Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 31-03-2011 and time 13:26:36 (Italy) in region Costa Siciliana nord orientale (Messina)

A magnitude ML 2.0 earthquake occured in region: Costa Siciliana nord orientale (Messina), on

  • 31-03-2011 11:26:36 (UTC)
  • 31-03-2011 13:26:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.2620, 15.1430 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Milazzo ME 10 31646 31646
Merì ME 14 2338 33984
Terme Vigliatore ME 14 7395 41379
Barcellona Pozzo di Gotto ME 14 41583 82962
San Filippo del Mela ME 15 7115 90077
Oliveri ME 17 2181 92258
Pace del Mela ME 17 6239 98497
Falcone ME 17 2808 101305
Rodì Milici ME 17 2056 103361
Furnari ME 17 3784 107145
Santa Lucia del Mela ME 18 4650 111795
Condrò ME 19 493 112288
Gualtieri Sicaminò ME 19 1807 114095
Castroreale ME 19 2504 116599
Mazzarrà Sant'Andrea ME 19 1531 118130
Torregrotta ME 20 7431 125561

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km W of Messina (238439 inhabitants)
47 Km W of Reggio di Calabria (183035 inhabitants)
72 Km N of Acireale (52622 inhabitants)
84 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 2.0
ML 2.0 		2011-03-31
11:26:36		 38.262 15.143 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1189509
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-03-31 11:26:36 ± 0.09
Latitude 38.2620 ± 0.0045
Longitude 15.1430 ± 0.0069
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1189509

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 570
Semi-minor axis of confidence ellipse (meter) 434
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 781.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.74014
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1189509
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:14:31

Md:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 1189509
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:14:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.CEL.HHN. 2011-03-31T11:27:38.88 10.0 undecidable manual Sg 0 0 0
IV.MNO.SHN. 2011-03-31T11:27:28.10 10.0 undecidable manual Sg 0 0 0
IV.IACL.HHE. 2011-03-31T11:27:04.53 10.0 undecidable manual Sg 0 0 0
MN.CEL.HHN. 2011-03-31T11:26:57.11 10.0 undecidable manual Pg 0 0 0
IV.IACL.HHE. 2011-03-31T11:26:55.45 10.0 undecidable manual Pg 0 0 0
IV.MNO.SHN. 2011-03-31T11:26:54.70 10.0 undecidable manual Pg 0 0 0
IV.JOPP.HHE. 2011-03-31T11:26:53.56 10.0 undecidable manual Pg 0 0 0
IV.SOI.EHZ. 2011-03-31T11:26:50.65 0.6 undecidable manual Pg 104 82.1511 0.234 43
IV.MSRU.HHZ. 2011-03-31T11:26:47.46 0.6 undecidable manual Sg 89 31.8459 0.052 49
IV.IFIL.EHN. 2011-03-31T11:26:46.57 0.3 undecidable manual Pg 304 59.6958 -0.379 65
IV.MSCL.HHZ. 2011-03-31T11:26:46.37 0.3 undecidable manual Pg 93 56.3991 -0.08 70
.MCSR.HHE. 2011-03-31T11:26:45.05 0.6 undecidable manual Sg 161 23.1546 0.185 48
IV.NOV.HHZ. 2011-03-31T11:26:45.55 0.6 undecidable manual Sg 181 25.9518 -0.222 48
IV.MPNC.HHZ. 2011-03-31T11:26:44.73 0.6 undecidable manual Sg 125 22.2555 0.135 49
IV.MMME.HHE. 2011-03-31T11:26:43.62 0.3 undecidable manual Pg 165 37.5291 0.091 72
IV.ILLI.HHZ. 2011-03-31T11:26:42.33 0.3 undecidable manual Pg 320 26.5512 0.513 67
IV.MSRU.HHZ. 2011-03-31T11:26:42.58 0.1 undecidable manual Pg 89 31.8459 -0.075 98
IV.NOV.HHZ. 2011-03-31T11:26:41.57 0.3 undecidable manual Pg 181 25.9518 -0.138 73
IV.MPNC.HHZ. 2011-03-31T11:26:41.19 0.1 undecidable manual Pg 125 22.2555 0.162 98
.MCSR.HHE. 2011-03-31T11:26:41.22 0.1 undecidable manual Pg 161 23.1546 0.034 100
IV.MILZ.HHN. 2011-03-31T11:26:40.30 0.3 undecidable manual Sg 82 7.7811 -0.163 75
IV.MILZ.HHN. 2011-03-31T11:26:38.46 0.1 undecidable manual Pg 82 7.7811 -0.182 100
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
Waveforms Seismic signals in miniseed + resp format Download