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Minor earthquake, 2.9 mag has occurred near Semisopochnoi Island in Alaska

Posted by admin on December 18, 2017 0 Comments

Earthquake location 51.8215S, 179.6916WA minor earthquake with magnitude 2.9 (ml/mb) was detected on Saturday, 15 km SSE of Semisopochnoi Island, Alaska (9 miles). All ids that are associated to the event: ak17553797, us2000c3lz. Unique identifier: us2000c3lz. The epicenter was at a depth of 122.67 km (76 miles). Exact time and date of event in UTC/GMT: 09/12/17 / 2017-12-09 11:32:49 / December 9, 2017 @ 11:32 am. Exact location of earthquake, 179.6916° East, 51.8215° North, depth 122.67 km. The temblor was picked up at 01:32:49 / 1:32 am (local time epicenter).

Every year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been 0, in the last 10 days 0, in the past 30 days four and in the last 365 days one hundred and twenty-one earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage.

How would you describe the shaking?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 15 km SSE of Semisopochnoi Island, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude 179.6916° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.8215° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 122.67 km Depth of the event in kilometers.
Place 15km SSE of Semisopochnoi Island, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-12-09 11:32:49 Time when the event occurred. UTC/GMT
Updated 2017-12-18 12:48:11 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 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 129 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak,us, 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 0.112 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.28 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 116 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 us2000c3lz Id of event.
Event Code 2000c3lz An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak17553797,us2000c3lz, A comma-separated list of event ids that are associated to an event.

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