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Light earthquake, 4.1 mag strikes near Tanaga Volcano in Alaska

Posted by admin on September 20, 2017 0 Comments

Earthquake location 51.552S, -178.3907WA light earthquake magnitude 4.1 (ml/mb) has struck on Monday, 40 km SSW of Tanaga Volcano, Alaska (25 miles). All ids that are associated to the event: ak16848686, us2000aq9s. Unique identifier: us2000aq9s. The epicenter of the earthquake was roughly 15.01 km (9 miles) below the earth’s surface. Exact time and date of event in UTC/GMT: 18/09/17 / 2017-09-18 14:32:56 / September 18, 2017 @ 2:32 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was reported at 04:32:56 / 4:32 am (local time epicenter). Exact location of event, longitude -178.3907 West, latitude 51.552 North, depth = 15.01 km.

In the past 24 hours, there have been four, in the last 10 days eleven, in the past 30 days eighteen and in the last 365 days seven hundred and ten earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light earthquakes in the world.

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 40 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 4.1 mb The magnitude for the event.
Longitude -178.3907° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.552° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 15.01 km Depth of the event in kilometers.
Place 40km 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 2017-09-18 14:32:56 Time when the event occurred. UTC/GMT
Updated 2017-09-20 14:08:20 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 2.77 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 259 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 0.317 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.58 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 134 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 us2000aq9s Id of event.
Event Code 2000aq9s An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak16848686,us2000aq9s, A comma-separated list of event ids that are associated to an event.

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