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Light earthquake: M4.1 quake has struck near Chignik Lake in Alaska

Posted by admin on July 19, 2016 0 Comments

Earthquake location 57.0638S, -157.9003WA light earthquake magnitude 4.1 (ml/mb) has struck on Tuesday, 100 km NE of Chignik Lake, Alaska (62 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: ak13772238. Ids that are associated to the event: us20006fst, ak13772238. Global date and time of event UTC/GMT: 19/07/16 / 2016-07-19 12:48:02 / July 19, 2016 @ 12:48 pm. The earthquake occurred at a depth of 0 km (0 miles) below the earth’s surface. The temblor was reported at 04:48:02 / 4:48 am (local time epicenter). Exact location of event, longitude -157.9003 West, latitude 57.0638 North, depth = 0 km.

Each year there are an estimated 13,000 light quakes in the world. 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 one hundred and twenty earthquakes of magnitude 3.0 or greater that has struck near.

How would you describe the shaking?

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. 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: 100 km NE of Chignik Lake, Alaska.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -157.9003° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 57.0638° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 0 km Depth of the event in kilometers.
Place 100km NE of Chignik Lake, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-07-19 12:48:02 Time when the event occurred. UTC/GMT
Updated 2016-07-19 13:18:16 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 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 4.34 The maximum estimated instrumental intensity for the event.
Alert Level green 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 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 ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us,ak, 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 0.86 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 ak13772238 Id of event.
Event Code 13772238 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20006fst,ak13772238, A comma-separated list of event ids that are associated to an event.

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