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Minor earthquake 2.8 mag, 18 km SW of Big Lake, Alaska

Posted by admin on April 5, 2019 0 Comments

Earthquake location 61.3874S, -150.1445WA minor earthquake magnitude 2.8 (ml/mb) has struck on Friday, 18 kilometers (11 miles) from Big Lake in Alaska. The 2.8-magnitude earthquake was detected at 03:10:33 / 3:10 am (local time epicenter). The epicenter of the earthquake was roughly 20.3 km (13 miles) below the earth’s surface. Exact location of event, depth 20.3 km, -150.1445° West, 61.3874° North. Date and time of earthquake in UTC/GMT: 05/04/19 / 2019-04-05 12:10:33 / April 5, 2019 @ 12:10 pm. Event id: ak0194db9de2. Ids that are associated to the earthquake: ak0194db9de2.

Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Palmer, Gateway, Lakes. The epicenter was 23 km (14 miles) from Anchorage (c. 291 800 pop), 32 km (20 miles) from Eagle River (c. 24 800 pop), 32 km (20 miles) from Knik-Fairview (c. 14 900 pop), 51 km (31 miles) from Lakes (c. 8 400 pop), 46 km (29 miles) from Tanaina (c. 8 200 pop).

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

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 18 km SW of Big Lake, Alaska.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -150.1445° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 61.3874° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 20.3 km Depth of the event in kilometers.
Place 18km SW 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 2019-04-05 12:10:33 Time when the event occurred. UTC/GMT
Updated 2019-04-05 12:16:10 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 0.97 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 ak0194db9de2 Id of event.
Event Code 0194db9de2 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak0194db9de2, A comma-separated list of event ids that are associated to an event.

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