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Minor earthquake, 2.8 mag strikes near Big Lake in Alaska

Posted by admin on September 29, 2018 0 Comments

Earthquake location 61.5097S, -150.6059WA minor earthquake magnitude 2.8 (ml/mb) has struck on Saturday, 34 kilometers (21 miles) from Big Lake in Alaska. Exact time and date of earthquake 29/09/18 / 2018-09-29 21:34:38 / September 29, 2018 @ 9:34 pm UTC/GMT. Event ids that are associated to the earthquake: ak20267148. Id of event: ak20267148. The earthquake occurred at a depth of 48 km (30 miles) below the earth’s surface. The temblor was reported at 12:34:38 / 12:34 pm (local time epicenter). Exact location of event, depth 48 km, -150.6059° West, 61.5097° North.

Nearest cities/city/villages to epicentrum/hypocenter was Gateway, Lakes, Tanaina (min 5000 pop). Event epicenter was 50 km (31 miles) from Anchorage (c. 291 800 pop), 59 km (37 miles) from Eagle River (c. 24 800 pop), 53 km (33 miles) from Knik-Fairview (c. 14 900 pop), 70 km (43 miles) from Lakes (c. 8 400 pop), 64 km (40 miles) from Tanaina (c. 8 200 pop). Nearby country/countries that might be effected, United States (c. 310 233 000 pop).

Each year there are an estimated 1,300,000 minor earthquakes in the world. In the past 24 hours, there have been 0, in the last 10 days two, in the past 30 days six and in the last 365 days fifty-two earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

Did you feel anything?

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

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -150.6059° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 61.5097° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 48 km Depth of the event in kilometers.
Place 34km W 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 2018-09-29 21:34:38 Time when the event occurred. UTC/GMT
Updated 2018-09-29 21:38:47 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 121 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 0.71 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 ak20267148 Id of event.
Event Code 20267148 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak20267148, A comma-separated list of event ids that are associated to an event.

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