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Light earthquake, 4 mag strikes near Jayuya in Puerto Rico


Earthquake location 18.243S, -66.578WA light earthquake with magnitude 4 (ml/mb) was reported 3 kilometers (2 miles) from Jayuya in Puerto Rico on Sunday. The earthquake occurred at a depth of 3 km (2 miles). Exact location of earthquake, longitude -66.578 West, latitude 18.243 North, depth = 3 km. Exact time and date of event in UTC/GMT: 22/11/15 / 2015-11-22 10:09:15 / November 22, 2015 @ 10:09 am. The temblor was reported at 06:09:15 / 6:09 am (local time epicenter). Event id: at00ny7o7f. Ids that are associated to the earthquake: at00ny7o7f. A tsunami warning has been issued near Jayuya in Puerto Rico (Does not indicate if a tsunami actually did or will exist).

Epicenter of the event was 56 km (35 miles) from San Juan (c. 418 100 pop), 48 km (30 miles) from Bayamón (c. 203 500 pop), 67 km (42 miles) from Carolina (c. 170 400 pop), 26 km (16 miles) from Ponce (c. 152 600 pop), 56 km (35 miles) from Caguas (c. 86 800 pop), 51 km (32 miles) from Guaynabo (c. 81 400 pop). Nearby country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Naguabo, Punta Santiago, Río Grande.

Each year there are an estimated 13,000 light quakes in the world. In the past 24 hours, there have been one, in the last 10 days five, in the past 30 days ten and in the last 365 days one hundred and thirty-six earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 3 km NNE of Jayuya, Puerto Rico.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -66.578° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.243° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 3 km Depth of the event in kilometers.
Place 3km NNE of Jayuya, 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 2015-11-22 10:09:15 Time when the event occurred. UTC/GMT
Updated 2015-11-22 10:16:10 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 2 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 1 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 246 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network at The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at, A comma-separated list of network contributors.
Number of Stations Used 15 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.19583273 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.11 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 68.4 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 at00ny7o7f Id of event.
Event Code 00ny7o7f An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00ny7o7f, A comma-separated list of event ids that are associated to an event.

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