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Moderate earthquake, 5.2 mag strikes near Larsen Bay in Alaska


Earthquake location 57.4977S, -155.578WA moderate earthquake with magnitude 5.2 (ml/mb) was reported 95 km W of Larsen Bay, Alaska (59 miles) on Thursday. The temblor was reported at 19:58:23 / 7:58 pm (local time epicenter). Exact location of event, longitude -155.578 West, latitude 57.4977 North, depth = 89.6 km. A tsunami warning has been issued near Larsen Bay in Alaska (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 89.6 km (56 miles). Exact time and date of earthquake 11/05/18 / 2018-05-11 04:58:23 / May 11, 2018 @ 4:58 am UTC/GMT. Unique identifier: ak19433436. Ids that are associated to the event: ak19433436, at00p8jshb, us1000e2lp.

Each year there are an estimated 1320 moderate quakes in the world. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days five and in the last 365 days twenty-eight earthquakes of magnitude 3.0 or greater that has struck near.

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 95 km W of Larsen Bay, Alaska.

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More information

Parameter Value Description
Magnitude 5.2 mb The magnitude for the event.
Longitude -155.578° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 57.4977° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 89.6 km Depth of the event in kilometers.
Place 95km W of Larsen Bay, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-05-11 04:58:23 Time when the event occurred. UTC/GMT
Updated 2018-05-11 05:21:03 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 Timezone offset from UTC in minutes at the event epicenter.
Felt 9 The total number of felt reports
CDI 3.4 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 automatic Indicates whether the event has been reviewed by a human.
Tsunami 1 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 419 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak,at,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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.9 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID ak19433436 Id of event.
Event Code 19433436 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak19433436,at00p8jshb,us1000e2lp, A comma-separated list of event ids that are associated to an event.

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