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Minor earthquake, 3 mag strikes near Isabela in Puerto Rico


Earthquake location 18.5783S, -67.01WA minor earthquake magnitude 3 (ml/mb) strikes 8 kilometers (5 miles) from Isabela in Puerto Rico on Friday. The earthquake occurred at a depth of 74 km (46 miles). Unique identifier: pr15205007. Ids that are associated to the event: pr15205007. Exact location of earthquake, -67.01° West, 18.5783° North, depth 74 km. The 3-magnitude earthquake was detected at 07:22:51 / 7:22 am (local time epicenter). Exact time and date of earthquake 24/07/15 / 2015-07-24 11:22:51 / July 24, 2015 @ 11:22 am UTC/GMT.

Epicenter of the event was 76 km (47 miles) from Ponce (c. 152 600 pop), 44 km (27 miles) from Mayagüez (c. 78 600 pop), 33 km (21 miles) from Arecibo (c. 49 300 pop), 67 km (42 miles) from Vega Baja (c. 29 300 pop), 52 km (32 miles) from Barceloneta (c. 22 300 pop). Closest city/cities/towns to epicentrum/hypocenter was Corozal, Orocovis, San Antonio (min 5000 pop). Nearby country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected).

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 fifty-six, in the past 30 days sixty-one and in the last 365 days two hundred and twelve earthquakes of magnitude 3.0 or greater that has struck near. Every year there are an estimated 130,000 minor earthquakes in the world.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city 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: 8 km N of Isabela, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -67.01° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.5783° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 74 km Depth of the event in kilometers.
Place 8km N of Isabela, 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 2015-07-24 11:22:51 Time when the event occurred. UTC/GMT
Updated 2015-07-24 11:42:01 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 12 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.14552708 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.31 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 212.4 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 pr15205007 Id of event.
Event Code 15205007 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr15205007, A comma-separated list of event ids that are associated to an event.

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