Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 22-12-2021 and time 06:07:18 (UTC) in region 7 km W Canicattini Bagni (SR)

A magnitude ML 1.9 earthquake occured in region: 7 km W Canicattini Bagni (SR), on

  • 22-12-2021 06:07:18 (UTC)
  • 22-12-2021 07:07:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.0250, 14.9820 at 23 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
Canicattini Bagni SR 7 7109 7109
Palazzolo Acreide SR 8 8808 15917
Cassaro SR 10 821 16738
Buscemi SR 11 1051 17789
Ferla SR 11 2523 20312
Solarino SR 15 8091 28403
Sortino SR 16 8690 37093
Buccheri SR 16 1999 39092
Noto SR 17 23913 63005
Floridia SR 17 22762 85767
Giarratana RG 17 3048 88815
Avola SR 19 31708 120523

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Ragusa (73313 inhabitants)
27 Km NE of Modica (54633 inhabitants)
28 Km W of Siracusa (122291 inhabitants)
40 Km E of Vittoria (63339 inhabitants)
54 Km S of Catania (314555 inhabitants)
65 Km E of Gela (75827 inhabitants)
68 Km S of Acireale (52622 inhabitants)
97 Km SE of Caltanissetta (63360 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 1.9 2021-12-22
06:07:18		 37.0247 14.9818 23 2022-03-30
13:04:26		 Bollettino Sismico Italiano INGV 99317281
Reviewed
Rev100 		ML 1.9 2021-12-22
06:07:18		 37.0267 14.9755 22 2021-12-22
06:20:58		 Sala Sismica INGV-Roma 98808051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-22 06:07:18 ± 0.12
Latitude 37.0247 ± 0.0045
Longitude 14.9818 ± 0.0056
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99317281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 589
Semi-minor axis of confidence ellipse (meter) 52
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 313
Circular confidence region, given by single value of horizontal uncertainty (meter) 590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.15199
Epicentral distance of station farthest from the epicenter (degree) 0.53150
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 99317281
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-04 16:18:47

