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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag was detected near Agrihan in Northern Mariana Islands

Posted by admin on November 5, 2017 0 Comments

Earthquake location 18.5182S, 145.5552WA light earthquake magnitude 4.2 (ml/mb) strikes 29 km SSW of Agrihan, Northern Mariana Islands (18 miles) on Friday. The temblor was detected at 08:46:20 / 8:46 am (local time epicenter). All ids that are associated to the event: us2000bhvs. Unique identifier: us2000bhvs. Exact location of earthquake, longitude 145.5552 East, latitude 18.5182 North, depth = 446.87 km. The earthquake occurred at a depth of 446.87 km (278 miles) below the earth’s surface. Global date and time of event UTC/GMT: 26/10/17 / 2017-10-26 22:46:20 / October 26, 2017 @ 10:46 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

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 four, in the past 30 days eight and in the last 365 days seventy-two earthquakes of magnitude 3.0 or greater that has struck near. There are an estimated 13,000 light earthquakes in the world each year.

Questions or comments?

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 29 km SSW of Agrihan, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 145.5552° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.5182° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 446.87 km Depth of the event in kilometers.
Place 29km 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 2017-10-26 22:46:20 Time when the event occurred. UTC/GMT
Updated 2017-11-05 02:11:05 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 271 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 4.945 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.62 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 105 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 us2000bhvs Id of event.
Event Code 2000bhvs An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000bhvs, A comma-separated list of event ids that are associated to an event.

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