Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 24-11-2021 and time 19:57:52 (Italy) in region 3 km W Capizzi (ME)

A magnitude ML 1.8 earthquake occured in region: 3 km W Capizzi (ME), on

  • 24-11-2021 18:57:52 (UTC)
  • 24-11-2021 19:57:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8590, 14.4520 at 39 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
Capizzi ME 3 3176 3176
Cerami EN 7 2006 5182
Mistretta ME 11 4791 9973
Castel di Lucio ME 13 1294 11267
Nicosia EN 13 13899 25166
Sperlinga EN 13 805 25971
Troina EN 15 9373 35344
Reitano ME 16 806 36150
Gagliano Castelferrato EN 18 3593 39743
Pettineo ME 19 1350 41093
Caronia ME 19 3364 44457
Motta d'Affermo ME 19 739 45196
Santo Stefano di Camastra ME 20 4694 49890

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km NE of Caltanissetta (63360 inhabitants)
69 Km NW of Catania (314555 inhabitants)
69 Km W of Acireale (52622 inhabitants)
86 Km E of Bagheria (55387 inhabitants)
90 Km N of Gela (75827 inhabitants)
98 Km NE of Agrigento (59770 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 2021-11-24
18:57:52		 37.8588 14.4518 39 2022-03-30
13:04:22		 Bollettino Sismico Italiano INGV 98754921
Reviewed
Rev100 		ML 1.7 2021-11-24
18:57:52		 37.8668 14.4698 39 2021-11-24
19:25:54		 Sala Sismica INGV-Roma 97760251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-24 18:57:52 ± 0.14
Latitude 37.8588 ± 0.0090
Longitude 14.4518 ± 0.0103
Depth (km) 39 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 98754921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 998
Semi-minor axis of confidence ellipse (meter) 529
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 227
Circular confidence region, given by single value of horizontal uncertainty (meter) 1000.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.17357
Epicentral distance of station farthest from the epicenter (degree) 0.86785
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 98754921
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-10 18:01:16

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 97760251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-24 19:25:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HLNI.HHZ. 2021-11-24T18:58:14.26 0.6 undecidable manual S 147 67.5768 92 0.26 45
IV.SSY.HHZ. 2021-11-24T18:58:08.24 0.3 undecidable manual P 145 95.1381 91 0.05 67
IV.HVIT.HHE. 2021-11-24T18:58:08.31 0.1 undecidable manual P 176 96.3258 91 -0.03 90
IV.GIB.HHE. 2021-11-24T18:58:08.31 0.3 undecidable manual S 291 40.0266 112 0.17 72
IV.MCPD.HHE. 2021-11-24T18:58:07.75 0.6 undecidable manual S 40 37.8288 116 0.03 50
IV.PLLN.EHN. 2021-11-24T18:58:06.77 0.6 undecidable manual S 299 30.8469 126 0.36 47
IV.CSLB.HHE. 2021-11-24T18:58:06.78 0.6 undecidable manual S 284 35.5422 119 -0.5 46
IV.HCRL.HHZ. 2021-11-24T18:58:06.37 0.3 undecidable manual P 141 81.7515 91 -0.17 67
IV.RAFF.HHZ. 2021-11-24T18:58:05.51 0.1 undecidable manual P 186 70.9734 92 0.31 89
IV.MSFR.HHE. 2021-11-24T18:58:05.36 0.6 undecidable manual S 32 22.9548 138 0.2 50
IV.GALF.HHZ. 2021-11-24T18:58:04.65 0.6 undecidable manual S 148 19.2696 144 -0.01 51
IV.HLNI.HHZ. 2021-11-24T18:58:04.23 0.1 undecidable manual P 147 67.5768 92 -0.55 84
IV.EPZF.HHZ. 2021-11-24T18:58:02.06 0.3 undecidable manual P 96 35.742 119 1.15 52
IV.GIB.HHE. 2021-11-24T18:58:01.42 0.3 undecidable manual P 291 40.0266 112 0.03 75
IV.MCPD.HHE. 2021-11-24T18:58:01.03 0.1 undecidable manual P 40 37.8288 116 -0.12 97
IV.MUCR.HHE. 2021-11-24T18:58:01.81 0.3 undecidable manual P 61 42.2244 109 0.16 73
IV.PLLN.EHN. 2021-11-24T18:58:00.30 0.3 undecidable manual P 299 30.8469 126 -0.1 75
IV.CSLB.HHE. 2021-11-24T18:58:00.85 0.3 undecidable manual P 284 35.5422 119 -0.05 75
IV.MSFR.HHE. 2021-11-24T18:57:59.30 0.1 undecidable manual P 32 22.9548 138 -0.38 95
IV.GALF.HHZ. 2021-11-24T18:57:59.16 0.1 undecidable manual P 148 19.2696 144 -0.23 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HNE. ML:1.4 0.000078711295 0.5248 AML other m 2021-11-24T18:58:02.51
IV.GALF.HHE. ML:1.9 0.00025068374999999996 0.3712 AML other m 2021-11-24T18:58:06.09
IV.GALF.HHN. ML:1.9 0.00027018255 0.3712 AML other m 2021-11-24T18:58:07.21
IV.GALF.HNN. ML:1.6 0.00012117865999999999 0.5504 AML other m 2021-11-24T18:58:08.62
IV.HLNI.HHE. ML:1.6 0.000055708595 1.4144 AML other m 2021-11-24T18:58:15.71
IV.RAFF.HHE. ML:1.7 0.0000713 1.72 AML other m 2021-11-24T18:58:17.98
IV.RAFF.HHN. ML:1.6 0.000052083359999999994 0.2432 AML other m 2021-11-24T18:58:17.13
IV.HLNI.HHN. ML:1.3 0.000032416075 0.128 AML other m 2021-11-24T18:58:18.07
IV.HCRL.HHE. ML:2.1 0.0001367888 0.1792 AML other m 2021-11-24T18:58:18.37
IV.HCRL.HHN. ML:1.8 0.00006256628999999999 0.1152 AML other m 2021-11-24T18:58:19.38
IV.SSY.HHE. ML:2.4 0.00023273095 0.1792 AML other m 2021-11-24T18:58:21.30
IV.SSY.HNN. ML:2.1 0.00013249125 0.2048 AML other m 2021-11-24T18:58:22.43
IV.SSY.HHN. ML:2.6 0.00040731534999999996 0.192 AML other m 2021-11-24T18:58:22.44
IV.SSY.HNE. ML:2.0 0.000099630805 0.2048 AML other m 2021-11-24T18:58:22.64
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