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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.2 quake has struck near Rota in Northern Mariana Islands


Earthquake location 13.7785S, 145.4202WA light earthquake with magnitude 4.2 (ml/mb) was detected on Sunday, 47 kilometers (29 miles) from Rota in Northern Mariana Islands. The 4.2-magnitude earthquake was detected at 15:57:22 / 3:57 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude 145.4202 East, latitude 13.7785 North, depth = 101.4 km. The epicenter was at a depth of 101.4 km (63 miles). Exact time and date of event in UTC/GMT: 30/12/18 / 2018-12-30 05:57:22 / December 30, 2018 @ 5:57 am. Event ids that are associated to the earthquake: us2000j553. Id of event: us2000j553.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Agat Village, Santa Rita Village, Inarajan Village. Earthquake epicenter was 69 km (43 miles) from Dededo Village (c. 44 900 pop), 63 km (39 miles) from Yigo Village (c. 20 500 pop), 76 km (47 miles) from Tamuning-Tumon-Harmon Village (c. 19 700 pop), 76 km (47 miles) from Mangilao Village (c. 15 200 pop), 75 km (47 miles) from Barrigada Village (c. 8 900 pop), 92 km (57 miles) from Santa Rita Village (c. 7 500 pop). Nearby country/countries that might be effected, Guam (c. 159 000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been three, in the last 10 days three, in the past 30 days four and in the last 365 days thirty-nine earthquakes of magnitude 3.0 or greater that has occurred nearby. Each year there are an estimated 13,000 light quakes 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: 47 km SSE of Rota, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 145.4202° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 13.7785° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 101.4 km Depth of the event in kilometers.
Place 47km SSE 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 2018-12-30 05:57:22 Time when the event occurred. UTC/GMT
Updated 2019-01-26 09:04:42 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 0.568 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.6 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 271 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 us2000j553 Id of event.
Event Code 2000j553 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000j553, A comma-separated list of event ids that are associated to an event.

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