Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 20-10-2010 and time 16:24:08 (Italy) in region 6 km N Nicolosi (CT)

A magnitude ML 2.4 earthquake occured in region: 6 km N Nicolosi (CT), on

  • 20-10-2010 14:24:08 (UTC)
  • 20-10-2010 16:24:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6710, 15.0150 at 1 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
Nicolosi CT 6 7463 7463
Pedara CT 7 14102 21565
Ragalna CT 8 3924 25489
Trecastagni CT 8 10910 36399
Zafferana Etnea CT 8 9517 45916
Belpasso CT 9 28108 74024
Viagrande CT 10 8563 82587
Milo CT 11 1087 83674
San Pietro Clarenza CT 11 7743 91417
Santa Venerina CT 11 8592 100009
Mascalucia CT 11 31958 131967
Camporotondo Etneo CT 11 5023 136990
Aci Bonaccorsi CT 12 3524 140514
Tremestieri Etneo CT 12 20589 161103
Aci Sant'Antonio CT 12 17984 179087
San Giovanni la Punta CT 13 23060 202147
Santa Maria di Licodia CT 13 7641 209788
Gravina di Catania CT 13 25838 235626
Biancavilla CT 13 24007 259633
Aci Catena CT 14 29851 289484
Sant'Agata li Battiati CT 14 9479 298963
Valverde CT 14 7840 306803
Sant'Alfio CT 14 1582 308385
San Gregorio di Catania CT 14 11966 320351
Paternò CT 14 48228 368579
Acireale CT 15 52622 421201
Adrano CT 16 36122 457323
Giarre CT 16 27659 484982
Misterbianco CT 17 49410 534392
Aci Castello CT 17 18723 553115
Motta Sant'Anastasia CT 18 12116 565231
Riposto CT 18 14838 580069
Mascali CT 19 14282 594351
Catania CT 20 314555 908906

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km W of Acireale (52622 inhabitants)
20 Km NW of Catania (314555 inhabitants)
72 Km NW of Siracusa (122291 inhabitants)
74 Km SW of Reggio di Calabria (183035 inhabitants)
75 Km SW of Messina (238439 inhabitants)
86 Km E of Caltanissetta (63360 inhabitants)
87 Km N of Ragusa (73313 inhabitants)
91 Km NE of Vittoria (63339 inhabitants)
93 Km N of Modica (54633 inhabitants)
95 Km NE of Gela (75827 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 2.6
ML 2.4 		2010-10-20
14:24:08		 37.671 15.015 1 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1130619
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-10-20 14:24:08 ± 0.58
Latitude 37.6710 ± 0.0297
Longitude 15.0150 ± 0.0284
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1130619

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3632
Semi-minor axis of confidence ellipse (meter) 1947
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 330
Circular confidence region, given by single value of horizontal uncertainty (meter) 4140.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 218
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.97
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41099
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 1130619
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 21:56:36

Md:2.6

Field Value
Value 2.6
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1130619
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 21:56:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SCHR.EHE. 2010-10-20T14:24:30.64 10.0 undecidable manual Pg 0 0 0
IV.HLNI.HHZ. 2010-10-20T14:24:26.70 10.0 undecidable manual Pg 0 0 0
IV.NOV.HHZ. 2010-10-20T14:24:24.53 10.0 undecidable manual Pg 0 0 0
IV.GALF.HHN. 2010-10-20T14:24:23.30 1.0 undecidable manual Sg 277 39.627 1.157 18
IV.CAGR.HHZ. 2010-10-20T14:24:18.26 0.6 undecidable manual Pg 263 45.621 0.742 43
IV.ECNV.HHE. 2010-10-20T14:24:18.46 0.6 undecidable manual Sg 253 27.8499 0.396 50
IV.MMME.HHE. 2010-10-20T14:24:16.02 0.3 undecidable manual Pg 35 36.0417 0.42 74
IV.GALF.HHN. 2010-10-20T14:24:16.30 0.3 undecidable manual Pg 277 39.627 -0.027 80
IV.ECNV.HHE. 2010-10-20T14:24:13.55 0.1 undecidable manual Pg 253 27.8499 -0.422 100
IV.ESLN.HHZ. 2010-10-20T14:24:10.17 0.6 undecidable manual Sg 305 4.3956 0.234 54
IV.ESLN.HHZ. 2010-10-20T14:24:07.77 0.3 undecidable manual Pg 305 4.3956 -1.511 47
IV.CAFE.HHZ. 2010-10-20T14:24:02.64 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