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Light earthquake: M4.2 quake has struck near Tallaboa in Puerto Rico


Earthquake location 17.9785S, -66.7758WA light earthquake magnitude 4.2 (ml/mb) has struck on Wednesday, 7 kilometers (4 miles) from Tallaboa in Puerto Rico. Exact location of event, longitude -66.7758 West, latitude 17.9785 North, depth = 7 km. Exact time and date of event in UTC/GMT: 08/01/20 / 2020-01-08 15:45:42 / January 8, 2020 @ 3:45 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: us70006wdm, pr2020008051. Unique identifier: pr2020008051. The earthquake occurred at a depth of 7 km (4 miles) below the earth’s surface. The temblor was detected at 11:45:42 / 11:45 am (local time epicenter).

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Maunabo, Trujillo Alto, Gurabo. Epicenter of the event was 89 km (55 miles) from San Juan (c. 418 100 pop), 80 km (50 miles) from Bayamón (c. 203 500 pop), 17 km (11 miles) from Ponce (c. 152 600 pop), 82 km (51 miles) from Caguas (c. 86 800 pop), 82 km (51 miles) from Guaynabo (c. 81 400 pop), 46 km (28 miles) from Mayagüez (c. 78 600 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

In the past 24 hours, there have been fourty-eight, in the last 10 days one hundred and fifty-six, in the past 30 days one hundred and ninety-three and in the last 365 days two hundred and fifty-two earthquakes of magnitude 3.0 or greater that was reported nearby. Every 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.

Did you feel anything?

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. 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: 7 km SSW of Tallaboa, Puerto Rico.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -66.7758° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.9785° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7 km Depth of the event in kilometers.
Place 7km SSW of Tallaboa, Puerto Rico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-01-08 15:45:42 Time when the event occurred. UTC/GMT
Updated 2020-01-08 16:18:59 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 60 The total number of felt reports
CDI 5 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 301 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network pr The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us,pr, A comma-separated list of network contributors.
Number of Stations Used 12 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1813 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.13 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 201 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID pr2020008051 Id of event.
Event Code 2020008051 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70006wdm,pr2020008051, A comma-separated list of event ids that are associated to an event.

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