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Minor earthquake, 3.1 mag strikes near Nikiski in Alaska

Earthquake location 60.9141S, -150.9554WA minor earthquake with magnitude 3.1 (ml/mb) was detected on Friday, 30 kilometers (19 miles) from Nikiski in Alaska. The temblor was picked up at 11:15:04 / 11:15 am (local time epicenter). Global date and time of event UTC/GMT: 28/02/20 / 2020-02-28 20:15:04 / February 28, 2020 @ 8:15 pm. All ids that are associated to the event: ak0202pwpdb4. Unique identifier: ak0202pwpdb4. The epicenter was at a depth of 34.1 km (21 miles). Exact location of earthquake, longitude -150.9554 West, latitude 60.9141 North, depth = 34.1 km.

Epicenter of the event was 66 km (41 miles) from Anchorage (c. 291 800 pop), 58 km (36 miles) from Kalifornsky (c. 7 900 pop), 43 km (27 miles) from Kenai (c. 7 100 pop), 81 km (50 miles) from Elmendorf Air Force Base (c. 6 600 pop), 43 km (27 miles) from Sterling (c. 5 600 pop). Nearest cities/city/towns to hypocenter/epicentrum was Elmendorf Air Force Base, Anchorage, Kalifornsky (min 5000 pop). Nearby country/countries, United States (c. 310 233 000 pop) (That might be effected).

In the past 24 hours, there have been two, in the last 10 days four, in the past 30 days eight and in the last 365 days one hundred and twenty-two earthquakes of magnitude 3.0 or greater that has struck near. 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.

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 30 km NE of Nikiski, 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 -150.9554° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 60.9141° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 34.1 km Depth of the event in kilometers.
Place 30km NE 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 2020-02-28 20:15:04 Time when the event occurred. UTC/GMT
Updated 2020-02-28 20:24:05 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 2.2 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 0.63 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 ak0202pwpdb4 Id of event.
Event Code 0202pwpdb4 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak0202pwpdb4, A comma-separated list of event ids that are associated to an event.

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