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Light earthquake: M4.5 quake has struck near Emajagua in Puerto Rico


Earthquake location 17.842S, -65.87WA light earthquake with magnitude 4.5 (ml/mb) was detected on Monday, 17 kilometers (11 miles) from Emajagua in Puerto Rico. All ids that are associated to the event: at00ohpuxs. Unique identifier: at00ohpuxs. A tsunami warning has been issued near Emajagua in Puerto Rico (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 05/12/16 / 2016-12-05 14:29:52 / December 5, 2016 @ 2:29 pm UTC/GMT. The epicenter was at a depth of 13 km (8 miles). The temblor was reported at 10:29:52 / 10:29 am (local time epicenter). Exact location of earthquake, longitude -65.87 West, latitude 17.842 North, depth = 13 km.

Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Earthquake epicenter was 74 km (46 miles) from San Juan (c. 418 100 pop), 69 km (43 miles) from Bayamón (c. 203 500 pop), 61 km (38 miles) from Carolina (c. 170 400 pop), 81 km (50 miles) from Ponce (c. 152 600 pop), 48 km (30 miles) from Caguas (c. 86 800 pop), 63 km (39 miles) from Guaynabo (c. 81 400 pop), 59 km (37 miles) from Trujillo Alto (c. 54 200 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Estancias de Florida, Peñuelas, Florida.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days fourteen and in the last 365 days sixty-eight earthquakes of magnitude 3.0 or greater that have been detected in the same area. Every year there are an estimated 13,000 light earthquakes in the world.

Did you feel the quake?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 17 km S of Emajagua, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -65.87° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.842° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 13 km Depth of the event in kilometers.
Place 17km S of Emajagua, 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 2016-12-05 14:29:52 Time when the event occurred. UTC/GMT
Updated 2016-12-05 14:31:59 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 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 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 312 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 13 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.24 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 179.9999856 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 at00ohpuxs Id of event.
Event Code 00ohpuxs An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00ohpuxs, A comma-separated list of event ids that are associated to an event.

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