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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.4 mag strikes near Rota in Northern Mariana Islands


Earthquake location 14.1033S, 145.4996WA light earthquake magnitude 4.4 (ml/mb) has occurred on Sunday, 32 kilometers (20 miles) from Rota in Northern Mariana Islands. Exact time and date of event in UTC/GMT: 30/12/17 / 2017-12-30 20:58:01 / December 30, 2017 @ 8:58 pm. The temblor was reported at 06:58:01 / 6:58 am (local time epicenter). Exact location of event, longitude 145.4996 East, latitude 14.1033 North, depth = 110.36 km. The epicenter was at a depth of 110.36 km (69 miles). All ids that are associated to the event: us2000cj08. Unique identifier: us2000cj08. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Nearby country/countries that might be effected, Guam (c. 159 000 pop). Epicenter of the event was 91 km (57 miles) from Yigo Village (c. 20 500 pop). Nearest cities/city/villages to epicentrum/hypocenter was Yigo Village (min 5000 pop).

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-four 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. Each year there are an estimated 13,000 light quakes in the world.

Did you feel anything?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 32 km E of Rota, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 145.4996° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 14.1033° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 110.36 km Depth of the event in kilometers.
Place 32km E of Rota, 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 2017-12-30 20:58:01 Time when the event occurred. UTC/GMT
Updated 2018-01-14 00:31:24 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 298 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 0.798 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.47 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 90 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 us2000cj08 Id of event.
Event Code 2000cj08 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000cj08, A comma-separated list of event ids that are associated to an event.

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