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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag has occurred near Pagan region, Northern Mariana Islands


Earthquake location 18.7505S, 145.6018WA light earthquake with magnitude 4.1 (ml/mb) was reported Pagan region, Northern Mariana Islands (0 miles) on Saturday. The temblor was reported at 04:59:24 / 4:59 am (local time epicenter). Event ids that are associated to the earthquake: us6000d7s4. Id of event: us6000d7s4. The epicenter was at a depth of 158.06 km (98 miles). Exact location of event, longitude 145.6018 East, latitude 18.7505 North, depth = 158.06 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 02/01/21 / 2021-01-02 04:59:24 / January 2, 2021 @ 4:59 am.

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

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 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: Pagan region, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 145.6018° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.7505° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 158.06 km Depth of the event in kilometers.
Place Pagan region, 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 2021-01-02 04:59:24 Time when the event occurred. UTC/GMT
Updated 2021-01-13 03:19:48 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 259 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 3.501 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.92 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 91 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 us6000d7s4 Id of event.
Event Code 6000d7s4 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000d7s4, A comma-separated list of event ids that are associated to an event.

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