Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 06-05-2011 and time 17:46:23 (Italy) in region 8 km E Maletto (CT)

A magnitude ML 2.0 earthquake occured in region: 8 km E Maletto (CT), on

  • 06-05-2011 15:46:23 (UTC)
  • 06-05-2011 17:46:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8010, 14.9500 at 31 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 8 3920 3920
Randazzo CT 9 10900 14820
Bronte CT 10 19172 33992
Santa Domenica Vittoria ME 13 980 34972
Moio Alcantara ME 14 717 35689
Maniace CT 14 3765 39454
Roccella Valdemone ME 16 666 40120
Malvagna ME 16 733 40853
Milo CT 17 1087 41940
Linguaglossa CT 18 5403 47343
Castiglione di Sicilia CT 18 3215 50558
Zafferana Etnea CT 18 9517 60075
Sant'Alfio CT 18 1582 61657
Adrano CT 19 36122 97779
Ragalna CT 19 3924 101703
Biancavilla CT 19 24007 125710
Francavilla di Sicilia ME 20 3945 129655

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NW of Acireale (52622 inhabitants)
35 Km NW of Catania (314555 inhabitants)
69 Km SW of Messina (238439 inhabitants)
70 Km SW of Reggio di Calabria (183035 inhabitants)
85 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 		ML 2.0 2011-05-06
15:46:23		 37.801 14.95 31 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1208249
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-05-06 15:46:23 ± 0.23
Latitude 37.8010 ± 0.0063
Longitude 14.9500 ± 0.0114
Depth (km) 31 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1208249

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 978
Semi-minor axis of confidence ellipse (meter) 439
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 113
Circular confidence region, given by single value of horizontal uncertainty (meter) 1220.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.65021
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 11
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1208249
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:39:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHE. 2011-05-06T15:46:46.59 0.6 undecidable manual Sg 171 72.1722 0.182 45
IV.HCRL.HHN. 2011-05-06T15:46:42.81 0.6 undecidable manual Sg 173 57.8976 -0.03 47
IV.MPNC.HHE. 2011-05-06T15:46:41.84 0.6 undecidable manual Sg 42 52.1034 0.411 44
IV.HLNI.HHN. 2011-05-06T15:46:40.69 0.6 undecidable manual Sg 188 50.616 -0.392 44
BA.PZUN.HHN. 2011-05-06T15:46:40.72 10.0 undecidable manual Pg 0 0 0
IV.GALF.HHZ. 2011-05-06T15:46:38.77 1.0 undecidable manual Sg 254 35.1426 1.222 17
.MCSR.HHZ. 2011-05-06T15:46:38.35 0.6 undecidable manual Sg 40 38.1285 0.142 48
IV.SSY.HHE. 2011-05-06T15:46:36.79 0.3 undecidable manual Pg 171 72.1722 -0.078 68
IV.NOV.HHZ. 2011-05-06T15:46:36.22 0.6 undecidable manual Sg 33 30.0477 -0.276 47
IV.MMME.HHZ. 2011-05-06T15:46:36.74 0.6 undecidable manual Sg 61 30.4473 0.15 49
.MUCR.HHZ. 2011-05-06T15:46:35.56 0.6 undecidable manual Sg 346 27.75 -0.486 45
IV.MNO.SHZ. 2011-05-06T15:46:35.45 0.6 undecidable manual Sg 303 26.6511 -0.392 46
IV.HCRL.HHN. 2011-05-06T15:46:34.71 0.3 undecidable manual Pg 173 57.8976 -0.095 70
IV.MPNC.HHE. 2011-05-06T15:46:34.21 0.1 undecidable manual Pg 42 52.1034 0.219 92
IV.HLNI.HHN. 2011-05-06T15:46:33.49 0.1 undecidable manual Pg 188 50.616 -0.304 91
IV.ECNV.HHZ. 2011-05-06T15:46:32.48 0.3 undecidable manual Pg 223 30.8469 1.238 49
IV.GALF.HHZ. 2011-05-06T15:46:32.04 0.1 undecidable manual Pg 254 35.1426 0.288 94
.MCSR.HHZ. 2011-05-06T15:46:32.14 0.1 undecidable manual Pg 40 38.1285 0.008 99
IV.NOV.HHZ. 2011-05-06T15:46:31.00 0.1 undecidable manual Pg 33 30.0477 -0.143 97
IV.MMME.HHZ. 2011-05-06T15:46:31.19 0.1 undecidable manual Pg 61 30.4473 -0.006 100
.MUCR.HHZ. 2011-05-06T15:46:30.51 0.1 undecidable manual Pg 346 27.75 -0.371 93
IV.MNO.SHZ. 2011-05-06T15:46:30.64 0.1 undecidable manual Pg 303 26.6511 -0.125 98
IV.VVLD.HHZ. 2011-05-06T15:46:26.89 10.0 undecidable manual Pg 0 0 0
IV.POFI.HHZ. 2011-05-06T15:46:25.72 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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