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Light earthquake, 4.4 mag strikes near Esperanza in Puerto Rico



Earthquake location 17.961S, -65.3629WA light earthquake magnitude 4.4 (ml/mb) has struck on Thursday, 18 kilometers (11 miles) from Esperanza in Puerto Rico. The temblor was detected at 22:34:33 / 10:34 pm (local time epicenter). A tsunami warning has been issued near Esperanza in Puerto Rico (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 9 km (6 miles) below the earth’s surface. Date and time of earthquake in UTC/GMT: 02/10/15 / 2015-10-02 02:34:33 / October 2, 2015 @ 2:34 am. Exact location of earthquake, longitude -65.3629 West, latitude 17.961 North, depth = 9 km. Unique identifier: pr15275000. Ids that are associated to the event: pr15275000, at00nvkn5m, us10003jp9.

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Coco, Road Town, Guaynabo. Close country/countries, Puerto Rico (c. 3 917 000 pop), U.S. Virgin Islands (c. 109 000 pop) (That might be effected). Earthquake epicenter was 78 km (49 miles) from Carolina (c. 170 400 pop), 79 km (49 miles) from Caguas (c. 86 800 pop), 90 km (56 miles) from Guaynabo (c. 81 400 pop), 81 km (50 miles) from Trujillo Alto (c. 54 200 pop), 70 km (44 miles) from Saint Croix (c. 50 600 pop), 51 km (32 miles) from Fajardo (c. 34 100 pop).

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. In the past 24 hours, there have been two, in the last 10 days eight, in the past 30 days sixteen and in the last 365 days eighty-eight earthquakes of magnitude 3.0 or greater that has occurred nearby.

Questions or comments?

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. 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: 18 km SE of Esperanza, Puerto Rico.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -65.3629° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.961° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 9 km Depth of the event in kilometers.
Place 18km SE 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 2015-10-02 02:34:33 Time when the event occurred. UTC/GMT
Updated 2015-10-02 02:49:59 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 96 The total number of felt reports
CDI 3.9 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 335 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,at,us, A comma-separated list of network contributors.
Number of Stations Used 60 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.22996871 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.4 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 208.8 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 pr15275000 Id of event.
Event Code 15275000 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr15275000,at00nvkn5m,us10003jp9, A comma-separated list of event ids that are associated to an event.

1 Comment

  1. Elly

    Yes, i feel it in Gurabo, my bed moved real hard! GOD bless us!

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