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Light earthquake, 4.3 mag has occurred near Esperanza in Puerto Rico



Earthquake location 17.902S, -65.6384WA light earthquake magnitude 4.3 (ml/mb) has struck on Friday, 27 kilometers (17 miles) from Esperanza in Puerto Rico. Unique identifier: pr16246006. Ids that are associated to the event: at00ocwfg4, us10006jt0, pr16246006. Exact time and date of event in UTC/GMT: 02/09/16 / 2016-09-02 22:50:29 / September 2, 2016 @ 10:50 pm. Exact location of event, depth 11 km, -65.6384° West, 17.902° North. The temblor was picked up at 18:50:29 / 6:50 pm (local time epicenter). The epicenter was at a depth of 11 km (7 miles). A tsunami warning has been issued near Esperanza in Puerto Rico (Does not indicate if a tsunami actually did or will exist).

Epicenter of the earthquake was 80 km (50 miles) from San Juan (c. 418 100 pop), 78 km (48 miles) from Bayamón (c. 203 500 pop), 63 km (39 miles) from Carolina (c. 170 400 pop), 57 km (35 miles) from Caguas (c. 86 800 pop), 71 km (44 miles) from Guaynabo (c. 81 400 pop), 64 km (40 miles) from Trujillo Alto (c. 54 200 pop). Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Juana Díaz, San Antonio, Vega Alta (min 5000 pop).

In the past 24 hours, there have been three, in the last 10 days five, in the past 30 days seven and in the last 365 days eighty earthquakes of magnitude 3.0 or greater that has struck near. 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.

Did you feel the quake?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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: 27 km SSW of Esperanza, Puerto Rico.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -65.6384° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.902° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 11 km Depth of the event in kilometers.
Place 27km SSW of Esperanza, 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 2016-09-02 22:50:29 Time when the event occurred. UTC/GMT
Updated 2016-09-03 00:17:26 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 26 The total number of felt reports
CDI 4 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 295 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 ,at,us,pr, A comma-separated list of network contributors.
Number of Stations Used 26 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.20930746 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.34 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 169.2 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 pr16246006 Id of event.
Event Code 16246006 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00ocwfg4,us10006jt0,pr16246006, A comma-separated list of event ids that are associated to an event.

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