Earthquake with magnitude of Md 2.0 on date 22-10-1991 and time 21:11:21 (UTC) in region 2 km E Alcara li Fusi (ME)

A magnitude Md 2.0 earthquake occured in region: 2 km E Alcara li Fusi (ME), on

  • 22-10-1991 21:11:21 (UTC)
  • 22-10-1991 22:11:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.0150, 14.7210 at 10 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
Alcara li Fusi ME 2 1980 1980
Longi ME 3 1473 3453
Galati Mamertino ME 5 2627 6080
Militello Rosmarino ME 5 1324 7404
San Marco d'Alunzio ME 7 1996 9400
Frazzanò ME 7 711 10111
San Salvatore di Fitalia ME 8 1319 11430
Mirto ME 8 974 12404
Tortorici ME 9 6435 18839
Torrenova ME 9 4386 23225
Sant'Agata di Militello ME 10 12624 35849
Capri Leone ME 11 4515 40364
San Fratello ME 11 3707 44071
Castell'Umberto ME 11 3128 47199
Acquedolci ME 13 5744 52943
Naso ME 13 3813 56756
Sinagra ME 14 2705 59461
Ficarra ME 14 1469 60930
Ucria ME 15 1058 61988
Capo d'Orlando ME 16 13254 75242
Floresta ME 17 485 75727
Raccuja ME 17 1041 76768
Sant'Angelo di Brolo ME 18 3090 79858
Brolo ME 19 5783 85641
Maniace CT 19 3765 89406
San Teodoro ME 19 1403 90809
Cesarò ME 19 2439 93248

Municipalities with at least 50000 inhabitants

An earthquake occurred to
59 Km NW of Acireale (52622 inhabitants)
65 Km NW of Catania (314555 inhabitants)
76 Km W of Messina (238439 inhabitants)
82 Km W of Reggio di Calabria (183035 inhabitants)
82 Km NE of Caltanissetta (63360 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 2.0
ML-VAX 1.8
1991-10-22
21:11:21
38.015 14.721 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 151469
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-10-22 21:11:21 ± 0.177
Latitude 38.0150 ± 0.0145
Longitude 14.7210 ± 0.0107
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 151469

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) 1859.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 168
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00073
Epicentral distance of station farthest from the epicenter (degree) 0.00688
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 151469
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:21:24

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 151469
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
--.MO9.Z. 1991-10-22T21:11:47.90 10.0 undecidable manual SG 90 0.7659 -0.54 0.1
--.ATN.Z. 1991-10-22T21:11:42.48 10.0 undecidable manual SG 75 0.5883 -0.65 0.1
--.GIB.Z. 1991-10-22T21:11:41.34 10.0 undecidable manual SG 267 0.5439 -0.07 0.6
--.MO9.Z. 1991-10-22T21:11:37.38 10.0 undecidable manual PG 90 0.7659 0.15 1.2
--.ATN.Z. 1991-10-22T21:11:34.67 10.0 undecidable manual PG 75 0.5883 0.51 0.4
--.GIB.Z. 1991-10-22T21:11:33.50 10.0 undecidable manual PG 267 0.5439 -0.13 1.5
--.MNO.Z. 1991-10-22T21:11:26.79 10.0 undecidable manual SG 194 0.0777 0.09 0.7
--.MNO.Z. 1991-10-22T21:11:24.67 10.0 positive manual PG 194 0.0777 -0.01 3.5
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