Earthquake with magnitude of ML 1.6 on date 30-08-2011 and time 21:31:24 (Italy) in region 7 km SW Licodia Eubea (CT)

A magnitude ML 1.6 earthquake occured in region: 7 km SW Licodia Eubea (CT), on

  • 30-08-2011 19:31:24 (UTC)
  • 30-08-2011 21:31:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.1010, 14.6700 at 5 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
Licodia Eubea CT 7 3081 3081
Chiaramonte Gulfi RG 8 8238 11319
Monterosso Almo RG 8 3032 14351
Mazzarrone CT 10 4078 18429
Vizzini CT 10 6241 24670
Giarratana RG 12 3048 27718
Grammichele CT 13 13418 41136
Buccheri SR 16 1999 43135
Acate RG 18 10954 54089
Comiso RG 18 30156 84245
Mineo CT 18 5159 89404
Buscemi SR 19 1051 90455

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km N of Ragusa (73313 inhabitants)
20 Km NE of Vittoria (63339 inhabitants)
28 Km N of Modica (54633 inhabitants)
37 Km E of Gela (75827 inhabitants)
56 Km W of Siracusa (122291 inhabitants)
58 Km SW of Catania (314555 inhabitants)
69 Km SE of Caltanissetta (63360 inhabitants)
72 Km SW of Acireale (52622 inhabitants)
99 Km E of Agrigento (59770 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 1.9
ML 1.6
2011-08-30
19:31:24
37.101 14.67 5 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1279139
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-08-30 19:31:24 ± 0.36
Latitude 37.1010 ± 0.0099
Longitude 14.6700 ± 0.0124
Depth (km) 5 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1279139

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1140
Semi-minor axis of confidence ellipse (meter) 309
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 232
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) 149
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.61
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.32645
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 1279139
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:17:16

Md:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1279139
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:17:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MESG.HHN. 2011-08-30T19:31:53.43 10.0 undecidable manual Sg 0 0 0
IV.MESG.HHN. 2011-08-30T19:31:48.41 10.0 undecidable manual Pg 0 0 0
IV.SSY.HHN. 2011-08-30T19:31:37.74 0.3 undecidable manual Sg 80 36.2415 0.8 61
IV.ILLI.HHZ. 2011-08-30T19:31:36.43 10.0 undecidable manual Pg 0 0 0
IV.RAFF.HHE. 2011-08-30T19:31:35.76 0.3 undecidable manual Sg 296 30.3474 0.848 60
IV.HLNI.HHN. 2011-08-30T19:31:35.94 0.3 undecidable manual Sg 33 32.745 0.198 73
IV.HMDC.HHN. 2011-08-30T19:31:31.04 0.3 undecidable manual Sg 147 18.6702 0.083 77
IV.SSY.HHN. 2011-08-30T19:31:31.59 0.3 undecidable manual Pg 80 36.2415 0.029 76
IV.RAFF.HHE. 2011-08-30T19:31:30.04 0.3 undecidable manual Pg 296 30.3474 -0.352 71
IV.HLNI.HHN. 2011-08-30T19:31:30.12 0.3 undecidable manual Pg 33 32.745 -0.753 62
IV.HMDC.HHN. 2011-08-30T19:31:27.88 0.3 undecidable manual Pg 147 18.6702 -0.226 75
IV.HVZN.HHZ. 2011-08-30T19:31:27.94 0.3 undecidable manual Sg 25 9.4794 -0.063 79
IV.HVZN.HHZ. 2011-08-30T19:31:26.11 0.1 undecidable manual Pg 25 9.4794 -0.293 100
IV.MTGR.SHZ. 2011-08-30T19:31:10.34 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