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Light earthquake, 4.1 mag has occurred near Sand Point in Alaska

Posted by admin on May 21, 2018 0 Comments

Earthquake location 56.2603S, -161.7216WA light earthquake with magnitude 4.1 (ml/mb) was reported 128 km NW of Sand Point, Alaska (80 miles) on Sunday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 17:42:10 / 5:42 pm (local time epicenter). The earthquake was roughly at a depth of 198.34 km (123 miles). Date and time of earthquake in UTC/GMT: 21/05/18 / 2018-05-21 04:42:10 / May 21, 2018 @ 4:42 am. Event id: us1000e96z. Ids that are associated to the earthquake: us1000e96z. Exact location of event, longitude -161.7216 West, latitude 56.2603 North, depth = 198.34 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 one, in the last 10 days one, in the past 30 days one and in the last 365 days twenty-six earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel anything?

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. 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: 128 km NW of Sand Point, Alaska.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -161.7216° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.2603° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 198.34 km Depth of the event in kilometers.
Place 128km NW of Sand Point, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-05-21 04:42:10 Time when the event occurred. UTC/GMT
Updated 2018-05-21 05:14:18 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 0.59 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.94 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 62 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 us1000e96z Id of event.
Event Code 1000e96z An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000e96z, A comma-separated list of event ids that are associated to an event.

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