Earthquake with magnitude of ML 1.7 on date 24-12-2021 and time 19:06:13 (Italy) in region 7 km SW Motta Sant'Anastasia (CT)

A magnitude ML 1.7 earthquake occured in region: 7 km SW Motta Sant'Anastasia (CT), on

  • 24-12-2021 18:06:13 (UTC)
  • 24-12-2021 19:06:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.4700, 14.9150 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.

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 7 12116 12116
Misterbianco CT 10 49410 61526
PaternĂ² CT 12 48228 109754
Camporotondo Etneo CT 14 5023 114777
Belpasso CT 15 28108 142885
San Pietro Clarenza CT 15 7743 150628
Catania CT 16 314555 465183
Gravina di Catania CT 17 25838 491021
Santa Maria di Licodia CT 17 7641 498662
Mascalucia CT 17 31958 530620
Sant'Agata li Battiati CT 18 9479 540099
Ragalna CT 18 3924 544023
Tremestieri Etneo CT 18 20589 564612
Nicolosi CT 19 7463 572075
Biancavilla CT 20 24007 596082
San Giovanni la Punta CT 20 23060 619142

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km W of Catania (314555 inhabitants)
27 Km SW of Acireale (52622 inhabitants)
57 Km NW of Siracusa (122291 inhabitants)
63 Km N of Ragusa (73313 inhabitants)
67 Km NE of Vittoria (63339 inhabitants)
69 Km N of Modica (54633 inhabitants)
74 Km NE of Gela (75827 inhabitants)
75 Km E of Caltanissetta (63360 inhabitants)
96 Km SW of Reggio di Calabria (183035 inhabitants)
98 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 1.7 2021-12-24
18:06:13
37.4703 14.9148 10 2022-03-30
13:04:24
Bollettino Sismico Italiano INGV 99145641
Reviewed
Rev100
ML 1.9 2021-12-24
18:06:13
37.4677 14.9113 9 2021-12-24
18:12:27
Sala Sismica INGV-Roma 98926121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-24 18:06:13 ± 0.08
Latitude 37.4703 ± 0.0036
Longitude 14.9148 ± 0.0091
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 99145641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 794
Semi-minor axis of confidence ellipse (meter) 142
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 91
Circular confidence region, given by single value of horizontal uncertainty (meter) 790.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 46
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.12680
Epicentral distance of station farthest from the epicenter (degree) 0.68978
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 23
Type of magnitude ML
Reference to an origin 99145641
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-16 13:44:02

