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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag strikes near Agrihan in Northern Mariana Islands

Posted by admin on September 4, 2016 0 Comments

Earthquake location 18.6588S, 145.5994WA light earthquake with magnitude 4.5 (ml/mb) was detected on Tuesday, 13 km SSW of Agrihan, Northern Mariana Islands (8 miles). The temblor was detected at 09:23:55 / 9:23 am (local time epicenter). Global time and date of event 22/08/16 / 2016-08-22 23:23:55 / August 22, 2016 @ 11:23 pm UTC/GMT. Id of earthquake: us20006u8k. Event ids that are associated: us20006u8k. Exact location of earthquake, longitude 145.5994 East, latitude 18.6588 North, depth = 196.63 km. The earthquake was roughly at a depth of 196.63 km (122 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Each year there are an estimated 13,000 light earthquakes 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 seven, in the past 30 days fifty-nine and in the last 365 days one hundred and eight earthquakes of magnitude 3.0 or greater that have been detected in the same area.

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: 13 km SSW of Agrihan, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 145.5994° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.6588° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 196.63 km Depth of the event in kilometers.
Place 13km SSW 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 2016-08-22 23:23:55 Time when the event occurred. UTC/GMT
Updated 2016-09-04 05:55:56 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 312 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 3.403 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.52 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 79 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 us20006u8k Id of event.
Event Code 20006u8k An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20006u8k, A comma-separated list of event ids that are associated to an event.

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