reported nearby.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. 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: 100 km S of Semisopochnoi Island, Alaska.

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More information

Parameter Value Description
Magnitude 3.4 mb The magnitude for the event.
Longitude 179.3898° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.054° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 21.3 km Depth of the event in kilometers.
Place 100km S of Semisopochnoi 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 2016-08-20 22:45:32 Time when the event occurred. UTC/GMT
Updated 2016-09-02 00:32:09 Time when the event was most recently updated. UTC/GMT
Timezone offset 720 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 178 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 23 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.3269868 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.59 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 226.799981856 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 ak13860382 Id of event.
Event Code 13860382 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak13860382, A comma-separated list of event ids that are associated to an event.

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