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Light earthquake, 4.3 mag strikes near Adak in Alaska

Posted by admin on September 3, 2015 0 Comments

Earthquake location 51.9282S, -175.7367WA light earthquake magnitude 4.3 (ml/mb) has struck on Thursday, 63 km E of Adak, Alaska (39 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude -175.7367° West, latitude 51.9282° North, depth = 69.85 km. Id of earthquake: us20003g1h. Event ids that are associated: us20003g1h. Date and time of earthquake in UTC/GMT: 03/09/15 / 2015-09-03 18:04:40 / September 3, 2015 @ 6:04 pm. The 4.3-magnitude earthquake has occurred at 09:04:40 / 9:04 am (local time epicenter). The epicenter of the earthquake was roughly 69.85 km (43 miles) below the earth’s surface.

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

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. 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: 63 km E of Adak, Alaska.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -175.7367° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.9282° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 69.85 km Depth of the event in kilometers.
Place 63km E of Adak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-03 18:04:40 Time when the event occurred. UTC/GMT
Updated 2015-09-03 18:17:23 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 284 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 0.259 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.13 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 181 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 us20003g1h Id of event.
Event Code 20003g1h An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003g1h, A comma-separated list of event ids that are associated to an event.

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