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Minor earthquake: M3 quake has struck near Emajagua in Puerto Rico

Earthquake location 17.929S, -65.8797WA minor earthquake magnitude 3 (ml/mb) has occurred on Tuesday, 7 kilometers (4 miles) from Emajagua in Puerto Rico. Exact location of event, longitude -65.8797 West, latitude 17.929 North, depth = 8 km. Unique identifier: pr17031000. Ids that are associated to the event: pr17031000. Exact time and date of earthquake 31/01/17 / 2017-01-31 04:37:48 / January 31, 2017 @ 4:37 am UTC/GMT. The earthquake occurred at a depth of 8 km (5 miles). The 3-magnitude earthquake has occurred at 00:37:48 / 12:37 am (local time epicenter).

Close country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected). Event epicenter was 64 km (40 miles) from San Juan (c. 418 100 pop), 60 km (37 miles) from Bayamón (c. 203 500 pop), 51 km (32 miles) from Carolina (c. 170 400 pop), 78 km (49 miles) from Ponce (c. 152 600 pop), 38 km (24 miles) from Caguas (c. 86 800 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Vega Baja, Ponce, Ciales.

Every year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. In the past 24 hours, there have been three, in the last 10 days six, in the past 30 days eleven and in the last 365 days ninety earthquakes of magnitude 3.0 or greater that was reported nearby.

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. 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 S of Emajagua, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -65.8797° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.929° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8 km Depth of the event in kilometers.
Place 7km 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 2017-01-31 04:37:48 Time when the event occurred. UTC/GMT
Updated 2017-01-31 07:47:12 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 138 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 13 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.21290072 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 216 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 pr17031000 Id of event.
Event Code 17031000 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr17031000, A comma-separated list of event ids that are associated to an event.

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