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Light earthquake: M4.3 quake has struck near Buldir Island in Alaska

Posted by admin on August 11, 2015 0 Comments

Earthquake location 52.5057S, 175.3029WA light earthquake with magnitude 4.3 (ml/mb) was reported 45 km WNW of Buldir Island, Alaska (28 miles) on Tuesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter was at a depth of 120.68 km (75 miles). Exact location of event, longitude 175.3029 East, latitude 52.5057 North, depth = 120.68 km. The 4.3-magnitude earthquake has occurred at 20:36:25 / 8:36 pm (local time epicenter). Date and time of earthquake in UTC/GMT: 11/08/15 / 2015-08-11 08:36:25 / August 11, 2015 @ 8:36 am. Event id: us1000311x. Ids that are associated to the earthquake: us1000311x.

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

Did you feel the quake?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 45 km WNW of Buldir Island, Alaska.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 175.3029° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.5057° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 120.68 km Depth of the event in kilometers.
Place 45km WNW of Buldir 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 2015-08-11 08:36:25 Time when the event occurred. UTC/GMT
Updated 2015-08-11 08:56:38 Time when the event was most recently updated. UTC/GMT
Timezone offset 720 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 0.765 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.64 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 167 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 us1000311x Id of event.
Event Code 1000311x An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000311x, A comma-separated list of event ids that are associated to an event.

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