Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 07-05-2011 and time 04:06:31 (Italy) in region 7 km SE Maletto (CT)

A magnitude ML 2.0 earthquake occured in region: 7 km SE Maletto (CT), on

  • 07-05-2011 02:06:31 (UTC)
  • 07-05-2011 04:06:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8000, 14.9400 at 33 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
Maletto CT 7 3920 3920
Randazzo CT 9 10900 14820
Bronte CT 9 19172 33992
Santa Domenica Vittoria ME 13 980 34972
Maniace CT 14 3765 38737
Moio Alcantara ME 15 717 39454
Roccella Valdemone ME 16 666 40120
Malvagna ME 17 733 40853
Milo CT 18 1087 41940
Adrano CT 18 36122 78062
Zafferana Etnea CT 19 9517 87579
Biancavilla CT 19 24007 111586
Linguaglossa CT 19 5403 116989
Castiglione di Sicilia CT 19 3215 120204
Ragalna CT 19 3924 124128
Sant'Alfio CT 19 1582 125710

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of Acireale (52622 inhabitants)
35 Km NW of Catania (314555 inhabitants)
70 Km SW of Messina (238439 inhabitants)
71 Km SW of Reggio di Calabria (183035 inhabitants)
84 Km E of Caltanissetta (63360 inhabitants)
88 Km NW of Siracusa (122291 inhabitants)
99 Km N of Ragusa (73313 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 2.2
ML 2.0 		2011-05-07
02:06:31		 37.8 14.94 33 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1208699
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-05-07 02:06:31 ± 0.1
Latitude 37.8000 ± 0.0045
Longitude 14.9400 ± 0.0080
Depth (km) 33 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1208699

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 658
Semi-minor axis of confidence ellipse (meter) 204
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 104
Circular confidence region, given by single value of horizontal uncertainty (meter) 860.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 37
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.46
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.86515
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1208699
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:40:28

