Earthquake with magnitude of Md 2.1 on date 20-10-1992 and time 21:17:10 (UTC) in region Tirreno Meridionale (MARE)

A magnitude Md 2.1 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 20-10-1992 21:17:10 (UTC)
  • 20-10-1992 22:17:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.4360, 15.2740 at 118 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of Messina (238439 inhabitants)
49 Km NW of Reggio di Calabria (183035 inhabitants)
92 Km N of Acireale (52622 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 2.1
ML-VAX 1.8
1992-10-20
21:17:10
38.436 15.274 118 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 175059
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-10-20 21:17:10 ± 0.578
Latitude 38.4360 ± 0.0531
Longitude 15.2740 ± 0.0676
Depth (km) 118 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 175059

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 8339.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 274
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.00874
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 175059
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:43:56

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 175059
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.GRI.Z. 1992-10-20T21:17:47.97 10.0 undecidable manual S 66 0.9657 -0.39 0.2
--.SOI.Z. 1992-10-20T21:17:43.89 10.0 undecidable manual S 120 0.7104 -0.37 0.3
--.MO9.Z. 1992-10-20T21:17:42.90 10.0 undecidable manual S 142 0.5439 0.01 0.6
--.GMB.Z. 1992-10-20T21:17:42.62 10.0 undecidable manual S 121 0.4995 0.91 0
--.ATN.Z. 1992-10-20T21:17:39.53 10.0 undecidable manual S 152 0.3108 -0.34 0.3
--.GRI.Z. 1992-10-20T21:17:32.61 10.0 undecidable manual P 66 0.9657 0.18 0.9
--.SOI.Z. 1992-10-20T21:17:29.70 10.0 positive manual P 120 0.7104 -0.36 1.5
--.GMB.Z. 1992-10-20T21:17:29.20 10.0 positive manual P 121 0.4995 0.44 1.2
--.MO9.Z. 1992-10-20T21:17:28.90 10.0 positive manual P 142 0.5439 0.09 2.7
--.ATN.Z. 1992-10-20T21:17:27.30 10.0 positive manual P 152 0.3108 -0.23 2.2
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download