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Light earthquake, 4 mag has occurred near Tanaga Volcano in Alaska

Posted by admin on September 12, 2018 0 Comments

Earthquake location 51.272S, -177.8466WA light earthquake magnitude 4 (ml/mb) has struck on Wednesday, 71 km SSE of Tanaga Volcano, Alaska (44 miles). The temblor was picked up at 05:57:40 / 5:57 am (local time epicenter). Exact location of event, longitude -177.8466 West, latitude 51.272 North, depth = 34.98 km. Event id: us2000hdj9. Ids that are associated to the earthquake: us2000hdj9. The earthquake occurred at a depth of 34.98 km (22 miles). Exact time and date of earthquake 12/09/18 / 2018-09-12 17:57:40 / September 12, 2018 @ 5:57 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

There are an estimated 13,000 light earthquakes in the world each year. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days thirty and in the last 365 days one hundred and ninety-eight earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 71 km SSE of Tanaga Volcano, Alaska.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -177.8466° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.272° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 34.98 km Depth of the event in kilometers.
Place 71km SSE of Tanaga Volcano, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-09-12 17:57:40 Time when the event occurred. UTC/GMT
Updated 2018-09-12 18:25:29 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 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 246 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 ,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 0.724 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.32 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 192 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us2000hdj9 Id of event.
Event Code 2000hdj9 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000hdj9, A comma-separated list of event ids that are associated to an event.

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