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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4 mag, 35 km ESE of Nikolski, Alaska

Posted by admin on August 18, 2017 0 Comments

Earthquake location 52.854S, -168.3573WA light earthquake magnitude 4 (ml/mb) has occurred on Tuesday, 35 km ESE of Nikolski, Alaska (22 miles). The earthquake was roughly at a depth of 44.44 km (28 miles). All ids that are associated to the event: ak16353427, us20009xt4. Unique identifier: us20009xt4. Exact time and date of earthquake 19/07/17 / 2017-07-19 03:38:39 / July 19, 2017 @ 3:38 am UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude -168.3573 West, latitude 52.854 North, depth = 44.44 km. The temblor was picked up at 17:38:39 / 5:38 pm (local time epicenter).

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

Did you feel the quake?

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: 35 km ESE of Nikolski, Alaska.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -168.3573° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.854° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 44.44 km Depth of the event in kilometers.
Place 35km ESE of Nikolski, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-07-19 03:38:39 Time when the event occurred. UTC/GMT
Updated 2017-08-18 01:34:06 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 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 246 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 ,ak,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 0.323 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.01 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 174 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 us20009xt4 Id of event.
Event Code 20009xt4 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak16353427,us20009xt4, A comma-separated list of event ids that are associated to an event.

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