Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 22-11-2012 and time 12:57:34 (UTC) in region 9 km SE Maletto (CT)

A magnitude ML 2.1 earthquake occured in region: 9 km SE Maletto (CT), on

  • 22-11-2012 12:57:34 (UTC)
  • 22-11-2012 13:57:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7950, 14.9530 at 27 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 9 3920 3920
Randazzo CT 9 10900 14820
Bronte CT 11 19172 33992
Santa Domenica Vittoria ME 14 980 34972
Moio Alcantara ME 15 717 35689
Maniace CT 15 3765 39454
Roccella Valdemone ME 16 666 40120
Milo CT 16 1087 41207
Malvagna ME 17 733 41940
Zafferana Etnea CT 17 9517 51457
Linguaglossa CT 18 5403 56860
Sant'Alfio CT 18 1582 58442
Castiglione di Sicilia CT 18 3215 61657
Adrano CT 18 36122 97779
Ragalna CT 18 3924 101703
Biancavilla CT 18 24007 125710
Piedimonte Etneo CT 20 3963 129673

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NW of Acireale (52622 inhabitants)
34 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)
87 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
Reviewed
Rev100 		ML 2.1 2012-11-22
12:57:34		 37.7972 14.9627 28 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 2612311
Bulletin
Rev1000 		ML 2.1 2012-11-22
12:57:34		 37.7948 14.953 27 2014-09-19
08:14:18		 Bollettino Sismico Italiano INGV 3153301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-11-22 12:57:34 ± 0.11
Latitude 37.7948 ± 0.0027
Longitude 14.9530 ± 0.0057
Depth (km) 27 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 3153301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 479
Semi-minor axis of confidence ellipse (meter) 208
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 92
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.10252
Epicentral distance of station farthest from the epicenter (degree) 0.84626
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 3153301
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:45:39

