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Minor earthquake: M3.34 quake has struck near Emajagua in Puerto Rico


Earthquake location 17.8728S, -65.7091WA minor earthquake magnitude 3.34 (ml/mb) has occurred on Friday, 23 kilometers (14 miles) from Emajagua in Puerto Rico. Event id: pr2021015017. Ids that are associated to the earthquake: pr2021015017. The temblor was detected at 19:53:40 / 7:53 pm (local time epicenter). The epicenter of the earthquake was roughly 4 km (2 miles) below the earth’s surface. Exact location, longitude -65.7091° West, latitude 17.8728° North, depth = 4 km. Date and time of earthquake in UTC/GMT: 15/01/21 / 2021-01-15 19:53:40 / January 15, 2021 @ 7:53 pm.

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Levittown, Candelaria Arenas, Toa Alta. Nearby country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected). Earthquake epicenter was 78 km (49 miles) from San Juan (c. 418 100 pop), 75 km (47 miles) from Bayamón (c. 203 500 pop), 62 km (39 miles) from Carolina (c. 170 400 pop), 54 km (33 miles) from Caguas (c. 86 800 pop), 69 km (43 miles) from Guaynabo (c. 81 400 pop).

In the past 24 hours, there have been one, in the last 10 days six, in the past 30 days thirteen and in the last 365 days four hundred and thirty-three earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor earthquakes in the world.

Did you feel anything?

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. 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: 23 km SE of Emajagua, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.34 mb The magnitude for the event.
Longitude -65.7091° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.8728° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 4 km Depth of the event in kilometers.
Place 23 km SE of Emajagua, 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 2021-01-15 19:53:40 Time when the event occurred. UTC/GMT
Updated 2021-01-15 21:08:57 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 172 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 0.2736 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.53 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 pr2021015017 Id of event.
Event Code 2021015017 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2021015017, A comma-separated list of event ids that are associated to an event.

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