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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.7 mag strikes near Big Lake in Alaska

Earthquake location 61.5685S, -149.9452WA minor earthquake magnitude 3.7 (ml/mb) strikes 5 kilometers (3 miles) from Big Lake in Alaska on Saturday. The epicenter was at a depth of 42.9 km (27 miles). Event id: ak020ec6yo99. Ids that are associated to the earthquake: ak020ec6yo99. Exact location, longitude -149.9452° West, latitude 61.5685° North, depth = 42.9 km. The temblor was picked up at 12:24:22 / 12:24 pm (local time epicenter). Date and time of earthquake in UTC/GMT: 07/11/20 / 2020-11-07 12:24:22 / November 7, 2020 @ 12:24 pm.

Earthquake epicenter was 39 km (24 miles) from Anchorage (c. 291 800 pop), 34 km (21 miles) from Eagle River (c. 24 800 pop), 19 km (12 miles) from Knik-Fairview (c. 14 900 pop), 34 km (21 miles) from Lakes (c. 8 400 pop), 28 km (17 miles) from Tanaina (c. 8 200 pop), 27 km (17 miles) from Wasilla (c. 7 800 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Palmer, Anchorage, Elmendorf Air Force Base (min 5000 pop).

There are an estimated 130,000 minor quakes in the world each year. In the past 24 hours, there have been fifteen, in the last 10 days fifteen, in the past 30 days twenty-one and in the last 365 days one hundred earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

Questions or comments?

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: 5 km N of Big Lake, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.7 mb The magnitude for the event.
Longitude -149.9452° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 61.5685° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 42.9 km Depth of the event in kilometers.
Place 5 km N of Big Lake, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-11-07 12:24:22 Time when the event occurred. UTC/GMT
Updated 2020-12-02 17:42:50 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 211 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 0.69 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 ak020ec6yo99 Id of event.
Event Code 020ec6yo99 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak020ec6yo99, A comma-separated list of event ids that are associated to an event.

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