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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag strikes near Attu Station in Alaska

Posted by admin on April 14, 2019 0 Comments

Earthquake location 52.0391S, 170.7794WA light earthquake magnitude 4.1 (ml/mb) strikes 186 km WSW of Attu Station, Alaska (116 miles) on Friday. Global date and time of event UTC/GMT: 22/03/19 / 2019-03-22 08:32:01 / March 22, 2019 @ 8:32 am. The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface. Exact location of earthquake, longitude 170.7794 East, latitude 52.0391 North, depth = 10 km. The 4.1-magnitude earthquake was detected at 19:32:01 / 7:32 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us2000k74x. Event ids that are associated: us2000k74x.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days three and in the last 365 days eight earthquakes of magnitude 3.0 or greater that has occurred nearby. Every year there are an estimated 13,000 light earthquakes in the world.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage 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: 186 km WSW of Attu Station, Alaska.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 170.7794° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.0391° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 186km WSW 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 2019-03-22 08:32:01 Time when the event occurred. UTC/GMT
Updated 2019-04-14 06:13:43 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 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 ,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 2.149 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 212 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 us2000k74x Id of event.
Event Code 2000k74x An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000k74x, A comma-separated list of event ids that are associated to an event.

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