Minor earthquake 3.3 mag, 156 km N of San Juan, Puerto Rico

A minor earthquake magnitude 3.3 (ml/mb) strikes 156 km N of San Juan, Puerto Rico (97 miles) on Sunday. The 3.3-magnitude earthquake was detected at 23:40:34 / 11:40 pm (local time epicenter). The earthquake was roughly at a depth of 25 km (16 miles). Exact location of earthquake, -65.8515° West, 19.8563° North, depth 25 km. All ids that are associated to the event: pr15201005. Unique identifier: pr15201005. Exact time and date of event in UTC/GMT: 20/07/15 / 2015-07-20 03:40:34 / July 20, 2015 @ 3:40 am.

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been nine, in the last 10 days eighteen, in the past 30 days twenty-one and in the last 365 days two hundred and seventeen earthquakes of magnitude 3.0 or greater that has occurred nearby. Each year there are an estimated 130,000 minor earthquakes in the world.

How would you describe the shaking?

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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 156 km N of San Juan, Puerto Rico.

Puerto Rico San Juan

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Parameter	Value	Description
Magnitude	3.3 mb	The magnitude for the event.
Longitude	-65.8515° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	19.8563° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	25 km	Depth of the event in kilometers.
Place	156km N of San Juan, 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	2015-07-20 03:40:34	Time when the event occurred. UTC/GMT
Updated	2015-07-20 11:07:04	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	168	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	3	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	1.57474669	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.15 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	338.4	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	pr15201005	Id of event.
Event Code	15201005	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,pr15201005,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake 3.3 mag, 156 km N of San Juan, Puerto Rico

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