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 2612311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2012-11-22 13:04:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2012-11-22T12:58:02.25 0.6 undecidable manual S 171 93.8394 101 -0.02 44
IV.HMDC.HHZ. 2012-11-22T12:58:02.82 0.6 undecidable manual S 189 93.9393 101 0.53 39
IV.MEU.SHZ. 2012-11-22T12:57:57.90 0.3 undecidable manual S 188 76.6677 104 0.12 67
IV.MSRU.HHZ. 2012-11-22T12:57:56.97 0.6 undecidable manual S 43 71.1732 105 0.6 39
IV.HAGA.HHZ. 2012-11-22T12:57:53.45 0.3 undecidable manual S 162 59.2962 109 0.11 69
IV.HCRL.HHZ. 2012-11-22T12:57:52.86 0.3 undecidable manual S 173 57.1983 109 0.05 70
IV.MPNC.HHZ. 2012-11-22T12:57:51.84 0.3 undecidable manual S 42 52.4031 111 0.23 67
IV.HMDC.HHZ. 2012-11-22T12:57:50.41 0.3 undecidable manual P 189 93.9393 101 -0.06 65
IV.HLNI.HHZ. 2012-11-22T12:57:50.97 0.3 undecidable manual S 188 50.0166 113 -0.05 70
IV.HAVL.HHZ. 2012-11-22T12:57:50.29 0.3 undecidable manual P 171 93.8394 101 -0.17 64
IV.MSFR.HHZ. 2012-11-22T12:57:49.12 0.3 undecidable manual S 310 41.2254 117 0.22 70
IV.MCPD.HHZ. 2012-11-22T12:57:48.90 0.3 undecidable manual S 332 40.9257 118 0.07 72
IV.HBSP.HHZ. 2012-11-22T12:57:48.93 0.1 undecidable manual P 209 84.4488 103 -0.12 87
IV.MCSR.HHZ. 2012-11-22T12:57:48.25 0.3 undecidable manual S 39 38.5281 119 0 73
IV.MEU.SHZ. 2012-11-22T12:57:47.58 0.1 undecidable manual P 188 76.6677 104 -0.29 85
IV.AIO.HHZ. 2012-11-22T12:57:46.98 0.3 undecidable manual S 51 31.3464 126 0.34 69
IV.MNO.SHZ. 2012-11-22T12:57:46.19 0.6 undecidable manual S 304 27.1506 130 0.43 46
IV.MSRU.HHZ. 2012-11-22T12:57:46.96 0.1 undecidable manual P 43 71.1732 105 -0.09 91
IV.NOV.HHZ. 2012-11-22T12:57:46.15 0.3 undecidable manual S 32 30.4473 127 -0.29 70
IV.HCRL.HHZ. 2012-11-22T12:57:45.01 0.1 undecidable manual P 173 57.1983 109 0.01 94
IV.MUCR.HHZ. 2012-11-22T12:57:45.81 0.6 undecidable manual S 346 28.3494 129 -0.2 48
IV.HAGA.HHZ. 2012-11-22T12:57:45.11 0.1 undecidable manual P 162 59.2962 109 -0.2 90
IV.SN1.HHZ. 2012-11-22T12:57:44.25 0.1 undecidable manual P 125 47.7189 114 0.61 83
IV.MPNC.HHZ. 2012-11-22T12:57:44.28 0.1 undecidable manual P 42 52.4031 111 -0.03 95
IV.ESLN.HHZ. 2012-11-22T12:57:43.07 0.3 undecidable manual S 171 11.3775 155 -0.08 75
IV.HLNI.HHZ. 2012-11-22T12:57:43.71 0.1 undecidable manual P 188 50.0166 113 -0.26 90
IV.MCPD.HHZ. 2012-11-22T12:57:42.57 0.1 undecidable manual P 332 40.9257 118 -0.13 95
IV.MCSR.HHZ. 2012-11-22T12:57:42.24 0.1 undecidable manual P 39 38.5281 119 -0.13 95
IV.MSFR.HHZ. 2012-11-22T12:57:42.73 0.1 undecidable manual P 310 41.2254 117 -0.01 97
IV.GALF.HHZ. 2012-11-22T12:57:42.57 0.1 undecidable manual P 255 35.1426 122 0.64 84
IV.NOV.HHZ. 2012-11-22T12:57:41.14 0.1 undecidable manual P 32 30.4473 127 -0.19 96
IV.AIO.HHZ. 2012-11-22T12:57:41.24 0.1 undecidable manual P 51 31.3464 126 -0.2 95
IV.MNO.SHZ. 2012-11-22T12:57:41.09 0.1 undecidable manual P 304 27.1506 130 0.16 96
IV.MUCR.HHZ. 2012-11-22T12:57:40.74 0.1 undecidable manual P 346 28.3494 129 -0.34 93
IV.ESLN.HHZ. 2012-11-22T12:57:39.33 0.1 undecidable manual P 171 11.3775 155 -0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AIO.HHE. ML:2.1 0.00043100000000000007 0.38 AML other m 2012-11-22T12:57:47.10
IV.AIO.HHN. ML:1.9 0.000273 0.54 AML other m 2012-11-22T12:57:48.36
IV.ESLN.HHN. ML:2.2 0.0008685 0.84 AML other m 2012-11-22T12:58:12.62
IV.ESLN.HHE. ML:2.3 0.0011099999999999999 0.74 AML other m 2012-11-22T12:58:18.51
IV.GALF.HHE. ML:1.8 0.00021 0.48 AML other m 2012-11-22T12:57:50.41
IV.GALF.HHN. ML:1.8 0.000222 0.94 AML other m 2012-11-22T12:57:52.60
IV.HAGA.HHE. ML:2.0 0.0001725 1.16 AML other m 2012-11-22T12:57:54.12
IV.HAGA.HHN. ML:2.0 0.0001985 0.56 AML other m 2012-11-22T12:57:54.12
IV.HAVL.HHE. ML:2.2 0.00017299999999999998 0.32 AML other m 2012-11-22T12:58:03.11
IV.HAVL.HHN. ML:2.3 0.000194 0.3 AML other m 2012-11-22T12:58:04.68
IV.HCRL.HHE. ML:2.1 0.0002675 0.36 AML other m 2012-11-22T12:57:53.39
IV.HCRL.HHN. ML:2.2 0.0002735 1.12 AML other m 2012-11-22T12:57:53.41
IV.HLNI.HHN. ML:2.2 0.0003415 0.26 AML other m 2012-11-22T12:57:51.31
IV.HLNI.HHE. ML:2.0 0.000245 0.78 AML other m 2012-11-22T12:57:51.56
IV.HMDC.HHN. ML:2.4 0.00023549999999999998 0.94 AML other m 2012-11-22T12:58:03.66
IV.HMDC.HHE. ML:2.3 0.0002205 1.08 AML other m 2012-11-22T12:58:03.12
IV.MCPD.HHE. ML:1.8 0.0001555 0.44 AML other m 2012-11-22T12:57:49.22
IV.MCPD.HHN. ML:1.5 0.0000857 0.72 AML other m 2012-11-22T12:57:49.34
IV.MCSR.HHN. ML:2.4 0.0006414999999999999 1.58 AML other m 2012-11-22T12:57:50.02
IV.MCSR.HHE. ML:2.4 0.0006885 1.02 AML other m 2012-11-22T12:57:49.41
IV.MEU.SHE. ML:2.5 0.0004215 0.32 AML other m 2012-11-22T12:57:58.18
IV.MEU.SHN. ML:2.5 0.00039650000000000004 0.24 AML other m 2012-11-22T12:57:59.28
IV.MNO.SHN. ML:2.0 0.00035499999999999996 0.6 AML other m 2012-11-22T12:57:47.94
IV.MNO.SHE. ML:2.0 0.00040300000000000004 0.32 AML other m 2012-11-22T12:57:46.54
IV.MPNC.HHE. ML:2.2 0.0003705 1.46 AML other m 2012-11-22T12:57:52.95
IV.MPNC.HHN. ML:2.2 0.00035999999999999997 1.44 AML other m 2012-11-22T12:57:52.47
IV.MSRU.HHN. ML:2.0 0.00013785 0.92 AML other m 2012-11-22T12:58:02.05
IV.MSRU.HHE. ML:2.0 0.000132 0.3 AML other m 2012-11-22T12:58:01.69
IV.MUCR.HHN. ML:1.7 0.000194 0.86 AML other m 2012-11-22T12:57:46.61
IV.MUCR.HHE. ML:2.1 0.0004305 0.36 AML other m 2012-11-22T12:57:46.50
IV.NOV.HHN. ML:1.6 0.00012355 1.4 AML other m 2012-11-22T12:57:46.95
IV.NOV.HHE. ML:1.8 0.000209 0.38 AML other m 2012-11-22T12:57:47.40
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