Earthquake with magnitude of Md 2.1 on date 11-06-1991 and time 01:03:18 (UTC) in region Costa Siciliana nord orientale (Messina)

A magnitude Md 2.1 earthquake occured in region: Costa Siciliana nord orientale (Messina), on

  • 11-06-1991 01:03:18 (UTC)
  • 11-06-1991 03:03:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.3910, 15.4080 at 124 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Villafranca Tirrena ME 17 8584 8584
Spadafora ME 19 5021 13605
Venetico ME 19 3911 17516

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NW of Messina (238439 inhabitants)
37 Km NW of Reggio di Calabria (183035 inhabitants)
89 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 1.5
1991-06-11
01:03:18
38.391 15.408 124 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 143199
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-06-11 01:03:18 ± 0.765
Latitude 38.3910 ± 0.0290
Longitude 15.4080 ± 0.0433
Depth (km) 124 ± 7 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 143199

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) 4960.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
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) 0.00210
Epicentral distance of station farthest from the epicenter (degree) 0.01570
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 143199
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:13:39

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 143199
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
--.TDS.Z. 1991-06-11T01:04:06.00 10.0 undecidable manual S 29 1.4541 -0.27 0.3
--.GRI.Z. 1991-06-11T01:03:56.19 10.0 undecidable manual S 61 0.8991 0.06 0.5
--.FE2.Z. 1991-06-11T01:03:53.50 10.0 undecidable manual S 123 0.6327 1.11 0
--.MO9.Z. 1991-06-11T01:03:51.70 10.0 undecidable manual S 149 0.444 0.81 0.1
--.MGR.Z. 1991-06-11T01:03:50.49 10.0 undecidable manual P 3 1.7427 0.89 0.2
--.ATN.Z. 1991-06-11T01:03:48.00 10.0 undecidable manual S 169 0.2331 -0.67 0.2
--.TDS.Z. 1991-06-11T01:03:46.39 10.0 undecidable manual P 29 1.4541 0.19 0.9
--.SE2.Z. 1991-06-11T01:03:42.32 10.0 undecidable manual P 58 1.1877 -0.98 0.2
--.GRI.Z. 1991-06-11T01:03:40.56 10.0 undecidable manual P 61 0.8991 0.22 1.2
--.PA2.Z. 1991-06-11T01:03:39.66 10.0 undecidable manual P 84 0.8103 0.05 1.4
--.FE2.Z. 1991-06-11T01:03:38.16 10.0 undecidable manual P 123 0.6327 -0.02 2.9
--.SA1.Z. 1991-06-11T01:03:37.22 10.0 undecidable manual P 291 0.4773 0.08 1.5
--.GA2.Z. 1991-06-11T01:03:37.40 10.0 undecidable manual P 123 0.3996 0.35 2.2
--.MO9.Z. 1991-06-11T01:03:36.81 10.0 undecidable manual P 149 0.444 -0.15 1.4
--.DR2.Z. 1991-06-11T01:03:36.80 10.0 undecidable manual P 58 0.4773 -0.34 2.2
--.ATN.Z. 1991-06-11T01:03:35.50 10.0 undecidable manual P 169 0.2331 -0.53 0.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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