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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag was detected near Agrihan in Northern Mariana Islands

Posted by admin on July 24, 2017 0 Comments

Earthquake location 19.1926S, 144.9334WA light earthquake with magnitude 4 (ml/mb) was detected on Tuesday, 90 km WNW of Agrihan, Northern Mariana Islands (56 miles). Exact time and date of earthquake 11/07/17 / 2017-07-11 13:47:31 / July 11, 2017 @ 1:47 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 454.78 km (283 miles). The temblor was detected at 23:47:31 / 11:47 pm (local time epicenter). All ids that are associated to the event: us20009xdm. Unique identifier: us20009xdm. Exact location of earthquake, longitude 144.9334 East, latitude 19.1926 North, depth = 454.78 km.

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

Did you feel the quake?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity 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: 90 km WNW of Agrihan, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 144.9334° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.1926° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 454.78 km Depth of the event in kilometers.
Place 90km WNW of Agrihan, Northern Mariana Islands Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-07-11 13:47:31 Time when the event occurred. UTC/GMT
Updated 2017-07-24 13:55:29 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 ,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 17.11 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.76 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 124 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 us20009xdm Id of event.
Event Code 20009xdm An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20009xdm, A comma-separated list of event ids that are associated to an event.

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