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 98926121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-24 18:12:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ISPIC.EHZ. 2021-12-24T18:06:37.93 0.6 undecidable manual S 181 76.5678 50 0.83 35
IV.RAFF.HHZ. 2021-12-24T18:06:32.49 0.6 undecidable manual S 241 55.8996 50 0.88 36
IV.HMDC.HHZ. 2021-12-24T18:06:32.24 0.6 undecidable manual S 192 57.8976 50 0.11 46
IV.HSRS.HHZ. 2021-12-24T18:06:30.34 0.6 undecidable manual S 147 49.9167 50 0.35 44
IV.GALF.HHZ. 2021-12-24T18:06:28.25 0.6 undecidable manual S 311 40.626 50 0.74 39
IV.SSY.HHZ. 2021-12-24T18:06:27.48 0.6 undecidable manual S 158 37.4292 50 0.82 38
IV.ISPIC.EHZ. 2021-12-24T18:06:27.01 0.3 undecidable manual P 181 76.5678 50 -0.27 64
IV.ESCV.HHN. 2021-12-24T18:06:26.71 0.6 undecidable manual S 344 31.9458 50 1.52 27
IV.HVZN.HHZ. 2021-12-24T18:06:26.08 0.6 undecidable manual S 209 36.8298 50 -0.43 44
IV.EMFS.HHZ. 2021-12-24T18:06:24.28 0.6 undecidable manual S 15 28.5492 50 -0.02 49
IV.ECZM.HHZ. 2021-12-24T18:06:24.92 0.6 undecidable manual S 358 28.9488 50 0.52 44
IV.HAGA.HHZ. 2021-12-24T18:06:24.82 0.6 undecidable manual S 134 29.5482 50 0.27 46
MN.VAE.HHZ. 2021-12-24T18:06:23.11 0.3 undecidable manual P 270 49.4172 50 0.01 71
IV.RAFF.HHZ. 2021-12-24T18:06:23.60 0.1 positive manual P 241 55.8996 50 -0.5 84
IV.EMPL.HHZ. 2021-12-24T18:06:23.60 0.6 undecidable manual S 12 23.6541 112 0.91 38
IV.HMDC.HHZ. 2021-12-24T18:06:23.73 0.3 undecidable manual P 192 57.8976 50 -0.68 59
IV.ESLN.HHZ. 2021-12-24T18:06:23.45 0.6 undecidable manual S 12 25.2525 111 0.22 47
IV.ESPC.HHZ. 2021-12-24T18:06:23.64 0.6 undecidable manual S 22 26.5512 110 0 49
IV.HSRS.HHZ. 2021-12-24T18:06:22.80 0.3 undecidable manual P 147 49.9167 50 -0.37 66
IV.EPZF.HHZ. 2021-12-24T18:06:22.08 0.3 undecidable manual P 353 39.5271 50 0.5 65
IT.LNT.HGZ. 2021-12-24T18:06:22.66 0.3 undecidable manual S 159 21.5673 114 0.62 64
IV.ESAL.HHE. 2021-12-24T18:06:21.22 0.6 undecidable manual P 31 37.0296 50 0.03 48
IV.GALF.HHZ. 2021-12-24T18:06:21.51 0.3 undecidable manual P 311 40.626 50 -0.23 69
IV.EPIT.HHZ. 2021-12-24T18:06:21.30 0.3 undecidable manual P 18 39.8268 50 -0.32 68
IV.ESVO.HHE. 2021-12-24T18:06:21.23 0.3 undecidable manual P 5 33.744 50 0.56 64
IV.SSY.HHZ. 2021-12-24T18:06:21.12 0.1 negative manual P 158 37.4292 50 -0.12 94
IV.EMNR.HHZ. 2021-12-24T18:06:21.77 0.6 undecidable manual P 14 39.627 50 0.18 46
IV.ECZM.HHZ. 2021-12-24T18:06:20.01 0.3 undecidable manual P 358 28.9488 50 0.07 73
IV.EPOZ.HHZ. 2021-12-24T18:06:20.95 0.1 undecidable manual P 47 32.8449 50 0.41 90
IV.ESCV.HHN. 2021-12-24T18:06:20.39 0.3 undecidable manual P 344 31.9458 50 -0.01 73
IV.HVZN.HHZ. 2021-12-24T18:06:20.65 0.3 undecidable manual P 209 36.8298 50 -0.51 65
IV.ESML.HHZ. 2021-12-24T18:06:20.07 0.6 undecidable manual S 349 16.6722 120 -0.44 46
IV.EMFO.HHE. 2021-12-24T18:06:20.00 0.3 undecidable manual P 28 33.2445 50 -0.6 63
