Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 04-01-2022 and time 01:12:10 (Italy) in region 4 km SE Randazzo (CT)

A magnitude ML 1.4 earthquake occured in region: 4 km SE Randazzo (CT), on

  • 04-01-2022 00:12:10 (UTC)
  • 04-01-2022 01:12:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8550, 14.9750 at 31 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
Randazzo CT 4 10900 10900
Santa Domenica Vittoria ME 7 980 11880
Moio Alcantara ME 8 717 12597
Roccella Valdemone ME 9 666 13263
Maletto CT 10 3920 17183
Malvagna ME 10 733 17916
Castiglione di Sicilia CT 13 3215 21131
Bronte CT 14 19172 40303
Maniace CT 15 3765 44068
Linguaglossa CT 15 5403 49471
Francavilla di Sicilia ME 15 3945 53416
Floresta ME 16 485 53901
Motta Camastra ME 18 845 54746
Piedimonte Etneo CT 19 3963 58709
Montalbano Elicona ME 19 2287 60996
Milo CT 19 1087 62083
Sant'Alfio CT 19 1582 63665

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NW of Acireale (52622 inhabitants)
40 Km N of Catania (314555 inhabitants)
63 Km SW of Messina (238439 inhabitants)
65 Km W of Reggio di Calabria (183035 inhabitants)
90 Km E of Caltanissetta (63360 inhabitants)
93 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 1.4 2022-01-04
00:12:10		 37.8552 14.9748 31 2022-07-08
12:33:33		 Bollettino Sismico Italiano INGV 101604451
Reviewed
Rev200 		ML 1.5 2022-01-04
00:12:10		 37.851 14.967 23 2022-05-03
21:59:49		 Sala Operativa INGV_OE (Catania) 99297181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-04 00:12:10 ± 0.16
Latitude 37.8552 ± 0.0054
Longitude 14.9748 ± 0.0103
Depth (km) 31 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 101604451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 890
Semi-minor axis of confidence ellipse (meter) 18
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 269
Circular confidence region, given by single value of horizontal uncertainty (meter) 890.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 47
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) 0.05576
Epicentral distance of station farthest from the epicenter (degree) 0.70147
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 32
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 101604451
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-05-03 21:59:34

