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Minor earthquake: M3.1 quake has struck near Nikiski in Alaska

Posted by admin on December 19, 2015 0 Comments

Earthquake location 60.912S, -151.2002WA minor earthquake with magnitude 3.1 (ml/mb) was reported 25 kilometers (16 miles) from Nikiski in Alaska on Saturday. The 3.1-magnitude earthquake was detected at 02:02:56 / 2:02 am (local time epicenter). Event ids that are associated to the earthquake: ak12287659. Id of event: ak12287659. Exact location, longitude -151.2002° West, latitude 60.912° North, depth = 58.1 km. Date and time of earthquake in UTC/GMT: 19/12/15 / 2015-12-19 11:02:56 / December 19, 2015 @ 11:02 am. The epicenter of the earthquake was roughly 58.1 km (36 miles) below the earth’s surface.

Closest city/cities/towns to epicentrum/hypocenter was Anchorage, Kalifornsky, Sterling (min 5000 pop). Country/countries that might be effected, United States (c. 310 233 000 pop). The epicenter was 78 km (48 miles) from Anchorage (c. 291 800 pop), 55 km (34 miles) from Kalifornsky (c. 7 900 pop), 40 km (25 miles) from Kenai (c. 7 100 pop), 48 km (30 miles) from Sterling (c. 5 600 pop).

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 two, in the last 10 days three, in the past 30 days five and in the last 365 days sixty-two earthquakes of magnitude 3.0 or greater that has struck near.

Did you feel anything?

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. 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: 25 km N of Nikiski, Alaska.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -151.2002° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 60.912° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 58.1 km Depth of the event in kilometers.
Place 25km N of Nikiski, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-12-19 11:02:56 Time when the event occurred. UTC/GMT
Updated 2015-12-19 11:31:38 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 automatic 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 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 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 0.53 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 ak12287659 Id of event.
Event Code 12287659 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak12287659, A comma-separated list of event ids that are associated to an event.

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