IV.EVRN.HNN. 2021-12-24T18:06:20.03 0.6 undecidable manual P 39 31.0467 50 -0.24 47
IV.ECBD.HHN. 2021-12-24T18:06:20.53 0.3 undecidable manual P 24 37.5291 50 -0.73 59
IV.HLNI.HHZ. 2021-12-24T18:06:20.10 0.6 undecidable manual S 196 14.0748 124 0.37 47
IV.EMCN.HHN. 2021-12-24T18:06:20.57 0.3 undecidable manual P 16 37.1295 50 -0.63 62
IV.EMFS.HHZ. 2021-12-24T18:06:19.53 0.3 undecidable manual P 15 28.5492 50 -0.36 68
IV.ECHR.HHZ. 2021-12-24T18:06:19.02 0.1 undecidable manual P 360 23.9538 112 0 99
IV.HAGA.HHZ. 2021-12-24T18:06:19.72 0.3 undecidable manual P 134 29.5482 50 -0.31 69
IV.ESPC.HHZ. 2021-12-24T18:06:19.11 0.1 positive manual P 22 26.5512 110 -0.39 91
IV.EMPL.HHZ. 2021-12-24T18:06:19.14 0.1 undecidable manual P 12 23.6541 112 0.18 95
IV.ESLN.HHZ. 2021-12-24T18:06:19.43 0.1 undecidable manual P 12 25.2525 111 0.16 96
IT.LNT.HGZ. 2021-12-24T18:06:18.59 0.3 undecidable manual P 159 21.5673 114 0.01 74
IV.HLNI.HHZ. 2021-12-24T18:06:17.28 0.1 negative manual P 196 14.0748 124 0.03 100
IV.ESML.HHZ. 2021-12-24T18:06:17.54 0.1 undecidable manual P 349 16.6722 120 -0.16 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESML.HHE. ML:1.4 0.0002123992 0.1024 AML other m 2021-12-24T18:06:20.12
IV.ESML.HHN. ML:1.4 0.00024010585 0.128 AML other m 2021-12-24T18:06:20.22
IV.ESML.HNN. ML:1.3 0.0001916855 0.5504 AML other m 2021-12-24T18:06:20.17
IV.HLNI.HHE. ML:2.0 0.0010680000000000002 0.28 AML other m 2021-12-24T18:06:20.46
IV.HLNI.HHN. ML:1.8 0.00066745585 0.2176 AML other m 2021-12-24T18:06:20.44
IV.EMPL.HHE. ML:2.3 0.0013137180000000002 0.2176 AML other m 2021-12-24T18:06:24.03
IV.EMPL.HHN. ML:2.5 0.0018968564999999999 0.2688 AML other m 2021-12-24T18:06:24.06
IV.HAGA.HHN. ML:1.7 0.00026576065000000004 0.1408 AML other m 2021-12-24T18:06:24.97
IV.HAGA.HHE. ML:1.8 0.00031939195 0.1792 AML other m 2021-12-24T18:06:24.97
IV.HVZN.HHE. ML:1.6 0.00017024825 0.96 AML other m 2021-12-24T18:06:26.82
IV.EPOZ.HHE. ML:1.4 0.00010115444 0.1024 AML other m 2021-12-24T18:06:26.84
IV.SSY.HHE. ML:2.1 0.00043797675 0.128 AML other m 2021-12-24T18:06:27.56
IV.SSY.HNE. ML:1.6 0.00016033345 0.2048 AML other m 2021-12-24T18:06:27.73
IV.SSY.HHN. ML:2.1 0.00047690805 0.192 AML other m 2021-12-24T18:06:27.74
IV.GALF.HHN. ML:1.6 0.00014983445000000002 0.3968 AML other m 2021-12-24T18:06:28.26
IV.GALF.HHE. ML:1.6 0.00015065265 0.3072 AML other m 2021-12-24T18:06:29.02
IV.HSRS.HHN. ML:1.3 0.000054386944999999996 0.4608 AML other m 2021-12-24T18:06:30.70
IV.HSRS.HHE. ML:1.4 0.00006815530000000001 0.4608 AML other m 2021-12-24T18:06:30.46
IV.HMDC.HNE. ML:1.8 0.0001336555 0.704 AML other m 2021-12-24T18:06:32.10
IV.HMDC.HHE. ML:1.5 0.000066185685 0.4608 AML other m 2021-12-24T18:06:32.42
IV.RAFF.HHN. ML:1.5 0.00007173159499999999 0.2944 AML other m 2021-12-24T18:06:32.81
IV.ISPIC.EHE. ML:2.0 0.00016173489999999998 0.4608 AML other m 2021-12-24T18:06:38.52
IV.ISPIC.EHN. ML:2.1 0.0001725 0.74 AML other m 2021-12-24T18:06:38.36
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