Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 22-09-2012 and time 02:59:23 (Italy) in region 3 km NW Motta Sant'Anastasia (CT)

A magnitude ML 0.8 earthquake occured in region: 3 km NW Motta Sant'Anastasia (CT), on

  • 22-09-2012 00:59:23 (UTC)
  • 22-09-2012 02:59:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.5320, 14.9480 at 10 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
Motta Sant'Anastasia CT 3 12116 12116
Misterbianco CT 5 49410 61526
Paternò CT 7 48228 109754
Camporotondo Etneo CT 7 5023 114777
Belpasso CT 7 28108 142885
San Pietro Clarenza CT 8 7743 150628
Mascalucia CT 11 31958 182586
Gravina di Catania CT 11 25838 208424
Santa Maria di Licodia CT 11 7641 216065
Ragalna CT 11 3924 219989
Nicolosi CT 12 7463 227452
Sant'Agata li Battiati CT 12 9479 236931
Tremestieri Etneo CT 12 20589 257520
Catania CT 13 314555 572075
Pedara CT 14 14102 586177
San Giovanni la Punta CT 14 23060 609237
Biancavilla CT 14 24007 633244
San Gregorio di Catania CT 15 11966 645210
Trecastagni CT 15 10910 656120
Viagrande CT 16 8563 664683
Aci Bonaccorsi CT 16 3524 668207
Valverde CT 17 7840 676047
Aci Castello CT 18 18723 694770
Adrano CT 18 36122 730892
Aci Sant'Antonio CT 18 17984 748876
Aci Catena CT 19 29851 778727

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km W of Catania (314555 inhabitants)
21 Km W of Acireale (52622 inhabitants)
61 Km NW of Siracusa (122291 inhabitants)
70 Km N of Ragusa (73313 inhabitants)
74 Km NE of Vittoria (63339 inhabitants)
77 Km N of Modica (54633 inhabitants)
78 Km E of Caltanissetta (63360 inhabitants)
81 Km NE of Gela (75827 inhabitants)
89 Km SW of Reggio di Calabria (183035 inhabitants)
91 Km SW of Messina (238439 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 0.8 2012-09-22
00:59:23		 37.5318 14.9477 10 2014-09-19
08:14:18		 Bollettino Sismico Italiano INGV 4411671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-09-22 00:59:23 ± 0.09
Latitude 37.5318 ± 0.0054
Longitude 14.9477 ± 0.0125
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 4411671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1060
Semi-minor axis of confidence ellipse (meter) 598
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 292
Circular confidence region, given by single value of horizontal uncertainty (meter) 1060.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.16278
Epicentral distance of station farthest from the epicenter (degree) 0.58726
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 4411671
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:46:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MEU.SHZ. 2012-09-22T00:59:39.50 0.6 undecidable manual S 193 47.8188 50 0.12 48
IV.AGST.EHZ. 2012-09-22T00:59:36.90 0.6 undecidable manual S 141 39.2274 50 -0.19 48
IV.HAGA.HHZ. 2012-09-22T00:59:35.90 0.6 undecidable manual S 146 32.9448 50 0.5 45
IV.HMDC.HHZ. 2012-09-22T00:59:35.80 0.3 undecidable manual P 193 65.1903 50 0.25 68
IV.HLNI.HHZ. 2012-09-22T00:59:32.40 0.6 undecidable manual S 198 21.3675 116 0.19 50
IV.MEU.SHZ. 2012-09-22T00:59:32.48 0.3 undecidable manual P 193 47.8188 50 -0.39 68
IV.SSY.HHZ. 2012-09-22T00:59:32.15 0.3 undecidable manual P 165 42.9237 50 0.03 74
IV.AGST.EHZ. 2012-09-22T00:59:31.31 0.3 undecidable manual P 141 39.2274 50 -0.24 71
IV.ESLN.HHE. 2012-09-22T00:59:31.53 0.6 undecidable manual S 7 18.0708 120 0.34 48
IV.HAGA.HHZ. 2012-09-22T00:59:30.64 0.3 undecidable manual P 146 32.9448 50 0.06 75
IV.HLNI.HHZ. 2012-09-22T00:59:28.59 0.1 undecidable manual P 198 21.3675 116 -0.14 100
IV.ECNV.HHE. 2012-09-22T00:59:28.88 0.3 undecidable manual P 289 21.867 115 0.06 76
IV.ESLN.HHE. 2012-09-22T00:59:27.93 0.3 undecidable manual P 7 18.0708 120 -0.21 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HLNI.HHN. ML:0.9 0.00005265 1.48 AML other m 2012-09-22T00:59:32.69
IV.HLNI.HHE. ML:0.8 0.00004289999999999999 1.52 AML other m 2012-09-22T00:59:33.53
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