Md:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1208699
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:40:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
NI.VINO.HHZ. 2011-05-07T02:07:16.54 10.0 undecidable manual Pg 0 0 0
IV.SOI.EHE. 2011-05-07T02:07:05.75 10.0 undecidable manual Sg 0 0 0
IV.BSSO.HHE. 2011-05-07T02:07:01.09 10.0 undecidable manual Pg 0 0 0
IV.HAVL.HHN. 2011-05-07T02:06:59.82 0.3 undecidable manual Sg 170 94.5387 -0.062 68
IV.GIB.HHE. 2011-05-07T02:06:59.68 10.0 undecidable manual Pg 0 0 0
IV.SOI.EHE. 2011-05-07T02:06:57.83 10.0 undecidable manual Pg 0 0 0
IV.HVZN.HHE. 2011-05-07T02:06:54.64 0.6 undecidable manual Sg 196 71.6727 0.546 42
IV.SSY.HHZ. 2011-05-07T02:06:54.61 0.3 undecidable manual Sg 171 72.1722 0.396 66
IV.AGST.EHN. 2011-05-07T02:06:52.63 0.3 undecidable manual Sg 157 65.3901 0.125 71
IV.HAGA.HHZ. 2011-05-07T02:06:51.33 0.3 undecidable manual Sg 162 60.1953 0.101 72
IV.HCRL.HHN. 2011-05-07T02:06:50.66 0.3 undecidable manual Sg 172 57.8976 -0.018 74
IV.MPAZ.HHN. 2011-05-07T02:06:49.33 10.0 undecidable manual Pg 0 0 0
IV.MPNC.HHZ. 2011-05-07T02:06:49.90 0.3 undecidable manual Sg 43 52.7028 0.453 68
IV.IACL.HHN. 2011-05-07T02:06:48.05 0.3 undecidable manual Pg 328 96.0261 -0.001 68
IV.HLNI.HHE. 2011-05-07T02:06:48.59 0.3 undecidable manual Sg 187 50.4162 -0.304 70
IV.HAVL.HHN. 2011-05-07T02:06:47.33 0.6 undecidable manual Pg 170 94.5387 -0.54 41
IV.HMDC.HHN. 2011-05-07T02:06:47.71 0.3 undecidable manual Pg 188 94.239 -0.125 67
IV.T0104.HHN. 2011-05-07T02:06:46.65 10.0 undecidable manual Pg 0 0 0
.MCSR.HHE. 2011-05-07T02:06:46.15 0.3 undecidable manual Sg 41 38.8278 -0.124 74
IV.RAFF.HHE. 2011-05-07T02:06:46.44 0.3 undecidable manual Pg 219 81.7515 0.445 64
IV.IFIL.EHZ. 2011-05-07T02:06:46.93 0.6 undecidable manual Pg 340 90.5427 -0.368 43
IV.PLLN.SHE. 2011-05-07T02:06:45.77 0.6 undecidable manual Pg 287 72.9714 1.06 34
IV.MMME.HHZ. 2011-05-07T02:06:45.10 0.3 undecidable manual Sg 61 31.3464 0.378 71
IV.GALF.HHZ. 2011-05-07T02:06:45.90 0.6 undecidable manual Sg 253 34.2435 0.598 44
IV.MSRU.HHE. 2011-05-07T02:06:45.06 0.3 undecidable manual Pg 44 71.5728 0.558 63
IV.SSY.HHZ. 2011-05-07T02:06:44.45 0.3 undecidable manual Pg 171 72.1722 -0.147 70
IV.HVZN.HHE. 2011-05-07T02:06:44.20 0.3 undecidable manual Pg 196 71.6727 -0.328 67
IV.AGST.EHN. 2011-05-07T02:06:43.39 0.3 undecidable manual Pg 157 65.3901 -0.221 70
.MUCR.HHE. 2011-05-07T02:06:43.36 0.6 undecidable manual Sg 348 27.5502 -0.652 44
IV.IVPL.HHZ. 2011-05-07T02:06:43.78 0.3 undecidable manual Pg 3 64.0914 0.352 68
IV.MILZ.HHN. 2011-05-07T02:06:43.12 0.3 undecidable manual Pg 26 58.1973 0.523 66
IV.MNO.SHZ. 2011-05-07T02:06:43.45 0.3 undecidable manual Sg 304 25.9518 -0.261 74
IV.NOV.HHZ. 2011-05-07T02:06:43.93 0.3 undecidable manual Sg 34 30.6471 -0.65 66
IV.MPNC.HHZ. 2011-05-07T02:06:42.08 0.3 undecidable manual Pg 43 52.7028 0.235 71
IV.HAGA.HHZ. 2011-05-07T02:06:42.65 0.3 undecidable manual Pg 162 60.1953 -0.224 70
IV.CAGR.HHZ. 2011-05-07T02:06:42.12 10.0 undecidable manual Pg 0 0 0
IV.HCRL.HHN. 2011-05-07T02:06:42.31 0.3 undecidable manual Pg 172 57.8976 -0.246 70
IV.HLNI.HHE. 2011-05-07T02:06:41.14 0.3 undecidable manual Pg 187 50.4162 -0.386 69
IV.ECNV.HHZ. 2011-05-07T02:06:40.11 0.6 undecidable manual Pg 221 30.1476 1.121 36
IV.MMME.HHZ. 2011-05-07T02:06:39.08 0.3 undecidable manual Pg 61 31.3464 -0.037 77
IV.GALF.HHZ. 2011-05-07T02:06:39.60 0.3 undecidable manual Pg 253 34.2435 0.148 75
.MCSR.HHE. 2011-05-07T02:06:39.93 0.1 undecidable manual Pg 41 38.8278 -0.083 100
IV.NOV.HHZ. 2011-05-07T02:06:38.75 0.3 undecidable manual Pg 34 30.6471 -0.285 73
.MUCR.HHE. 2011-05-07T02:06:38.21 0.1 undecidable manual Pg 348 27.5502 -0.497 93
IV.MNO.SHZ. 2011-05-07T02:06:38.31 0.3 undecidable manual Pg 304 25.9518 -0.223 75
IV.STR3.BHZ. 2011-05-07T02:06:25.94 10.0 undecidable manual Pg 0 0 0
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