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Minor earthquake: M3.12 quake has struck near Pole Ojea in Puerto Rico


Earthquake location 17.6305S, -67.5598WA minor earthquake with magnitude 3.12 (ml/mb) was detected on Monday, 55 kilometers (34 miles) from Pole Ojea in Puerto Rico. Exact location of earthquake, longitude -67.5598 West, latitude 17.6305 North, depth = 44 km. The epicenter of the earthquake was roughly 44 km (27 miles) below the earth’s surface. The 3.12-magnitude earthquake was detected at 04:12:29 / 4:12 am (local time epicenter). Event id: pr2017219006. Ids that are associated to the earthquake: pr2017219006. Exact time and date of event in UTC/GMT: 07/08/17 / 2017-08-07 09:12:29 / August 7, 2017 @ 9:12 am.

Epicenter of the event was 77 km (48 miles) from Mayagüez (c. 78 600 pop), 74 km (46 miles) from San Germán (c. 12 100 pop), 73 km (45 miles) from Hormigueros (c. 11 900 pop), 67 km (42 miles) from Cabo Rojo (c. 10 800 pop), 79 km (49 miles) from Guánica (c. 9 200 pop). Closest city/cities/towns to epicentrum/hypocenter was Guánica, Mayagüez, San Germán (min 5000 pop). Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days fifteen and in the last 365 days one hundred and nine earthquakes of magnitude 3.0 or greater that has occurred nearby.

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 55 km SW of Pole Ojea, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.12 mb The magnitude for the event.
Longitude -67.5598° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.6305° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 44 km Depth of the event in kilometers.
Place 55km SW of Pole Ojea, 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 2017-08-07 09:12:29 Time when the event occurred. UTC/GMT
Updated 2017-08-07 09:28:06 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 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 150 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 18 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.5865 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.37 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 243 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 pr2017219006 Id of event.
Event Code 2017219006 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2017219006, A comma-separated list of event ids that are associated to an event.

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