Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 22-11-2021 and time 04:06:04 (UTC) in region 3 km S Motta Camastra (ME)

A magnitude ML 1.6 earthquake occured in region: 3 km S Motta Camastra (ME), on

  • 22-11-2021 04:06:04 (UTC)
  • 22-11-2021 05:06:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8720, 15.1760 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
Motta Camastra ME 3 845 845
Gaggi ME 4 3184 4029
Linguaglossa CT 4 5403 9432
Castiglione di Sicilia CT 5 3215 12647
Francavilla di Sicilia ME 5 3945 16592
Graniti ME 5 1492 18084
Piedimonte Etneo CT 7 3963 22047
Calatabiano CT 7 5308 27355
Castelmola ME 9 1088 28443
Fiumefreddo di Sicilia CT 9 9623 38066
Mongiuffi Melia ME 10 600 38666
Giardini-Naxos ME 10 9415 48081
Taormina ME 10 10960 59041
Roccafiorita ME 11 197 59238
Gallodoro ME 11 367 59605
Moio Alcantara ME 11 717 60322
Letojanni ME 12 2861 63183
Limina ME 12 836 64019
Malvagna ME 12 733 64752
Mascali CT 13 14282 79034
Fondachelli-Fantina ME 13 1019 80053
Antillo ME 13 919 80972
Sant'Alfio CT 14 1582 82554
Forza d'Agrò ME 15 911 83465
Riposto CT 16 14838 98303
Giarre CT 16 27659 125962
Sant'Alessio Siculo ME 16 1554 127516
Roccella Valdemone ME 16 666 128182
Casalvecchio Siculo ME 16 842 129024
Novara di Sicilia ME 17 1337 130361
Savoca ME 17 1732 132093
Milo CT 17 1087 133180
Santa Teresa di Riva ME 19 9377 142557
Mandanici ME 19 601 143158
Santa Domenica Vittoria ME 19 980 144138

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km N of Acireale (52622 inhabitants)
42 Km N of Catania (314555 inhabitants)
49 Km SW of Reggio di Calabria (183035 inhabitants)
49 Km SW of Messina (238439 inhabitants)
91 Km N of Siracusa (122291 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 1.6 2021-11-22
04:06:04		 37.8718 15.1763 23 2022-03-30
13:04:41		 Bollettino Sismico Italiano INGV 101976101
Reviewed
Rev200 		ML 1.4 2021-11-22
04:06:04		 37.873 15.142 12 2022-03-14
15:28:07		 Sala Operativa INGV_OE (Catania) 97676841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-22 04:06:04 ± 0.26
Latitude 37.8718 ± 0.0081
Longitude 15.1763 ± 0.0159
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 101976101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1357
Semi-minor axis of confidence ellipse (meter) 553
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 276
Circular confidence region, given by single value of horizontal uncertainty (meter) 1360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
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) 0.04497
Epicentral distance of station farthest from the epicenter (degree) 0.77971
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 101976101
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-14 15:27:52

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 97676841
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-11-22 04:20:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HSRS.HHZ. 2021-11-22T04:06:18.67 0.3 undecidable manual P 177 86.5467 99 -0.51 59
IV.MPNC.HHZ. 2021-11-22T04:06:17.24 0.6 undecidable manual S 27 34.1436 116 0.63 42
IV.MUCR.HHZ. 2021-11-22T04:06:15.26 0.6 undecidable manual S 306 32.5452 117 -0.97 36
IV.MILZ.HHZ. 2021-11-22T04:06:13.27 0.1 undecidable manual P 6 44.5221 109 0.38 87
IV.EMFO.HHE. 2021-11-22T04:06:13.58 0.6 undecidable manual S 207 16.872 138 0.69 42
IV.MCPD.HHZ. 2021-11-22T04:06:13.72 1.0 undecidable manual P 305 47.7189 108 0.38 22
IV.EMNR.HHZ. 2021-11-22T04:06:13.22 0.6 undecidable manual S 245 14.4744 143 0.74 41
IV.AIO.HHZ. 2021-11-22T04:06:12.11 0.6 undecidable manual S 24 12.0768 148 0 49
IV.ECBD.HHN. 2021-11-22T04:06:12.65 0.6 undecidable manual S 218 12.876 146 0.42 46
IV.EPIT.HHZ. 2021-11-22T04:06:12.41 0.6 undecidable manual S 237 12.4764 147 0.24 48
IV.MUCR.HHZ. 2021-11-22T04:06:11.38 0.3 undecidable manual P 306 32.5452 117 0.2 69
IV.MPNC.HHZ. 2021-11-22T04:06:11.65 0.1 undecidable manual P 27 34.1436 116 0.25 92
IV.EFIU.HHZ. 2021-11-22T04:06:11.57 0.6 undecidable manual S 162 9.5793 154 -0.22 47
IV.ECTS.HHZ. 2021-11-22T04:06:10.52 0.6 undecidable manual S 283 4.995 166 -0.85 39
IV.EPOZ.HHZ. 2021-11-22T04:06:10.31 0.3 undecidable manual P 177 22.2555 129 0.46 67
IV.EMNR.HHZ. 2021-11-22T04:06:09.13 0.1 undecidable manual P 245 14.4744 143 0.11 97
IV.NOV.HHZ. 2021-11-22T04:06:09.31 0.1 undecidable manual P 349 17.6712 137 -0.02 99
IV.EMFO.HHE. 2021-11-22T04:06:09.09 0.1 undecidable manual P 207 16.872 138 -0.16 96
IV.EPIT.HHZ. 2021-11-22T04:06:08.83 0.1 positive manual P 237 12.4764 147 -0.01 100
IV.EFIU.HHZ. 2021-11-22T04:06:08.24 0.1 undecidable manual P 162 9.5793 154 -0.38 92
IV.AIO.HHZ. 2021-11-22T04:06:08.69 0.3 undecidable manual P 24 12.0768 148 -0.12 73
IV.ECBD.HHN. 2021-11-22T04:06:08.82 0.1 undecidable manual P 218 12.876 146 -0.05 99
IV.ECTS.HHZ. 2021-11-22T04:06:07.78 0.1 positive manual P 283 4.995 166 -0.6 88
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ECTS.HHN. ML:1.6 0.000321 0.98 AML other m 2021-11-22T04:06:10.38
IV.ECTS.HHE. ML:1.5 0.00020950000000000002 0.18 AML other m 2021-11-22T04:06:11.81
IV.EPIT.HHN. ML:2.2 0.0010215 0.98 AML other m 2021-11-22T04:06:13.10
IV.EPIT.HHE. ML:2.0 0.0006885 0.72 AML other m 2021-11-22T04:06:13.38
IV.MUCR.HHN. ML:1.3 0.0000752 0.28 AML other m 2021-11-22T04:06:17.84
IV.MUCR.HHE. ML:1.3 0.00007255 1.46 AML other m 2021-11-22T04:06:17.74
IV.MPNC.HHN. ML:1.8 0.0002315 1.22 AML other m 2021-11-22T04:06:18.81
IV.MPNC.HHE. ML:1.7 0.000183 1.58 AML other m 2021-11-22T04:06:19.08
IV.MILZ.HHN. ML:1.6 0.00009275 1.62 AML other m 2021-11-22T04:06:21.99
IV.MILZ.HHE. ML:1.6 0.000118 1.62 AML other m 2021-11-22T04:06:21.99
IV.MCPD.HHN. ML:1.2 0.00004225 0.6 AML other m 2021-11-22T04:06:22.91
IV.MCPD.HHE. ML:1.2 0.00003460000000000001 0.42 AML other m 2021-11-22T04:06:22.66
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