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Minor earthquake, 3.07 mag has occurred near San Antonio in Puerto Rico


Earthquake location 18.4426S, -66.3103WA minor earthquake with magnitude 3.07 (ml/mb) was detected on Thursday, 1 kilometers (1 miles) from San Antonio in Puerto Rico. Event ids that are associated to the earthquake: pr2017166004. Id of event: pr2017166004. The 3.07-magnitude earthquake was detected at 05:45:14 / 5:45 am (local time epicenter). Exact location of earthquake, -66.3103° West, 18.4426° North, depth 108 km. Exact time and date of event in UTC/GMT: 15/06/17 / 2017-06-15 09:45:14 / June 15, 2017 @ 9:45 am. The earthquake occurred at a depth of 108 km (67 miles).

Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Maricao, Isabela, Las Marías (min 5000 pop). Event epicenter was 22 km (14 miles) from San Juan (c. 418 100 pop), 17 km (11 miles) from Bayamón (c. 203 500 pop), 38 km (24 miles) from Carolina (c. 170 400 pop), 58 km (36 miles) from Ponce (c. 152 600 pop), 36 km (22 miles) from Caguas (c. 86 800 pop).

In the past 24 hours, there have been one, in the last 10 days four, in the past 30 days fourteen and in the last 365 days one hundred and seventy-five earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor quakes in the world.

How would you describe the shaking?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 1 km SW of San Antonio, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.07 mb The magnitude for the event.
Longitude -66.3103° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.4426° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 108 km Depth of the event in kilometers.
Place 1km SW of San Antonio, 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 2017-06-15 09:45:14 Time when the event occurred. UTC/GMT
Updated 2017-06-16 01:35:22 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 145 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 0.4539 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.24 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 182 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 pr2017166004 Id of event.
Event Code 2017166004 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2017166004, A comma-separated list of event ids that are associated to an event.

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