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 99297181
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2022-01-04 00:23:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHZ. 2022-01-04T00:12:34.73 0.6 undecidable manual S 174 77.8665 107 0.15 43
IV.HAGA.HHZ. 2022-01-04T00:12:31.48 0.6 undecidable manual S 166 65.1903 110 0.1 44
IV.HLNI.HHZ. 2022-01-04T00:12:28.99 0.3 undecidable manual S 189 56.8986 114 -0.34 65
IV.MSFR.HHZ. 2022-01-04T00:12:25.32 0.6 undecidable manual S 301 38.9277 124 0.21 46
IV.MCPD.HHZ. 2022-01-04T00:12:24.92 0.6 undecidable manual S 324 36.3414 126 0.39 45
IV.SSY.HHZ. 2022-01-04T00:12:24.22 0.3 undecidable manual P 174 77.8665 107 -0.21 64
IV.AIO.HHZ. 2022-01-04T00:12:22.34 0.6 undecidable manual S 60 26.0517 136 -0.12 48
3D.OEM9.HNE. 2022-01-04T00:12:22.39 0.3 undecidable manual P 1 59.0964 113 0.68 59
IV.HAGA.HHZ. 2022-01-04T00:12:22.54 0.3 undecidable manual P 166 65.1903 110 -0.04 68
IV.ESCV.HHZ. 2022-01-04T00:12:21.58 0.6 undecidable manual S 229 18.4704 146 0.39 46
IV.HLNI.HHZ. 2022-01-04T00:12:21.13 0.1 undecidable manual P 189 56.8986 114 -0.26 87
IV.MUCR.HHZ. 2022-01-04T00:12:21.41 0.6 undecidable manual S 337 22.6551 141 -0.45 44
IV.ECBD.HHZ. 2022-01-04T00:12:20.31 0.6 undecidable manual S 130 12.876 155 -0.15 48
IV.MPNC.HHZ. 2022-01-04T00:12:20.16 0.3 undecidable manual P 46 46.2204 119 0.25 67
IV.MILZ.HHN. 2022-01-04T00:12:20.92 0.3 undecidable manual P 26 51.3153 116 0.31 66
IV.ESVO.HHZ. 2022-01-04T00:12:20.38 0.6 undecidable manual S 195 9.3795 162 0.25 47
IV.EMCN.HHZ. 2022-01-04T00:12:20.52 0.6 undecidable manual S 144 8.7801 163 0.45 45
IV.EMNR.HHZ. 2022-01-04T00:12:20.23 0.6 undecidable manual S 133 6.1938 168 0.33 47
IV.EPIT.HHZ. 2022-01-04T00:12:20.29 0.6 undecidable manual S 124 8.6802 163 0.22 48
IV.ECTS.HHZ. 2022-01-04T00:12:19.58 0.6 undecidable manual S 77 13.1757 155 -0.92 38
IV.EPZF.HHZ. 2022-01-04T00:12:19.96 0.6 undecidable manual S 252 10.878 159 -0.3 47
IV.MSFR.HHZ. 2022-01-04T00:12:19.12 0.3 undecidable manual P 301 38.9277 124 0.16 70
IV.EPOZ.HHZ. 2022-01-04T00:12:18.17 0.3 undecidable manual P 137 27.6501 134 0.57 63
IV.MCPD.HHZ. 2022-01-04T00:12:18.43 0.1 undecidable manual P 324 36.3414 126 -0.19 91
IV.AIO.HHZ. 2022-01-04T00:12:17.34 0.1 positive manual P 60 26.0517 136 -0.08 95
IV.EVRN.HHZ. 2022-01-04T00:12:17.54 0.3 undecidable manual P 142 23.1546 140 0.41 67
IV.EMPL.HHZ. 2022-01-04T00:12:17.74 0.3 undecidable manual P 181 19.5693 145 0.95 55
IV.EPDN.HHZ. 2022-01-04T00:12:17.15 0.3 undecidable manual P 160 10.5783 160 1.01 54
IV.ESML.HHZ. 2022-01-04T00:12:17.64 0.6 undecidable manual P 198 27.5502 134 0.05 48
IV.MUCR.HHZ. 2022-01-04T00:12:16.73 0.1 undecidable manual P 337 22.6551 141 -0.35 90
IV.ESVO.HHZ. 2022-01-04T00:12:16.09 0.1 undecidable manual P 195 9.3795 162 0.01 100
IV.ESPC.HHZ. 2022-01-04T00:12:16.14 0.1 undecidable manual P 166 18.5703 146 -0.57 87
IV.ECBD.HHZ. 2022-01-04T00:12:16.16 0.1 undecidable manual P 130 12.876 155 -0.11 97
IV.ECNE.HHZ. 2022-01-04T00:12:16.01 0.3 undecidable manual P 167 10.2786 160 -0.11 73
IV.ESLN.HHZ. 2022-01-04T00:12:16.66 0.3 undecidable manual P 180 17.9709 147 0.01 74
IV.EMFS.HHZ. 2022-01-04T00:12:16.43 0.3 undecidable manual P 172 15.1737 152 0 74
IV.ECHR.HNZ. 2022-01-04T00:12:16.84 0.3 undecidable manual P 196 19.4694 145 0.06 73
IV.ESCV.HHZ. 2022-01-04T00:12:16.75 0.1 undecidable manual P 229 18.4704 146 0.06 98
IV.ESAL.HHZ. 2022-01-04T00:12:16.67 0.3 undecidable manual P 128 17.871 147 0.03 73
IV.EFIU.HHZ. 2022-01-04T00:12:16.95 0.3 undecidable manual P 109 21.867 142 -0.05 73
IV.ECZM.HHZ. 2022-01-04T00:12:16.31 0.6 undecidable manual P 204 15.0738 152 -0.12 48
IV.EMFO.HHZ. 2022-01-04T00:12:16.51 0.3 undecidable manual P 143 16.6722 149 -0.04 74
IV.EPIT.HHZ. 2022-01-04T00:12:15.94 0.3 undecidable manual P 124 8.6802 163 -0.1 74
IV.EPZF.HHZ. 2022-01-04T00:12:15.83 0.1 undecidable manual P 252 10.878 159 -0.33 93
IV.EMNR.HHZ. 2022-01-04T00:12:15.82 0.1 negative manual P 133 6.1938 168 -0.13 98
IV.EMCN.HHZ. 2022-01-04T00:12:15.89 0.1 undecidable manual P 144 8.7801 163 -0.16 97
IV.ECTS.HHZ. 2022-01-04T00:12:15.87 0.1 undecidable manual P 77 13.1757 155 -0.42 91
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHE. ML:1.6 0.000182 0.38 AML other m 2022-01-04T00:12:20.14
IV.EPIT.HHN. ML:1.7 0.00022753725 0.24 AML other m 2022-01-04T00:12:20.52
IV.EPZF.HHN. ML:1.3 0.000084273095 0.26 AML other m 2022-01-04T00:12:20.42
IV.EPIT.HHE. ML:1.7 0.0002252209 0.32 AML other m 2022-01-04T00:12:20.60
IV.MUCR.HHN. ML:1.2 0.000058919974999999997 0.28 AML other m 2022-01-04T00:12:21.67
IV.MUCR.HHE. ML:1.5 0.00011094917 0.3 AML other m 2022-01-04T00:12:21.69
IV.ESCV.HHE. ML:1.3 0.00008872699 0.14 AML other m 2022-01-04T00:12:22.55
IV.AIO.HHN. ML:1.0 0.00003953789 0.14 AML other m 2022-01-04T00:12:22.61
IV.AIO.HHE. ML:1.0 0.00003872539 0.42 AML other m 2022-01-04T00:12:23.12
IV.MCPD.HHN. ML:0.8 0.0000205173 0.64 AML other m 2022-01-04T00:12:25.21
IV.MCPD.HHE. ML:0.7 0.0000132663175 0.36 AML other m 2022-01-04T00:12:25.12
IV.HLNI.HHN. ML:1.5 0.00005443712 0.2 AML other m 2022-01-04T00:12:29.32
IV.HLNI.HHE. ML:1.4 0.00004314742 0.12 AML other m 2022-01-04T00:12:29.31
IV.SSY.HNE. ML:1.7 0.000066825545 1.27 AML other m 2022-01-04T00:12:34.80
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