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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.2 quake has struck near Farallon de Pajaros in Northern Mariana Islands

Earthquake location 21.95S, 143.918WA light earthquake magnitude 4.2 (ml/mb) has occurred on Friday, 186 km NNW of Farallon de Pajaros, Northern Mariana Islands (116 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude 143.918 East, latitude 21.95 North, depth = 256.58 km. The earthquake was roughly at a depth of 256.58 km (159 miles). The temblor was reported at 23:40:25 / 11:40 pm (local time epicenter). Global date and time of event UTC/GMT: 09/08/19 / 2019-08-09 13:40:25 / August 9, 2019 @ 1:40 pm. Event ids that are associated to the earthquake: us600055zz. Id of event: us600055zz.

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 five, in the last 10 days seven, in the past 30 days eight and in the last 365 days fourty-five earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel the quake?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 186 km NNW of Farallon de Pajaros, Northern Mariana Islands. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 143.918° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 21.95° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 256.58 km Depth of the event in kilometers.
Place 186km NNW of Farallon de Pajaros, 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 2019-08-09 13:40:25 Time when the event occurred. UTC/GMT
Updated 2019-09-06 06:07:19 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 11.702 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.2 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 211 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 us600055zz Id of event.
Event Code 600055zz An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us600055zz, A comma-separated list of event ids that are associated to an event.

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