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Minor earthquake, 3.1 mag strikes near Sterling in Alaska


Earthquake location 60.711S, -150.6785WA minor earthquake magnitude 3.1 (ml/mb) has occurred on Friday, 19 kilometers (12 miles) from Sterling in Alaska. The epicenter was at a depth of 51.4 km (32 miles). The 3.1-magnitude earthquake has occurred at 07:17:29 / 7:17 am (local time epicenter). Event ids that are associated to the earthquake: ak17641059. Id of event: ak17641059. Exact location of earthquake, longitude -150.6785 West, latitude 60.711 North, depth = 51.4 km. Global date and time of event UTC/GMT: 22/12/17 / 2017-12-22 16:17:29 / December 22, 2017 @ 4:17 pm.

Event epicenter was 70 km (44 miles) from Anchorage (c. 291 800 pop), 47 km (29 miles) from Kalifornsky (c. 7 900 pop), 36 km (22 miles) from Kenai (c. 7 100 pop), 20 km (12 miles) from Sterling (c. 5 600 pop). Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Anchorage, Kalifornsky, Kenai.

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

Did you feel the quake?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 19 km NNE of Sterling, Alaska. This data 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 -150.6785° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 60.711° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 51.4 km Depth of the event in kilometers.
Place 19km NNE of Sterling, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-12-22 16:17:29 Time when the event occurred. UTC/GMT
Updated 2017-12-22 16:25:39 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 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 0.68 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 ak17641059 Id of event.
Event Code 17641059 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak17641059, A comma-separated list of event ids that are associated to an event.

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