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



Earthquake location 60.9705S, -150.2986WA minor earthquake magnitude 3.1 (ml/mb) has struck on Thursday, 34 kilometers (21 miles) from Anchorage in Alaska. Exact location of event, longitude -150.2986 West, latitude 60.9705 North, depth = 41.3 km. The 3.1-magnitude earthquake was detected at 21:27:27 / 9:27 pm (local time epicenter). All ids that are associated to the event: ak13503176. Unique identifier: ak13503176. Exact time and date of event in UTC/GMT: 29/04/16 / 2016-04-29 05:27:27 / April 29, 2016 @ 5:27 am. The earthquake occurred at a depth of 41.3 km (26 miles) below the earth’s surface.

Nearest cities/city/villages to epicentrum/hypocenter was Knik-Fairview, Kenai, Eagle River (min 5000 pop). Epicenter of the earthquake was 35 km (22 miles) from Anchorage (c. 291 800 pop), 55 km (34 miles) from Eagle River (c. 24 800 pop), 71 km (44 miles) from Knik-Fairview (c. 14 900 pop), 70 km (43 miles) from Kenai (c. 7 100 pop), 48 km (30 miles) from Elmendorf Air Force Base (c. 6 600 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop).

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

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 34 km SW of Anchorage, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -150.2986° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 60.9705° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 41.3 km Depth of the event in kilometers.
Place 34km SW of Anchorage, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-04-29 05:27:27 Time when the event occurred. UTC/GMT
Updated 2016-04-29 05:39:46 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 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 0.77 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 ak13503176 Id of event.
Event Code 13503176 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak13503176, A comma-separated list of event ids that are associated to an event.

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