Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 18-12-2021 and time 23:41:03 (UTC) in region 2 km W Barcellona Pozzo di Gotto (ME)

A magnitude ML 1.7 earthquake occured in region: 2 km W Barcellona Pozzo di Gotto (ME), on

  • 18-12-2021 23:41:03 (UTC)
  • 19-12-2021 00:41:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.1390, 15.1960 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
Barcellona Pozzo di Gotto ME 2 41583 41583
Terme Vigliatore ME 3 7395 48978
Rodì Milici ME 4 2056 51034
Castroreale ME 5 2504 53538
Merì ME 6 2338 55876
Furnari ME 7 3784 59660
Mazzarrà Sant'Andrea ME 7 1531 61191
San Filippo del Mela ME 8 7115 68306
Santa Lucia del Mela ME 8 4650 72956
Milazzo ME 10 31646 104602
Falcone ME 10 2808 107410
Pace del Mela ME 11 6239 113649
Gualtieri Sicaminò ME 11 1807 115456
Oliveri ME 12 2181 117637
Condrò ME 12 493 118130
Tripi ME 13 873 119003
San Pier Niceto ME 14 2837 121840
Basicò ME 14 612 122452
Novara di Sicilia ME 15 1337 123789
Torregrotta ME 15 7431 131220
Roccavaldina ME 17 1133 132353
Valdina ME 17 1355 133708
Monforte San Giorgio ME 17 2777 136485
Fondachelli-Fantina ME 17 1019 137504
Venetico ME 17 3911 141415
Spadafora ME 18 5021 146436
Mandanici ME 18 601 147037
Antillo ME 19 919 147956
Rometta ME 20 6650 154606

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km W of Messina (238439 inhabitants)
39 Km W of Reggio di Calabria (183035 inhabitants)
59 Km N of Acireale (52622 inhabitants)
71 Km N of Catania (314555 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 2021-12-18
23:41:03		 38.1387 15.1962 10 2022-03-30
13:04:27		 Bollettino Sismico Italiano INGV 99362741
Reviewed
Rev100 		ML 1.7 2021-12-18
23:41:03		 38.1298 15.1973 10 2021-12-18
23:48:44		 Sala Sismica INGV-Roma 98704751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-18 23:41:03 ± 0.06
Latitude 38.1387 ± 0.0027
Longitude 15.1962 ± 0.0046
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 99362741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 326
Semi-minor axis of confidence ellipse (meter) 315
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 98
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
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) 0.12321
Epicentral distance of station farthest from the epicenter (degree) 0.76802
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 99362741
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-01-05 15:16:08

