Earthquake with magnitude of Md 2.3 on date 13-03-1991 and time 16:35:06 (UTC) in region Costa Siciliana nord orientale (Messina)

A magnitude Md 2.3 earthquake occured in region: Costa Siciliana nord orientale (Messina), on

  • 13-03-1991 16:35:06 (UTC)
  • 13-03-1991 17:35:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.2010, 14.8550 at 8 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
Piraino ME 4 3962 3962
Gioiosa Marea ME 5 7074 11036
Brolo ME 5 5783 16819
Sant'Angelo di Brolo ME 10 3090 19909
Ficarra ME 10 1469 21378
Naso ME 10 3813 25191
Capo d'Orlando ME 11 13254 38445
Montagnareale ME 11 1615 40060
Patti ME 12 13431 53491
Sinagra ME 13 2705 56196
Castell'Umberto ME 14 3128 59324
Librizzi ME 15 1660 60984
Mirto ME 16 974 61958
San Salvatore di Fitalia ME 16 1319 63277
Capri Leone ME 17 4515 67792
Raccuja ME 17 1041 68833
Frazzanò ME 17 711 69544
Ucria ME 17 1058 70602
Tortorici ME 19 6435 77037
San Piero Patti ME 19 2915 79952
Torrenova ME 20 4386 84338
San Marco d'Alunzio ME 20 1996 86334
Oliveri ME 20 2181 88515
Galati Mamertino ME 20 2627 91142

Municipalities with at least 50000 inhabitants

An earthquake occurred to
61 Km W of Messina (238439 inhabitants)
70 Km W of Reggio di Calabria (183035 inhabitants)
71 Km NW of Acireale (52622 inhabitants)
80 Km N of Catania (314555 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 2.3 1991-03-13
16:35:06
38.201 14.855 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 137479
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-03-13 16:35:06 ± 0.919
Latitude 38.2010 ± 0.0529
Longitude 14.8550 ± 0.0344
Depth (km) 8 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 137479

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) 6608.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 187
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00259
Epicentral distance of station farthest from the epicenter (degree) 0.01279
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 137479
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:08:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CZI.Z. 1991-03-13T16:35:34.80 10.0 undecidable manual PN! 43 1.4208 2.54 0
--.RI2.Z. 1991-03-13T16:35:31.70 10.0 undecidable manual PN 79 1.2987 1.2 0.5
--.GIB.Z. 1991-03-13T16:35:29.40 10.0 undecidable manual SG 252 0.6882 -1.22 0.2
--.FAI.Z. 1991-03-13T16:35:29.80 10.0 undecidable manual PN 225 1.3098 -1.02 0.7
--.MEU.Z. 1991-03-13T16:35:28.20 10.0 positive manual PN 180 1.0878 0.54 2.5
--.FE2.Z. 1991-03-13T16:35:24.80 10.0 negative manual PG 99 0.9768 -1.78 0.2
--.DR2.Z. 1991-03-13T16:35:22.70 10.0 undecidable manual PG! 61 0.9435 -2.62 0
--.GA2.Z. 1991-03-13T16:35:22.00 10.0 negative manual PG 92 0.7659 0.14 3.3
--.GIB.Z. 1991-03-13T16:35:21.00 10.0 undecidable manual PG 252 0.6882 0.64 1.3
--.MNO.Z. 1991-03-13T16:35:18.50 10.0 undecidable manual SG 205 0.2886 0.44 0.6
--.MNO.Z. 1991-03-13T16:35:13.00 10.0 undecidable manual PG 205 0.2886 -0.1 1.7
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