Earthquake with magnitude of ML 1.6 on date 24-11-2023 and time 20:27:04 (UTC) in region 1 km W Tredozio (FC)

A magnitude ML 1.6 earthquake occured in region: 1 km W Tredozio (FC), on

  • 24-11-2023 20:27:04 (UTC)
  • 24-11-2023 21:27:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0820, 11.7350 at 27 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Tredozio FC 1 1212 1212
Portico e San Benedetto FC 7 756 1968
Rocca San Casciano FC 9 1910 3878
Modigliana FC 10 4560 8438
Marradi FI 10 3139 11577
Premilcuore FC 12 799 12376
Dovadola FC 13 1653 14029
Palazzuolo sul Senio FI 15 1154 15183
Brisighella RA 16 7639 22822
Galeata FC 17 2516 25338
Civitella di Romagna FC 18 3786 29124
Casola Valsenio RA 18 2617 31741
San Godenzo FI 20 1167 32908
Predappio FC 20 6346 39254

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SW of Faenza (58541 inhabitants)
29 Km SW of Forlì (117913 inhabitants)
30 Km S of Imola (69797 inhabitants)
41 Km W of Cesena (96758 inhabitants)
52 Km NE of Firenze (382808 inhabitants)
53 Km SW of Ravenna (159116 inhabitants)
56 Km SE of Bologna (386663 inhabitants)
56 Km E of Prato (191150 inhabitants)
57 Km NE of Scandicci (50609 inhabitants)
66 Km W of Rimini (147750 inhabitants)
67 Km E of Pistoia (90315 inhabitants)
69 Km N of Arezzo (99543 inhabitants)
85 Km S of Ferrara (133155 inhabitants)
90 Km SE of Modena (184973 inhabitants)
91 Km NE of Siena (53903 inhabitants)
96 Km W of Pesaro (94582 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 1.6 2023-11-24
20:27:04
44.0815 11.7353 27 2023-11-24
20:34:25
Sala Sismica INGV-Roma 123407651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-11-24 20:27:04 ± 0.25
Latitude 44.0815 ± 0.0108
Longitude 11.7353 ± 0.0113
Depth (km) 27 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123407651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1200
Semi-minor axis of confidence ellipse (meter) 230
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 194
Circular confidence region, given by single value of horizontal uncertainty (meter) 1200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.44786
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 123407651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-11-24 20:34:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHZ. 2023-11-24T20:27:26.77 3.0 negative manual P -3.09 0
IV.BRSN.HNZ. 2023-11-24T20:27:19.67 3.0 negative manual P -0.1 0
IV.OSSC.HHZ. 2023-11-24T20:27:18.37 3.0 undecidable manual P 0.27 0
IT.MCS.HGN. 2023-11-24T20:27:17.70 0.6 undecidable manual S 108 31.1466 126 0.83 40
IV.RUFI.EHZ. 2023-11-24T20:27:17.40 0.6 undecidable manual S 214 32.4453 124 0.24 47
IV.VMGN.HHZ. 2023-11-24T20:27:15.10 0.3 undecidable manual S 229 21.4674 137 0.18 73
IV.VISG.HHZ. 2023-11-24T20:27:15.90 0.6 undecidable manual S 297 26.751 130 -0.05 49
IV.SFI.HNE. 2023-11-24T20:27:15.30 0.6 undecidable manual S 156 21.5673 137 0.36 47
IV.FNVD.HHZ. 2023-11-24T20:27:14.43 0.1 undecidable manual P 281 49.7169 113 0.22 90
IT.MOG.HNE. 2023-11-24T20:27:13.40 0.6 undecidable manual S 14 10.1787 157 0.12 50
IT.MRR.HGN. 2023-11-24T20:27:13.10 0.6 undecidable manual S 260 10.6782 156 -0.23 49
IV.MTRZ.HHZ. 2023-11-24T20:27:12.81 0.1 undecidable manual P 316 35.6421 122 0.55 85
IT.MCS.HGN. 2023-11-24T20:27:11.43 0.1 undecidable manual P 108 31.1466 126 -0.27 92
IV.RUFI.EHZ. 2023-11-24T20:27:11.80 0.6 negative manual P 214 32.4453 124 -0.06 48
IV.BOSL.HHZ. 2023-11-24T20:27:11.92 0.1 undecidable manual P 240 33.2445 124 -0.04 97
IV.VISG.HHZ. 2023-11-24T20:27:10.92 0.1 positive manual P 297 26.751 130 -0.24 95
IV.SFI.HNE. 2023-11-24T20:27:10.64 0.1 undecidable manual P 156 21.5673 137 0.06 100
IV.VMGN.HHZ. 2023-11-24T20:27:10.48 0.3 negative manual P 229 21.4674 137 -0.09 74
IT.MOG.HNE. 2023-11-24T20:27:09.29 0.1 undecidable manual P 14 10.1787 157 -0.33 96
IT.MRR.HGN. 2023-11-24T20:27:09.24 0.1 undecidable manual P 260 10.6782 156 -0.41 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VMGN.HHE. ML:1.1 0.000059999999999999995 0.36 AML other m 2023-11-24T20:27:15.43
IV.VMGN.HHN. ML:1.2 0.00006285000000000001 0.44 AML other m 2023-11-24T20:27:15.27
IV.VISG.HHN. ML:1.7 0.00020081304999999998 0.192 AML other m 2023-11-24T20:27:16.14
IV.VISG.HHE. ML:1.6 0.0001585 0.48 AML other m 2023-11-24T20:27:16.50
IV.MTRZ.HHN. ML:2.0 0.000277 0.36 AML other m 2023-11-24T20:27:21.42
IV.MTRZ.HHE. ML:1.8 0.000175 1.64 AML other m 2023-11-24T20:27:21.86
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download