Minor earthquake, 3.25 mag was detected near Decatur in Tennessee

A minor earthquake magnitude 3.25 (ml/mb) strikes 11 kilometers (7 miles) from Decatur in Tennessee on Wednesday. Global time and date of event 12/12/18 / 2018-12-12 09:27:08 / December 12, 2018 @ 9:27 am UTC/GMT. Unique identifier: se60247876. Ids that are associated to the event: se60247876, us2000isqb. The temblor was reported at 04:27:08 / 4:27 am (local time epicenter). Exact location, longitude -84.75° West, latitude 35.6119995° North, depth = 6.78 km. The earthquake was roughly at a depth of 6.78 km (4 miles).

Country/countries that might be effected, United States (c. 310 233 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Chattanooga, East Ridge, Clinton. Earthquake epicenter was 81 km (50 miles) from Chattanooga (c. 167 700 pop), 76 km (47 miles) from East Chattanooga (c. 154 000 pop), 52 km (32 miles) from Cleveland (c. 41 300 pop), 62 km (38 miles) from Oak Ridge (c. 29 300 pop), 72 km (45 miles) from Maryville (c. 27 500 pop).

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

Questions or comments?

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. 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: 11 km NNE of Decatur, Tennessee.

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Parameter	Value	Description
Magnitude	3.25 mb	The magnitude for the event.
Longitude	-84.75° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	35.6119995° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	6.78 km	Depth of the event in kilometers.
Place	11km NNE of Decatur, Tennessee	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2018-12-12 09:27:08	Time when the event occurred. UTC/GMT
Updated	2018-12-12 09:41:51	Time when the event was most recently updated. UTC/GMT
Timezone offset	-300	Timezone offset from UTC in minutes at the event epicenter.
Felt	284	The total number of felt reports
CDI	5.3	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	313	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	se	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,se,us,	A comma-separated list of network contributors.
Number of Stations Used	14	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.209	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.32 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	111	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	se60247876	Id of event.
Event Code	60247876	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,se60247876,us2000isqb,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.25 mag was detected near Decatur in Tennessee

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