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Minor earthquake, 2.8 mag strikes near Cohoe in Alaska

Posted by admin on February 18, 2018 0 Comments

Earthquake location 60.1321S, -151.0891WA minor earthquake magnitude 2.8 (ml/mb) has occurred on Sunday, 28 kilometers (17 miles) from Cohoe in Alaska. The earthquake was roughly at a depth of 54 km (34 miles). The 2.8-magnitude earthquake has occurred at 10:42:40 / 10:42 am (local time epicenter). Global time and date of event 18/02/18 / 2018-02-18 19:42:40 / February 18, 2018 @ 7:42 pm UTC/GMT. Exact location, longitude -151.0891° West, latitude 60.1321° North, depth = 54 km. Unique identifier: ak18450677. Ids that are associated to the event: ak18450677.

Earthquake epicenter was 34 km (21 miles) from Kalifornsky (c. 7 900 pop), 48 km (30 miles) from Kenai (c. 7 100 pop), 48 km (30 miles) from Sterling (c. 5 600 pop), 60 km (37 miles) from Homer (c. 5 000 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Homer, Sterling, Kenai (min 5000 pop).

There are an estimated 1,300,000 minor earthquakes in the world each year. 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 four, in the past 30 days eight and in the last 365 days seventy-six earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city 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: 28 km SSE of Cohoe, Alaska.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -151.0891° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 60.1321° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 54 km Depth of the event in kilometers.
Place 28km SSE of Cohoe, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-02-18 19:42:40 Time when the event occurred. UTC/GMT
Updated 2018-02-18 19:53:21 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 0.63 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 ak18450677 Id of event.
Event Code 18450677 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak18450677, A comma-separated list of event ids that are associated to an event.

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