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Light earthquake: M4.8 quake has struck near Tanaga Volcano in Alaska

Posted by admin on September 27, 2018 0 Comments

Earthquake location 51.4913S, -178.4338WA light earthquake with magnitude 4.8 (ml/mb) was reported 48 km SSW of Tanaga Volcano, Alaska (30 miles) on Wednesday. The temblor was reported at 19:55:09 / 7:55 pm (local time epicenter). Global time and date of event 27/09/18 / 2018-09-27 05:55:09 / September 27, 2018 @ 5:55 am UTC/GMT. Exact location, longitude -178.4338° West, latitude 51.4913° North, depth = 10 km. Event id: us1000h34x. Ids that are associated to the earthquake: us1000h34x. The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Each year there are an estimated 13,000 light quakes in the world. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days nine and in the last 365 days two hundred and fourteen earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel anything?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 48 km SSW of Tanaga Volcano, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.8 mb The magnitude for the event.
Longitude -178.4338° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.4913° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 48km SSW 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 2018-09-27 05:55:09 Time when the event occurred. UTC/GMT
Updated 2018-09-27 06:38:19 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 354 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 0.875 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.85 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 125 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 us1000h34x Id of event.
Event Code 1000h34x An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000h34x, A comma-separated list of event ids that are associated to an event.

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