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Minor earthquake, 3.1 mag strikes near Emajagua in Puerto Rico


Earthquake location 17.9057S, -65.8861WA minor earthquake magnitude 3.1 (ml/mb) strikes 10 kilometers (6 miles) from Emajagua in Puerto Rico on Saturday. The earthquake occurred at a depth of 8 km (5 miles). Exact location, longitude -65.8861° West, latitude 17.9057° North, depth = 8 km. Event id: pr16338005. Ids that are associated to the earthquake: pr16338005. The 3.1-magnitude earthquake has occurred at 06:59:54 / 6:59 am (local time epicenter). Exact time and date of earthquake 03/12/16 / 2016-12-03 10:59:54 / December 3, 2016 @ 10:59 am UTC/GMT.

Event epicenter was 67 km (41 miles) from San Juan (c. 418 100 pop), 62 km (38 miles) from Bayamón (c. 203 500 pop), 53 km (33 miles) from Carolina (c. 170 400 pop), 78 km (48 miles) from Ponce (c. 152 600 pop), 40 km (25 miles) from Caguas (c. 86 800 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Vega Baja, Ciales, Ponce (min 5000 pop).

Every year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days fourteen and in the last 365 days seventy-seven earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage.

Did you feel it?

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. 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: 10 km S of Emajagua, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.1 mb The magnitude for the event.
Longitude -65.8861° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.9057° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8 km Depth of the event in kilometers.
Place 10km 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 2016-12-03 10:59:54 Time when the event occurred. UTC/GMT
Updated 2016-12-03 11:22:37 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 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 148 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 ,pr, A comma-separated list of network contributors.
Number of Stations Used 17 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.2173923 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 219.6 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type Md The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID pr16338005 Id of event.
Event Code 16338005 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr16338005, A comma-separated list of event ids that are associated to an event.

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