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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.7 mag strikes near Brenas in Puerto Rico

Posted by admin on December 9, 2018 0 Comments

Earthquake location 18.7691S, -66.3809WA light earthquake magnitude 4.7 (ml/mb) strikes 33 kilometers (21 miles) from Brenas in Puerto Rico on Sunday. Unique identifier: us1000i5gf. Ids that are associated to the event: pt18343050, us1000i5gf. Exact location of event, depth 62.46 km, -66.3809° West, 18.7691° North. 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: 09/12/18 / 2018-12-09 23:00:37 / December 9, 2018 @ 11:00 pm. The 4.7-magnitude earthquake was detected at 19:00:37 / 7:00 pm (local time epicenter). The epicenter of the earthquake was roughly 62.46 km (39 miles) below the earth’s surface.

The epicenter was 44 km (28 miles) from San Juan (c. 418 100 pop), 48 km (30 miles) from Bayamón (c. 203 500 pop), 62 km (39 miles) from Carolina (c. 170 400 pop), 88 km (55 miles) from Ponce (c. 152 600 pop), 69 km (43 miles) from Caguas (c. 86 800 pop), 54 km (33 miles) from Guaynabo (c. 81 400 pop), 61 km (38 miles) from Trujillo Alto (c. 54 200 pop). Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Maunabo, Sabana Grande, Añasco.

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

Questions or comments?

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: 33 km N of Brenas, Puerto Rico.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude -66.3809° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.7691° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 62.46 km Depth of the event in kilometers.
Place 33km N of Brenas, 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 2018-12-09 23:00:37 Time when the event occurred. UTC/GMT
Updated 2018-12-09 23:24:42 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 22 The total number of felt reports
CDI 4.1 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 349 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 ,pt,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 0.322 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.75 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 48 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 us1000i5gf Id of event.
Event Code 1000i5gf An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pt18343050,us1000i5gf, A comma-separated list of event ids that are associated to an event.

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