Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 18-01-2024 and time 21:17:21 (Italy) in region 3 km W Verghereto (FC)

A magnitude ML 1.1 earthquake occured in region: 3 km W Verghereto (FC), on

  • 18-01-2024 20:17:21 (UTC)
  • 18-01-2024 21:17:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.8000, 11.9670 at 9 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Verghereto FC 3 1907 1907
Bagno di Romagna FC 7 6026 7933
Chiusi della Verna AR 11 2023 9956
Casteldelci RN 15 407 10363
Pieve Santo Stefano AR 16 3183 13546
Bibbiena AR 17 12241 25787
Chitignano AR 17 899 26686
Santa Sofia FC 17 4136 30822
Caprese Michelangelo AR 17 1426 32248
Poppi AR 18 6160 38408
Sarsina FC 19 3446 41854
Castel Focognano AR 20 3149 45003
Pratovecchio Stia AR 20 5845 50848

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km N of Arezzo (99543 inhabitants)
44 Km SW of Cesena (96758 inhabitants)
48 Km S of Forlì (117913 inhabitants)
55 Km S of Faenza (58541 inhabitants)
56 Km SW of Rimini (147750 inhabitants)
57 Km E of Firenze (382808 inhabitants)
63 Km E of Scandicci (50609 inhabitants)
65 Km SE of Imola (69797 inhabitants)
70 Km E of Prato (191150 inhabitants)
71 Km S of Ravenna (159116 inhabitants)
74 Km NE of Siena (53903 inhabitants)
77 Km W of Pesaro (94582 inhabitants)
84 Km NW of Perugia (166134 inhabitants)
85 Km W of Fano (60888 inhabitants)
85 Km E of Pistoia (90315 inhabitants)
92 Km SE of Bologna (386663 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
Reviewed
Rev100 		ML 1.1 2024-01-18
20:17:21		 43.8 11.967 9 2024-01-18
20:25:05		 Sala Sismica INGV-Roma 124733841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-18 20:17:21 ± 0.05
Latitude 43.8000 ± 0.0036
Longitude 11.9670 ± 0.0050
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124733841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 428
Semi-minor axis of confidence ellipse (meter) 227
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 57
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
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 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.13580
Epicentral distance of station farthest from the epicenter (degree) 0.51441
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 124733841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-18 20:25:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2024-01-18T20:17:38.89 0.6 undecidable manual S 123 54.2013 50 0.05 46
IV.BOSL.HHZ. 2024-01-18T20:17:37.82 0.3 undecidable manual S 287 49.617 50 0.21 68
IV.LMD.HHZ. 2024-01-18T20:17:34.24 0.6 undecidable manual S 326 37.1295 50 -0.04 48
IV.RUFI.EHZ. 2024-01-18T20:17:34.08 0.6 undecidable manual S 277 36.8298 50 -0.14 47
IV.VMGN.HHZ. 2024-01-18T20:17:34.79 0.6 undecidable manual S 296 38.7279 50 0.08 47
IV.ATMI.HHZ. 2024-01-18T20:17:32.33 0.3 undecidable manual P 155 57.0984 50 0.4 64
IV.CAFI.HHZ. 2024-01-18T20:17:31.28 0.1 undecidable manual P 180 52.2033 50 0.1 92
IV.PARC.HHZ. 2024-01-18T20:17:31.09 0.6 undecidable manual S 128 27.4503 108 -0.37 45
IV.PIEI.HHZ. 2024-01-18T20:17:31.47 0.3 undecidable manual P 123 54.2013 50 -0.02 70
IV.BOSL.HHZ. 2024-01-18T20:17:30.91 0.6 undecidable manual P 287 49.617 50 0.13 46
IT.MCS.HGN. 2024-01-18T20:17:30.94 0.6 undecidable manual S 27 24.2535 110 0.55 44
IV.CRE.HHZ. 2024-01-18T20:17:29.28 0.6 undecidable manual S 184 20.1687 114 0.2 48
IV.BADI.EHZ. 2024-01-18T20:17:29.01 1.0 positive manual P 145 39.1275 50 -0.16 23
IV.RUFI.EHZ. 2024-01-18T20:17:28.52 0.6 positive manual P 277 36.8298 50 -0.29 45
IV.VMGN.HHZ. 2024-01-18T20:17:28.94 0.1 undecidable manual P 296 38.7279 50 -0.17 93
IV.LMD.HHZ. 2024-01-18T20:17:28.66 0.1 undecidable manual P 326 37.1295 50 -0.2 93
IV.SFI.EHZ. 2024-01-18T20:17:27.43 0.6 undecidable manual S 320 15.0738 121 -0.09 49
IT.MCS.HGN. 2024-01-18T20:17:26.61 0.1 undecidable manual P 27 24.2535 110 0 99
IV.PARC.HHZ. 2024-01-18T20:17:26.97 0.1 undecidable manual P 128 27.4503 108 -0.26 93
IV.CRE.HHZ. 2024-01-18T20:17:25.96 0.1 positive manual P 184 20.1687 114 0.11 97
IV.SFI.EHZ. 2024-01-18T20:17:24.95 0.1 positive manual P 320 15.0738 121 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PARC.HHN. ML:1.0 0.000061266355 0.2176 AML other m 2024-01-18T20:17:32.81
IV.LMD.HHE. ML:1.5 0.00011449999999999999 0.2 AML other m 2024-01-18T20:17:34.44
IV.LMD.HHN. ML:1.5 0.0001094 0.48 AML other m 2024-01-18T20:17:35.09
IV.PARC.HHE. ML:0.9 0.000045835849999999996 0.2816 AML other m 2024-01-18T20:17:31.52
IV.SFI.EHE. ML:1.4 0.0002248882 0.1152 AML other m 2024-01-18T20:17:27.50
IV.SFI.EHN. ML:1.0 0.00010306037500000001 0.0896 AML other m 2024-01-18T20:17:28.26
IV.CRE.HHE. ML:1.2 0.000128377665 0.2944 AML other m 2024-01-18T20:17:32.25
IV.CRE.HHN. ML:1.4 0.00017234345 0.2048 AML other m 2024-01-18T20:17:32.09
IV.RUFI.EHE. ML:1.3 0.00006767896499999999 0.2432 AML other m 2024-01-18T20:17:34.21
IV.RUFI.EHN. ML:1.2 0.000062219535 0.2176 AML other m 2024-01-18T20:17:34.25
IV.VMGN.HHE. ML:1.2 0.00005826861 0.1408 AML other m 2024-01-18T20:17:34.89
IV.VMGN.HHN. ML:1.0 0.000040235359999999995 0.192 AML other m 2024-01-18T20:17:35.51
IV.BOSL.HHE. ML:0.6 0.000011338309999999997 0.1152 AML other m 2024-01-18T20:17:38.59
IV.BOSL.HHN. ML:0.9 0.00001895581 0.1152 AML other m 2024-01-18T20:17:38.95
IV.PIEI.HHE. ML:1.0 0.0000250635645 0.1024 AML other m 2024-01-18T20:17:40.70
IV.PIEI.HHN. ML:0.8 0.000013219705000000002 0.1792 AML other m 2024-01-18T20:17:39.96
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