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 98704751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-18 23:48:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MTTG.HHE. 2021-12-18T23:41:18.56 0.6 undecidable manual S 109 46.5201 50 0.14 47
IV.EPZF.HHZ. 2021-12-18T23:41:18.71 0.6 undecidable manual S 220 45.8208 50 0.48 44
IV.IACL.HHE. 2021-12-18T23:41:17.75 0.6 undecidable manual P 301 85.248 50 -0.23 43
IV.JOPP.HNN. 2021-12-18T23:41:17.34 0.6 undecidable manual P 49 79.365 50 0.28 43
IV.EMNR.HHZ. 2021-12-18T23:41:16.51 0.3 undecidable manual S 203 38.628 50 0.18 72
IV.MCPD.HHZ. 2021-12-18T23:41:16.53 0.3 undecidable manual S 267 40.626 50 -0.32 69
IV.IVGP.HHZ. 2021-12-18T23:41:15.30 0.3 undecidable manual S 324 35.2425 50 -0.11 73
IV.IVUG.HHZ. 2021-12-18T23:41:15.27 0.6 undecidable manual S 327 33.9438 50 0.21 48
IV.IVPL.HHZ. 2021-12-18T23:41:14.95 0.3 undecidable manual S 325 32.3454 50 0.3 71
IV.MSRU.HHZ. 2021-12-18T23:41:13.76 0.3 undecidable manual S 63 30.5472 50 -0.41 69
IV.ECTS.HHZ. 2021-12-18T23:41:13.78 0.3 undecidable manual S 193 29.2485 50 -0.02 75
IV.MUCR.HHZ. 2021-12-18T23:41:13.80 0.3 undecidable manual S 249 30.0477 50 -0.24 72
IV.EPZF.HHZ. 2021-12-18T23:41:12.29 0.3 undecidable manual P 220 45.8208 50 0.4 67
IV.MSFR.HHZ. 2021-12-18T23:41:12.97 0.1 undecidable manual P 258 54.0015 50 -0.2 92
IV.ESAL.HHE. 2021-12-18T23:41:11.75 0.3 undecidable manual P 187 42.9237 50 0.31 69
3D.OEM8.HHN. 2021-12-18T23:41:11.83 0.1 undecidable manual P 327 44.0226 50 0.22 94
IV.EMNR.HHZ. 2021-12-18T23:41:11.22 0.3 undecidable manual P 203 38.628 50 0.42 68
IV.MTTG.HHE. 2021-12-18T23:41:11.75 0.3 undecidable manual P 109 46.5201 50 -0.25 69
IV.EFIU.HHE. 2021-12-18T23:41:10.85 0.1 undecidable manual P 178 38.7279 50 0.05 98
IV.AIO.HHZ. 2021-12-18T23:41:10.10 0.3 undecidable manual S 170 18.87 117 -0.48 69
IV.IVGP.HHZ. 2021-12-18T23:41:10.08 0.3 undecidable manual P 324 35.2425 50 -0.19 72
IV.IVLT.HHN. 2021-12-18T23:41:10.27 0.1 undecidable manual P 323 35.8419 50 -0.08 98
IV.MCPD.HHZ. 2021-12-18T23:41:10.87 0.3 positive manual P 267 40.626 50 -0.23 71
IV.MPNC.HHZ. 2021-12-18T23:41:09.15 0.3 undecidable manual S 86 13.6752 125 0.1 76
IV.IVUG.HHZ. 2021-12-18T23:41:09.86 0.1 undecidable manual P 327 33.9438 50 -0.2 96
IV.ECTS.HHZ. 2021-12-18T23:41:09.35 0.3 undecidable manual P 193 29.2485 50 0.01 75
IV.MUCR.HHZ. 2021-12-18T23:41:09.51 0.3 undecidable manual P 249 30.0477 50 0.04 75
IV.IVPL.HHZ. 2021-12-18T23:41:09.95 0.3 undecidable manual P 325 32.3454 50 0.13 73
IV.MSRU.HHZ. 2021-12-18T23:41:09.33 0.3 undecidable manual P 63 30.5472 50 -0.22 72
IV.MILZ.HHZ. 2021-12-18T23:41:07.08 0.3 undecidable manual P 12 15.0738 123 0.26 73
IV.AIO.HHZ. 2021-12-18T23:41:07.36 0.1 positive manual P 170 18.87 117 -0.12 100
IV.MPNC.HHZ. 2021-12-18T23:41:06.79 0.1 positive manual P 86 13.6752 125 0.2 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MPNC.HHE. ML:2.0 0.000979 0.42 AML other m 2021-12-18T23:41:09.32
IV.AIO.HHE. ML:1.8 0.0005615 0.2 AML other m 2021-12-18T23:41:10.26
IV.MPNC.HHN. ML:1.8 0.0006745 0.78 AML other m 2021-12-18T23:41:10.42
IV.AIO.HHN. ML:1.6 0.00027800000000000004 0.18 AML other m 2021-12-18T23:41:10.57
IV.ECTS.HHE. ML:1.6 0.0001805 1.7 AML other m 2021-12-18T23:41:13.87
IV.ECTS.HHN. ML:1.6 0.00022 0.9 AML other m 2021-12-18T23:41:15.48
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