Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 1.7 on date 02-07-2024 and time 21:55:54 (Italy) in region 5 km S Forlì (FC)

A magnitude Md 1.7 earthquake occured in region: 5 km S Forlì (FC), on

  • 02-07-2024 19:55:54 (UTC)
  • 02-07-2024 21:55:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1770, 12.0450 at 26 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
Forlì FC 5 117913 117913
Meldola FC 6 9970 127883
Forlimpopoli FC 7 13290 141173
Castrocaro Terme e Terra del Sole FC 8 6426 147599
Bertinoro FC 8 11059 158658
Predappio FC 10 6346 165004
Dovadola FC 14 1653 166657
Cesena FC 16 96758 263415
Faenza RA 18 58541 321956

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km S of Forlì (117913 inhabitants)
16 Km W of Cesena (96758 inhabitants)
18 Km SE of Faenza (58541 inhabitants)
30 Km SW of Ravenna (159116 inhabitants)
33 Km SE of Imola (69797 inhabitants)
44 Km W of Rimini (147750 inhabitants)
66 Km SE of Bologna (386663 inhabitants)
76 Km W of Pesaro (94582 inhabitants)
78 Km NE of Firenze (382808 inhabitants)
80 Km N of Arezzo (99543 inhabitants)
81 Km SE of Ferrara (133155 inhabitants)
83 Km E of Prato (191150 inhabitants)
83 Km NE of Scandicci (50609 inhabitants)
86 Km W of Fano (60888 inhabitants)
94 Km E of Pistoia (90315 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 1.7 2024-07-02
19:55:54		 44.1772 12.0448 26 2024-07-02
20:04:21		 Sala Sismica INGV-Roma 129430481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-07-02 19:55:54 ± 0.3
Latitude 44.1772 ± 0.0090
Longitude 12.0448 ± 0.0138
Depth (km) 26 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 129430481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 945
Semi-minor axis of confidence ellipse (meter) 692
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 318
Circular confidence region, given by single value of horizontal uncertainty (meter) 940.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 216
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.50722
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 8
Magnitude information

Md:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 5
Type of magnitude Md
Reference to an origin 129430481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-07-02 20:04:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SEI.HHN. 2024-07-02T19:56:12.75 0.6 undecidable manual S 256 56.2992 109 0.31 44
IV.MTRZ.HNE. 2024-07-02T19:56:11.16 0.6 undecidable manual S 287 51.5151 111 -0.08 47
IV.ARVD.HHZ. 2024-07-02T19:56:10.50 3.0 undecidable manual S -2.45 0
IV.RINC.EHZ. 2024-07-02T19:56:10.09 0.6 undecidable manual S 227 47.5191 113 -0.15 46
IV.VMGN.HHN. 2024-07-02T19:56:10.66 0.6 undecidable manual S 239 47.7189 113 0.37 45
OX.VARN.HHZ. 2024-07-02T19:56:10.29 3.0 positive manual Pn -0.17 0
IV.VISG.HHZ. 2024-07-02T19:56:10.35 0.6 undecidable manual S 272 48.618 112 -0.15 46
IV.SACS.HHZ. 2024-07-02T19:56:09.75 3.0 negative manual Pg -1.95 0
NI.PALA.HHZ. 2024-07-02T19:56:08.41 3.0 undecidable manual Pn -3.56 0
IV.SFI.EHZ. 2024-07-02T19:56:07.03 0.6 undecidable manual S 208 34.0437 122 -0.01 48
IV.IMOL.EHZ. 2024-07-02T19:56:05.89 0.3 undecidable manual S 310 31.4463 124 -0.56 66
IV.MTRZ.HNE. 2024-07-02T19:56:04.78 0.1 undecidable manual P 287 51.5151 111 0.72 77
IV.SEI.HHN. 2024-07-02T19:56:04.83 0.1 undecidable manual P 256 56.2992 109 0.07 93
IT.MCS.HGN. 2024-07-02T19:56:04.37 0.6 undecidable manual S 166 20.9679 137 0.05 50
IV.VISG.HHZ. 2024-07-02T19:56:03.39 0.6 positive manual P 272 48.618 112 -0.25 46
IV.RINC.EHZ. 2024-07-02T19:56:03.38 0.1 undecidable manual P 227 47.5191 113 -0.11 93
IV.VMGN.HHN. 2024-07-02T19:56:03.27 0.1 undecidable manual P 239 47.7189 113 -0.24 91
IV.PP3.EHZ. 2024-07-02T19:56:02.81 3.0 positive manual P 0.42 0
IV.IMOL.EHZ. 2024-07-02T19:56:01.62 0.6 negative manual P 310 31.4463 124 0.32 46
IV.SFI.EHZ. 2024-07-02T19:56:01.47 0.1 undecidable manual P 208 34.0437 122 -0.17 94
IT.MCS.HGN. 2024-07-02T19:56:00.09 0.1 undecidable manual P 166 20.9679 137 0.03 100
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