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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.3 mag, 181 km SW of Attu Station, Alaska

Posted by admin on March 30, 2018 0 Comments

Earthquake location 51.5736S, 171.5337WA light earthquake with magnitude 4.3 (ml/mb) was reported 181 km SW of Attu Station, Alaska (112 miles) on Thursday. Exact location of earthquake, longitude 171.5337 East, latitude 51.5736 North, depth = 19.31 km. Exact time and date of earthquake 28/02/18 / 2018-02-28 20:49:04 / February 28, 2018 @ 8:49 pm UTC/GMT. The earthquake occurred at a depth of 19.31 km (12 miles) below the earth’s surface. All ids that are associated to the event: us1000d26a. Unique identifier: us1000d26a. The 4.3-magnitude earthquake has occurred at 07:49:04 / 7:49 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

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 one, in the past 30 days one and in the last 365 days six earthquakes of magnitude 3.0 or greater that has occurred nearby. Each year there are an estimated 13,000 light earthquakes in the world.

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, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 181 km SW of Attu Station, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 171.5337° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.5736° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 19.31 km Depth of the event in kilometers.
Place 181km SW of Attu Station, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-02-28 20:49:04 Time when the event occurred. UTC/GMT
Updated 2018-03-30 13:57:16 Time when the event was most recently updated. UTC/GMT
Timezone offset 660 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 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 1.959 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.68 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 223 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 us1000d26a Id of event.
Event Code 1000d26a An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000d26a, A comma-separated list of event ids that are associated to an event.

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