Earthquake with magnitude of Md 1.3 on date 19-09-2023 and time 09:32:20 (Italy) in region 3 km W Tredozio (FC)

A magnitude Md 1.3 earthquake occured in region: 3 km W Tredozio (FC), on

  • 19-09-2023 07:32:20 (UTC)
  • 19-09-2023 09:32:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0730, 11.7150 at 6 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 3 1212 1212
Portico e San Benedetto FC 7 756 1968
Marradi FI 8 3139 5107
Rocca San Casciano FC 10 1910 7017
Modigliana FC 11 4560 11577
Premilcuore FC 12 799 12376
Palazzuolo sul Senio FI 14 1154 13530
Dovadola FC 15 1653 15183
Brisighella RA 17 7639 22822
San Godenzo FI 18 1167 23989
Galeata FC 18 2516 26505
Casola Valsenio RA 18 2617 29122
Civitella di Romagna FC 19 3786 32908

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km SW of Faenza (58541 inhabitants)
31 Km SW of Forlì (117913 inhabitants)
31 Km S of Imola (69797 inhabitants)
43 Km W of Cesena (96758 inhabitants)
50 Km NE of Firenze (382808 inhabitants)
54 Km E of Prato (191150 inhabitants)
55 Km SW of Ravenna (159116 inhabitants)
55 Km NE of Scandicci (50609 inhabitants)
56 Km SE of Bologna (386663 inhabitants)
66 Km E of Pistoia (90315 inhabitants)
68 Km W of Rimini (147750 inhabitants)
69 Km N of Arezzo (99543 inhabitants)
85 Km S of Ferrara (133155 inhabitants)
89 Km NE of Siena (53903 inhabitants)
89 Km SE of Modena (184973 inhabitants)
98 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
Md 1.3 2023-09-19
07:32:20
44.0727 11.7148 6 2023-09-19
07:47:20
Sala Sismica INGV-Roma 121225221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-19 07:32:20 ± 0.14
Latitude 44.0727 ± 0.0036
Longitude 11.7148 ± 0.0063
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121225221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 426
Semi-minor axis of confidence ellipse (meter) 309
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 234
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) 199
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.28239
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 9
Magnitude information

Md:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 7
Type of magnitude Md
Reference to an origin 121225221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-19 07:47:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BOSL.HHZ. 2023-09-19T07:32:31.25 0.6 undecidable manual S 240 31.3464 101 -0.1 48
IV.RUFI.EHZ. 2023-09-19T07:32:30.79 0.3 undecidable manual S 212 30.747 102 -0.35 69
IV.SEI.HHZ. 2023-09-19T07:32:30.28 0.3 undecidable manual S 266 28.4493 103 -0.08 73
IV.VISG.HHZ. 2023-09-19T07:32:29.73 0.3 undecidable manual S 300 25.752 104 0.28 70
IV.RINC.EHN. 2023-09-19T07:32:28.50 0.1 undecidable manual S 203 22.3554 106 0.19 96
IV.SFI.EHE. 2023-09-19T07:32:28.16 0.3 undecidable manual S 150 21.3675 107 0.17 73
IV.MURB.HHE. 2023-09-19T07:32:27.58 3.0 undecidable manual P 0.49 0
IV.VMGN.HHE. 2023-09-19T07:32:27.60 0.1 undecidable manual S 228 19.5693 108 0.22 96
IV.ATCC.EHN. 2023-09-19T07:32:26.03 3.0 positive manual Pn -1.83 0
IV.BOSL.HHZ. 2023-09-19T07:32:26.45 0.3 undecidable manual P 240 31.3464 101 -0.2 71
IV.RUFI.EHZ. 2023-09-19T07:32:26.19 0.1 undecidable manual P 212 30.747 102 -0.34 92
IV.SEI.HHZ. 2023-09-19T07:32:25.86 0.1 undecidable manual P 266 28.4493 103 -0.22 95
IV.VISG.HHZ. 2023-09-19T07:32:25.60 0.1 undecidable manual P 300 25.752 104 0.04 99
IV.MMUR.HNZ. 2023-09-19T07:32:25.67 3.0 undecidable manual Pn 1.7 0
IV.VMGN.HHE. 2023-09-19T07:32:24.49 0.1 undecidable manual P 228 19.5693 108 0.13 98
IV.RINC.EHN. 2023-09-19T07:32:24.90 0.1 undecidable manual P 203 22.3554 106 0 100
IT.MRR.HGE. 2023-09-19T07:32:24.18 0.1 undecidable manual S 264 8.9799 126 0.14 100
IV.SFI.EHE. 2023-09-19T07:32:24.84 0.3 undecidable manual P 150 21.3675 107 0.13 73
IV.FOSV.EHZ. 2023-09-19T07:32:23.61 3.0 undecidable manual Pn -2.56 0
IT.MRR.HGE. 2023-09-19T07:32:22.60 0.6 undecidable manual P 264 8.9799 126 0.17 50
IV.LMD.HHZ. 2023-09-19T07:32:22.26 0.1 undecidable manual S 311 0.7992 173 -0.21 100
IV.LMD.HHZ. 2023-09-19T07:32:21.53 0.6 undecidable manual P 311 0.7992 173 0.01 52
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