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 98808051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-22 06:20:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CROCE.HHZ. 2021-12-22T06:07:33.58 0.3 undecidable manual S 242 45.0216 109 -0.08 72
IV.HVIT.HHZ. 2021-12-22T06:07:32.34 0.6 undecidable manual S 265 40.9257 111 -0.29 46
IV.HLNI.HHZ. 2021-12-22T06:07:31.33 0.3 undecidable manual S 345 37.2294 114 -0.38 67
IV.HVZN.HHZ. 2021-12-22T06:07:30.21 0.3 undecidable manual S 306 29.0487 121 0.43 69
IV.HAGA.HHZ. 2021-12-22T06:07:30.38 0.3 undecidable manual S 28 32.6451 117 -0.24 70
IV.RAFF.HHZ. 2021-12-22T06:07:30.00 0.3 undecidable manual P 292 58.9965 104 0.61 61
IV.ISPIC.HNZ. 2021-12-22T06:07:29.56 0.3 undecidable manual S 194 27.9498 122 0.03 73
IV.HCRL.HHZ. 2021-12-22T06:07:29.87 0.3 undecidable manual S 9 29.0487 121 0.11 74
IV.HSRS.HHZ. 2021-12-22T06:07:28.22 0.3 undecidable manual S 70 22.5552 129 -0.13 74
IV.SSY.HHN. 2021-12-22T06:07:27.51 0.3 undecidable manual S 29 16.872 138 0.27 72
IV.CROCE.HHZ. 2021-12-22T06:07:27.15 0.1 positive manual P 242 45.0216 109 -0.17 94
IV.HMDC.HHZ. 2021-12-22T06:07:27.48 0.3 undecidable manual S 248 19.0698 134 -0.17 73
IV.HVIT.HHZ. 2021-12-22T06:07:26.63 0.3 undecidable manual P 265 40.9257 111 -0.09 72
IV.HLNI.HHZ. 2021-12-22T06:07:26.00 0.3 undecidable manual P 345 37.2294 114 -0.19 70
IV.HVZN.HHZ. 2021-12-22T06:07:25.10 0.3 undecidable manual P 306 29.0487 121 0.02 75
IV.HAGA.HHZ. 2021-12-22T06:07:25.48 0.3 undecidable manual P 28 32.6451 117 -0.09 73
IV.HCRL.HHZ. 2021-12-22T06:07:25.15 0.1 positive manual P 9 29.0487 121 0.08 98
IV.HSRS.HHZ. 2021-12-22T06:07:24.36 0.1 positive manual P 70 22.5552 129 0.11 98
IV.ISPIC.HNZ. 2021-12-22T06:07:24.96 0.1 positive manual P 194 27.9498 122 0.03 98
IV.SSY.HHN. 2021-12-22T06:07:23.81 0.1 negative manual P 29 16.872 138 0.2 97
IV.HMDC.HHZ. 2021-12-22T06:07:23.77 0.1 positive manual P 248 19.0698 134 -0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ISPIC.HNN. ML:1.4 0.00009836166000000001 0.192 AML other m 2021-12-22T06:07:25.91
IV.HSRS.HNN. ML:2.2 0.00074704025 0.5088 AML other m 2021-12-22T06:07:25.92
IV.HMDC.HNN. ML:2.1 0.0006321701 0.08 AML other m 2021-12-22T06:07:27.60
IV.HMDC.HHN. ML:2.3 0.0010175262 0.08 AML other m 2021-12-22T06:07:27.60
IV.HMDC.HHE. ML:2.2 0.0009335 0.12 AML other m 2021-12-22T06:07:27.63
IV.HMDC.HNE. ML:2.1 0.0006453953 0.0896 AML other m 2021-12-22T06:07:27.63
IV.SSY.HNN. ML:2.1 0.0007737313500000001 0.1216 AML other m 2021-12-22T06:07:27.86
IV.SSY.HNE. ML:2.2 0.00080667365 0.1792 AML other m 2021-12-22T06:07:28.33
IV.SSY.HHN. ML:2.7 0.0027249239999999997 0.1792 AML other m 2021-12-22T06:07:28.33
IV.SSY.HHE. ML:2.3 0.0011445053999999998 0.16 AML other m 2021-12-22T06:07:28.46
IV.HSRS.HHN. ML:1.5 0.00013986235 0.2208 AML other m 2021-12-22T06:07:28.69
IV.HSRS.HHE. ML:1.2 0.00007900057 0.0608 AML other m 2021-12-22T06:07:28.93
IV.ISPIC.EHE. ML:1.5 0.0001345698 0.0608 AML other m 2021-12-22T06:07:29.73
IV.HCRL.HHN. ML:2.2 0.00061156915 1.9008 AML other m 2021-12-22T06:07:30.96
IV.HCRL.HHE. ML:2.1 0.0004651773 0.1376 AML other m 2021-12-22T06:07:30.03
IV.ISPIC.EHN. ML:1.4 0.00009381621000000001 0.08 AML other m 2021-12-22T06:07:30.23
IV.HAGA.HHE. ML:1.7 0.000173000615 0.2816 AML other m 2021-12-22T06:07:30.63
IV.HAGA.HHN. ML:1.7 0.00019398523500000002 0.08 AML other m 2021-12-22T06:07:30.87
IV.HVZN.HHN. ML:1.9 0.00034006715 0.2784 AML other m 2021-12-22T06:07:31.08
IV.HLNI.HHE. ML:1.8 0.0002304435 0.16 AML other m 2021-12-22T06:07:31.53
IV.HLNI.HHN. ML:2.2 0.0005415 0.24 AML other m 2021-12-22T06:07:31.62
IV.HVZN.HHE. ML:2.0 0.00036627359999999996 0.32 AML other m 2021-12-22T06:07:32.06
IV.HVIT.HHE. ML:1.9 0.00022250000000000001 1.76 AML other m 2021-12-22T06:07:33.95
IV.CROCE.HHE. ML:1.7 0.00011973528499999999 0.2016 AML other m 2021-12-22T06:07:33.76
IV.CROCE.HNE. ML:1.7 0.00014496105 0.2112 AML other m 2021-12-22T06:07:33.76
IV.CROCE.HNN. ML:1.9 0.0002305919 1.7984 AML other m 2021-12-22T06:07:34.01
IV.CROCE.HHN. ML:1.8 0.00017199999999999998 1.8 AML other m 2021-12-22T06:07:34.91
IV.HVIT.HHN. ML:1.9 0.00022608115000000002 0.0992 AML other m 2021-12-22T06:07:35.05
IV.HSRS.HNE. ML:1.5 0.00014100704 0.752 AML other m 2021-12-22T06:07:36.22
IV.ISPIC.HNE. ML:1.8 0.000234506795 0.6112 AML other m 2021-12-22T06:07:38.78
IV.RAFF.HHE. ML:1.6 0.00006995123 0.3808 AML other m 2021-12-22T06:07:39.67
IV.RAFF.HHN. ML:1.6 0.00007332875 0.24 AML other m 2021-12-22T06:07:40.48
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