Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 06-05-2011 and time 05:47:55 (Italy) in region 8 km S Randazzo (CT)

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

  • 06-05-2011 03:47:55 (UTC)
  • 06-05-2011 05:47:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8100, 14.9620 at 28 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
Randazzo CT 8 10900 10900
Maletto CT 9 3920 14820
Bronte CT 12 19172 33992
Santa Domenica Vittoria ME 12 980 34972
Moio Alcantara ME 13 717 35689
Roccella Valdemone ME 14 666 36355
Maniace CT 15 3765 40120
Malvagna ME 15 733 40853
Linguaglossa CT 16 5403 46256
Castiglione di Sicilia CT 16 3215 49471
Milo CT 17 1087 50558
Sant'Alfio CT 18 1582 52140
Zafferana Etnea CT 18 9517 61657
Francavilla di Sicilia ME 19 3945 65602
Piedimonte Etneo CT 19 3963 69565
Adrano CT 20 36122 105687
Ragalna CT 20 3924 109611

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NW of Acireale (52622 inhabitants)
36 Km N of Catania (314555 inhabitants)
67 Km SW of Messina (238439 inhabitants)
69 Km SW of Reggio di Calabria (183035 inhabitants)
87 Km E of Caltanissetta (63360 inhabitants)
88 Km NW of Siracusa (122291 inhabitants)
100 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
03:47:55		 37.81 14.962 28 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1207789
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-05-06 03:47:55 ± 0.26
Latitude 37.8100 ± 0.0099
Longitude 14.9620 ± 0.0125
Depth (km) 28 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1207789

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1141
Semi-minor axis of confidence ellipse (meter) 485
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 134
Circular confidence region, given by single value of horizontal uncertainty (meter) 1555.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 25
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) 0.56657
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 12
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 1207789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:39:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MILZ.HHN. 2011-05-06T03:48:14.11 0.6 undecidable manual Sg 25 56.2992 0.382 44
IV.HCRL.HHN. 2011-05-06T03:48:13.82 0.6 undecidable manual Sg 174 58.7967 -0.512 42
IV.MPNC.HHZ. 2011-05-06T03:48:12.58 0.6 undecidable manual Sg 42 50.616 0.27 45
.MCSR.HHE. 2011-05-06T03:48:09.31 0.6 undecidable manual Sg 40 36.741 0.299 46
IV.GALF.HHZ. 2011-05-06T03:48:09.61 0.3 undecidable manual Sg 253 36.4413 0.677 63
IV.NOV.HHZ. 2011-05-06T03:48:07.09 0.3 undecidable manual Sg 32 28.6491 -0.157 74
IV.MMME.HHZ. 2011-05-06T03:48:07.91 0.3 undecidable manual Sg 61 29.1486 0.563 66
IV.IVPL.HHZ. 2011-05-06T03:48:07.28 0.3 undecidable manual Pg 1 62.8926 0.35 65
IV.MNO.SHZ. 2011-05-06T03:48:06.50 0.6 undecidable manual Sg 300 26.9508 -0.414 46
IV.MILZ.HHN. 2011-05-06T03:48:06.04 0.3 undecidable manual Pg 25 56.2992 0.057 70
.MUCR.HHZ. 2011-05-06T03:48:06.61 0.6 undecidable manual Sg 343 26.9508 -0.308 47
IV.HCRL.HHN. 2011-05-06T03:48:05.62 0.1 undecidable manual Pg 174 58.7967 -0.711 79
IV.MPNC.HHZ. 2011-05-06T03:48:05.20 0.3 undecidable manual Pg 42 50.616 0.036 71
IV.CAGR.HHE. 2011-05-06T03:48:05.49 0.3 undecidable manual Pg 243 45.621 1.033 53
IV.GALF.HHZ. 2011-05-06T03:48:03.05 0.1 positive manual Pg 253 36.4413 -0.165 96
.MCSR.HHE. 2011-05-06T03:48:03.15 0.1 positive manual Pg 40 36.741 -0.109 98
IV.ECNV.HHE. 2011-05-06T03:48:03.33 0.3 undecidable manual Pg 223 32.3454 0.637 64
IV.MMME.HHZ. 2011-05-06T03:48:02.25 0.1 positive manual Pg 61 29.1486 -0.049 100
IV.NOV.HHZ. 2011-05-06T03:48:02.00 0.1 positive manual Pg 32 28.6491 -0.24 96
.MUCR.HHZ. 2011-05-06T03:48:01.52 0.1 undecidable manual Pg 343 26.9508 -0.531 90
IV.MNO.SHZ. 2011-05-06T03:48:01.75 0.1 undecidable manual Pg 300 26.9508 -0.298 95
IV.FIR.HHN. 2011-05-06T03:48:00.13 10.0 undecidable manual Pg 0 0 0
IV.CMPR.HHE. 2011-05-06T03:47:54.99 10.0 undecidable manual Pg 0 0 0
IV.PESA.HHN. 2011-05-06T03:47:46.54 10.0 undecidable manual Pg 0 0 0
IV.FIU.EHZ. 2011-05-06T03:47:43.88 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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