Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 02-12-2021 and time 03:06:28 (Italy) in region 4 km W Maniace (CT)

A magnitude ML 1.8 earthquake occured in region: 4 km W Maniace (CT), on

  • 02-12-2021 02:06:28 (UTC)
  • 02-12-2021 03:06:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8710, 14.7620 at 17 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
Maniace CT 4 3765 3765
Cesarò ME 5 2439 6204
San Teodoro ME 6 1403 7607
Maletto CT 10 3920 11527
Bronte CT 11 19172 30699
Randazzo CT 16 10900 41599
Troina EN 17 9373 50972
Longi ME 18 1473 52445
Alcara li Fusi ME 18 1980 54425
Galati Mamertino ME 18 2627 57052
Santa Domenica Vittoria ME 18 980 58032
Floresta ME 18 485 58517
Tortorici ME 19 6435 64952

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km NW of Acireale (52622 inhabitants)
50 Km NW of Catania (314555 inhabitants)
75 Km NE of Caltanissetta (63360 inhabitants)
78 Km W of Messina (238439 inhabitants)
82 Km W of Reggio di Calabria (183035 inhabitants)
100 Km NE of Gela (75827 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 1.8 2021-12-02
02:06:28		 37.8713 14.7622 17 2022-03-30
13:04:20		 Bollettino Sismico Italiano INGV 98341781
Reviewed
Rev100 		ML 1.9 2021-12-02
02:06:28		 37.8707 14.7613 18 2021-12-02
04:14:54		 Sala Sismica INGV-Roma 98034821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-02 02:06:28 ± 0.13
Latitude 37.8713 ± 0.0054
Longitude 14.7622 ± 0.0080
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 98341781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 686
Semi-minor axis of confidence ellipse (meter) 412
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 58
Circular confidence region, given by single value of horizontal uncertainty (meter) 690.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.08813
Epicentral distance of station farthest from the epicenter (degree) 0.54049
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 98341781
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-09 11:05:43

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 98034821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-02 02:32:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPNC.HHZ. 2021-12-02T02:06:39.31 0.1 undecidable manual P 59 59.9955 98 -0.24 90
IV.MCPD.HHZ. 2021-12-02T02:06:39.38 0.6 undecidable manual S 354 27.75 111 0.37 46
IV.GALF.HHZ. 2021-12-02T02:06:38.73 0.6 undecidable manual S 224 24.753 114 0.45 46
IV.MSFR.HHZ. 2021-12-02T02:06:38.26 0.6 undecidable manual S 320 23.4543 116 0.3 47
IV.MUCR.HHZ. 2021-12-02T02:06:37.47 0.3 undecidable manual S 27 21.3675 119 -0.01 75
IV.EPOZ.HHZ. 2021-12-02T02:06:37.26 1.0 undecidable manual P 120 43.4232 102 0.22 23
IV.ECZM.HHZ. 2021-12-02T02:06:37.24 0.3 undecidable manual S 141 19.869 122 0.1 74
IV.ESVO.HHZ. 2021-12-02T02:06:37.36 0.6 undecidable manual S 124 19.4694 122 0.31 47
IV.EFIU.HHE. 2021-12-02T02:06:36.84 1.0 undecidable manual P 103 40.3263 103 0.28 23
IV.ESCV.HHZ. 2021-12-02T02:06:36.08 0.3 undecidable manual S 161 14.5743 132 0.09 75
IV.ESAL.HHZ. 2021-12-02T02:06:36.35 0.1 undecidable manual P 111 35.0427 105 0.57 86
IV.ECBD.HHZ. 2021-12-02T02:06:35.28 0.1 undecidable manual P 109 30.1476 109 0.22 95
IV.EPZF.HHZ. 2021-12-02T02:06:35.14 0.3 undecidable manual S 122 9.7791 145 -0.02 77
IV.NOV.HHE. 2021-12-02T02:06:35.78 0.1 undecidable manual P 62 37.0296 104 -0.3 92
IV.ESML.HHZ. 2021-12-02T02:06:35.56 0.1 undecidable manual P 160 29.9478 109 0.54 89
IV.MSFR.HHZ. 2021-12-02T02:06:34.11 0.1 undecidable manual P 320 23.4543 116 0.01 100
IV.MCPD.HHZ. 2021-12-02T02:06:34.67 0.1 undecidable manual P 354 27.75 111 -0.04 99
IV.ECHR.HNZ. 2021-12-02T02:06:34.27 0.6 undecidable manual P 147 24.4533 115 0.03 50
IV.EMNR.HHZ. 2021-12-02T02:06:34.28 0.1 undecidable manual P 105 23.8539 116 0.12 98
IV.ECTS.HHZ. 2021-12-02T02:06:34.95 0.1 undecidable manual P 88 31.4463 108 -0.3 93
IV.EPIT.HHZ. 2021-12-02T02:06:34.60 0.1 undecidable manual P 104 26.6511 112 0.05 99
IV.EMPL.HHZ. 2021-12-02T02:06:34.86 1.0 undecidable manual P 139 28.0497 111 0.1 24
IV.GALF.HHZ. 2021-12-02T02:06:34.05 0.1 undecidable manual P 224 24.753 114 -0.23 95
IV.EMCN.HHZ. 2021-12-02T02:06:34.53 0.1 undecidable manual P 110 25.3524 114 0.16 97
IV.ECZM.HHZ. 2021-12-02T02:06:33.32 0.1 undecidable manual P 141 19.869 122 -0.3 95
IV.ESVO.HHZ. 2021-12-02T02:06:33.61 0.3 undecidable manual P 124 19.4694 122 0.04 75
IV.MUCR.HHZ. 2021-12-02T02:06:33.70 0.1 undecidable manual P 27 21.3675 119 -0.12 98
IV.EPZF.HHZ. 2021-12-02T02:06:32.09 0.1 undecidable manual P 122 9.7791 145 -0.39 94
IV.ESCV.HHZ. 2021-12-02T02:06:32.10 0.1 undecidable manual P 161 14.5743 132 -0.86 79
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MUCR.HHE. ML:1.9 0.0004165 0.42 AML other m 2021-12-02T02:06:37.51
IV.MUCR.HHN. ML:1.8 0.000343 0.28 AML other m 2021-12-02T02:06:38.20
IV.MCPD.HHE. ML:1.9 0.000402 0.4 AML other m 2021-12-02T02:06:39.88
IV.MCPD.HHN. ML:1.6 0.00020250000000000002 0.42 AML other m 2021-12-02T02:06:39.68
IV.ECTS.HHE. ML:1.9 0.000295 0.22 AML other m 2021-12-02T02:06:41.37
IV.ECTS.HHN. ML:1.8 0.00027100000000000003 1.08 AML other m 2021-12-02T02:06:41.85
IV.ESML.HHE. ML:1.9 0.0003255 0.5 AML other m 2021-12-02T02:06:44.16
IV.ESML.HHN. ML:1.7 0.00022749999999999997 1.32 AML other m 2021-12-02T02:06:46.98
IV.MPNC.HHE. ML:1.9 0.000153 0.5 AML other m 2021-12-02T02:06:57.98
IV.MPNC.HHN. ML:1.8 0.0001225 0.68 AML other m 2021-12-02T02:06:58.21
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