Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 14-11-2021 and time 20:48:18 (Italy) in region 6 km E Gagliano Castelferrato (EN)

A magnitude ML 1.8 earthquake occured in region: 6 km E Gagliano Castelferrato (EN), on

  • 14-11-2021 19:48:18 (UTC)
  • 14-11-2021 20:48:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7240, 14.6060 at 26 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
Gagliano Castelferrato EN 6 3593 3593
Troina EN 7 9373 12966
Regalbuto EN 9 7277 20243
Agira EN 10 8345 28588
Cerami EN 13 2006 30594
Nissoria EN 16 3000 33594
San Teodoro ME 16 1403 34997
Cesarò ME 16 2439 37436
Centuripe EN 17 5470 42906
Capizzi ME 18 3176 46082
Nicosia EN 18 13899 59981
Catenanuova EN 19 4866 64847
Assoro EN 19 5191 70038

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km NW of Catania (314555 inhabitants)
51 Km W of Acireale (52622 inhabitants)
54 Km NE of Caltanissetta (63360 inhabitants)
80 Km NE of Gela (75827 inhabitants)
86 Km N of Vittoria (63339 inhabitants)
90 Km N of Ragusa (73313 inhabitants)
96 Km NW of Siracusa (122291 inhabitants)
97 Km N of Modica (54633 inhabitants)
98 Km SW of Messina (238439 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 2021-11-14
19:48:18		 37.7245 14.6057 26 2022-03-30
13:04:37		 Bollettino Sismico Italiano INGV 100883011
Reviewed
Rev100 		ML 1.7 2021-11-14
19:48:18		 37.72 14.6037 21 2021-11-14
20:04:33		 Sala Sismica INGV-Roma 97467541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-14 19:48:18 ± 0.12
Latitude 37.7245 ± 0.0045
Longitude 14.6057 ± 0.0114
Depth (km) 26 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 100883011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 803
Semi-minor axis of confidence ellipse (meter) 650
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 93
Circular confidence region, given by single value of horizontal uncertainty (meter) 800.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.03417
Epicentral distance of station farthest from the epicenter (degree) 0.97307
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 100883011
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-11 16:56:03

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 97467541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-14 20:04:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ISPIC.EHZ. 2021-11-14T19:48:36.22 0.6 undecidable manual P 166 108.0141 99 -0.09 43
IV.MCPD.HHZ. 2021-11-14T19:48:33.46 0.6 undecidable manual S 14 45.2214 113 0.04 49
IV.HMDC.HHZ. 2021-11-14T19:48:32.88 0.6 undecidable manual P 170 86.3469 101 -0.15 44
IV.HVIT.HHZ. 2021-11-14T19:48:32.30 0.3 undecidable manual P 185 81.5517 102 0 68
IV.MUCR.HHZ. 2021-11-14T19:48:32.89 0.6 undecidable manual S 34 42.4242 115 0.15 49
IV.SSY.HHZ. 2021-11-14T19:48:31.29 0.3 undecidable manual P 147 75.1692 103 -0.06 69
IV.HAGA.HHZ. 2021-11-14T19:48:30.09 0.3 undecidable manual P 135 68.6757 104 -0.28 66
IV.MSFR.HHZ. 2021-11-14T19:48:30.65 0.6 undecidable manual S 358 34.3434 121 -0.18 48
IV.HCRL.HHZ. 2021-11-14T19:48:29.15 0.3 undecidable manual P 142 61.6938 106 -0.19 69
IV.RAFF.HHZ. 2021-11-14T19:48:29.60 0.3 undecidable manual P 201 59.6958 107 0.57 61
IV.HVZN.HHZ. 2021-11-14T19:48:29.24 0.6 undecidable manual P 171 61.3941 106 -0.04 48
IV.AIO.HHZ. 2021-11-14T19:48:29.81 0.3 undecidable manual P 63 61.3941 106 0.52 65
IV.PLLN.EHE. 2021-11-14T19:48:27.84 0.6 undecidable manual P 306 50.3163 110 0.18 46
IV.HLNI.HHZ. 2021-11-14T19:48:27.17 0.1 undecidable manual P 151 47.8188 112 -0.14 95
IV.MUCR.HHZ. 2021-11-14T19:48:26.54 0.3 undecidable manual P 34 42.4242 115 -0.01 73
IV.MCPD.HHZ. 2021-11-14T19:48:26.80 0.1 negative manual P 14 45.2214 113 -0.14 95
IV.MSFR.HHZ. 2021-11-14T19:48:25.10 0.3 undecidable manual P 358 34.3434 121 -0.34 70
IV.GALF.HHZ. 2021-11-14T19:48:25.97 0.6 undecidable manual S 246 3.7962 171 0.09 52
IV.EPZF.HHZ. 2021-11-14T19:48:24.92 0.3 undecidable manual P 63 24.6531 131 0.7 64
IV.ESCV.HHZ. 2021-11-14T19:48:23.61 0.3 undecidable manual P 82 18.5703 140 0.05 77
IV.GALF.HHZ. 2021-11-14T19:48:22.30 0.1 negative manual P 246 3.7962 171 -0.29 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHE. ML:1.9 0.0004933820499999999 0.2048 AML other m 2021-11-14T19:48:27.19
IV.GALF.HHN. ML:2.0 0.0006915000000000001 0.3 AML other m 2021-11-14T19:48:27.70
IV.MSFR.HHN. ML:1.2 0.000051500000000000005 1.1 AML other m 2021-11-14T19:48:31.66
IV.ESCV.HHE. ML:1.8 0.0003445 1.14 AML other m 2021-11-14T19:48:31.71
IV.ESCV.HHN. ML:2.0 0.00044 0.86 AML other m 2021-11-14T19:48:33.50
IV.MSFR.HHE. ML:1.3 0.00005945 1.52 AML other m 2021-11-14T19:48:33.96
IV.MUCR.HHE. ML:1.7 0.000141 0.72 AML other m 2021-11-14T19:48:33.60
IV.MCPD.HHE. ML:1.7 0.00011625 1.52 AML other m 2021-11-14T19:48:33.03
IV.MUCR.HHN. ML:1.7 0.00013595000000000002 0.74 AML other m 2021-11-14T19:48:35.09
IV.MCPD.HHN. ML:1.6 0.00009735 0.3 AML other m 2021-11-14T19:48:35.03
IV.HLNI.HHE. ML:1.7 0.0001076 1.24 AML other m 2021-11-14T19:48:37.92
IV.HLNI.HHN. ML:1.8 0.000133 1.68 AML other m 2021-11-14T19:48:38.02
IV.HAGA.HHE. ML:1.8 0.000089 0.22 AML other m 2021-11-14T19:48:41.09
IV.RAFF.HHE. ML:1.8 0.0001228 1.06 AML other m 2021-11-14T19:48:41.64
IV.RAFF.HHN. ML:1.7 0.0000993 1.42 AML other m 2021-11-14T19:48:41.88
IV.HAGA.HHN. ML:1.7 0.0000736 1.3 AML other m 2021-11-14T19:48:42.03
IV.SSY.HHN. ML:2.4 0.000382 1.34 AML other m 2021-11-14T19:48:45.96
IV.SSY.HHE. ML:2.4 0.00031599999999999993 1.04 AML other m 2021-11-14T19:48:45.33
IV.ISPIC.EHN. ML:2.1 0.0001081 0.8 AML other m 2021-11-14T19:48:51.08
IV.ISPIC.EHE. ML:2.0 0.00007965 0.68 AML other m 2021-11-14T19:48:51.59
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