Earthquake with magnitude of ML 0.7 on date 24-09-2023 and time 21:44:24 (Italy) in region 5 km W Tredozio (FC)

A magnitude ML 0.7 earthquake occured in region: 5 km W Tredozio (FC), on

  • 24-09-2023 19:44:24 (UTC)
  • 24-09-2023 21:44:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0730, 11.6840 at 8 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 5 1212 1212
Marradi FI 6 3139 4351
Portico e San Benedetto FC 9 756 5107
Palazzuolo sul Senio FI 12 1154 6261
Modigliana FC 13 4560 10821
Rocca San Casciano FC 13 1910 12731
Premilcuore FC 13 799 13530
San Godenzo FI 17 1167 14697
Dovadola FC 17 1653 16350
Casola Valsenio RA 18 2617 18967
Brisighella RA 18 7639 26606

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SW of Faenza (58541 inhabitants)
31 Km S of Imola (69797 inhabitants)
33 Km SW of Forlì (117913 inhabitants)
45 Km W of Cesena (96758 inhabitants)
48 Km NE of Firenze (382808 inhabitants)
52 Km E of Prato (191150 inhabitants)
53 Km NE of Scandicci (50609 inhabitants)
54 Km SE of Bologna (386663 inhabitants)
56 Km SW of Ravenna (159116 inhabitants)
63 Km E of Pistoia (90315 inhabitants)
69 Km N of Arezzo (99543 inhabitants)
71 Km W of Rimini (147750 inhabitants)
85 Km S of Ferrara (133155 inhabitants)
88 Km SE of Modena (184973 inhabitants)
89 Km NE of Siena (53903 inhabitants)
98 Km E of Lucca (89046 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 0.7 2023-09-24
19:44:24
44.073 11.6843 8 2023-09-24
19:49:27
Sala Sismica INGV-Roma 121429081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-24 19:44:24 ± 0.18
Latitude 44.0730 ± 0.0045
Longitude 11.6843 ± 0.0063
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121429081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 570
Semi-minor axis of confidence ellipse (meter) 207
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 304
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
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) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.01709
Epicentral distance of station farthest from the epicenter (degree) 0.26620
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 121429081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-24 19:49:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RUFI.EHZ. 2023-09-24T19:44:34.86 0.6 undecidable manual S 208 29.5482 105 0.06 48
IV.BOSL.HHE. 2023-09-24T19:44:34.96 0.6 undecidable manual S 238 29.3484 105 0.25 46
IV.VISG.HHZ. 2023-09-24T19:44:33.08 0.6 undecidable manual S 303 23.6541 108 0.24 46
IV.SEI.HHZ. 2023-09-24T19:44:33.78 0.6 undecidable manual S 266 26.0517 107 0.16 47
IV.SFI.EHZ. 2023-09-24T19:44:32.69 0.6 undecidable manual S 145 22.755 109 0.17 47
IV.RINC.EHZ. 2023-09-24T19:44:32.69 0.3 undecidable manual S 197 21.5673 110 0.54 65
IV.VMGN.HHZ. 2023-09-24T19:44:31.27 0.6 undecidable manual S 223 17.871 113 0.33 46
IV.RUFI.EHZ. 2023-09-24T19:44:30.10 0.6 positive manual P 208 29.5482 105 -0.21 46
IV.VISG.HHZ. 2023-09-24T19:44:29.16 0.6 undecidable manual P 303 23.6541 108 -0.03 48
IT.MOG.HNZ. 2023-09-24T19:44:29.99 0.3 undecidable manual S 31 12.6762 122 0.66 63
IV.SEI.HHZ. 2023-09-24T19:44:29.27 1.0 undecidable manual P 266 26.0517 107 -0.36 22
IV.BOSL.HHE. 2023-09-24T19:44:29.81 0.1 undecidable manual P 238 29.3484 105 -0.45 88
IV.SFI.EHZ. 2023-09-24T19:44:28.97 0.6 positive manual P 145 22.755 109 -0.03 48
IV.RINC.EHZ. 2023-09-24T19:44:28.83 0.1 undecidable manual P 197 21.5673 110 0.04 97
IV.VMGN.HHZ. 2023-09-24T19:44:27.89 0.1 undecidable manual P 223 17.871 113 -0.2 94
IT.MOG.HNZ. 2023-09-24T19:44:27.16 0.1 undecidable manual P 31 12.6762 122 0 99
IT.MRR.HGZ. 2023-09-24T19:44:27.75 0.6 undecidable manual S 261 6.4935 140 0.04 50
IT.MRR.HGZ. 2023-09-24T19:44:26.21 0.1 undecidable manual P 261 6.4935 140 -0.01 100
IV.LMD.HHZ. 2023-09-24T19:44:26.54 0.6 undecidable manual S 75 1.8981 166 -0.42 46
IV.LMD.HHZ. 2023-09-24T19:44:25.41 0.1 undecidable manual P 75 1.8981 166 -0.38 93
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEI.HHN. ML:0.9 0.00005195 0.2 AML other m 2023-09-24T19:44:34.32
IV.SEI.HHE. ML:0.7 0.000029500000000000002 0.66 AML other m 2023-09-24T19:44:36.79
IV.LMD.HHE. ML:0.0 0.00046152205000000003 0.1408 AML other m 2023-09-24T19:44:26.35
IV.LMD.HHN. ML:0.0 0.00039422155 0.1408 AML other m 2023-09-24T19:44:26.44
IV.SFI.EHE. ML:0.7 0.00003471841 1.6768 AML other m 2023-09-24T19:44:31.81
IV.SFI.EHN. ML:0.8 0.000040636055 2.0352 AML other m 2023-09-24T19:44:41.41
IV.VISG.HHE. ML:0.7 0.000028229339999999997 2.6752 AML other m 2023-09-24T19:44:33.70
IV.VISG.HHN. ML:0.4 0.0000126119225 0.0896 AML other m 2023-09-24T19:44:33.96
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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