Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 18-02-2024 and time 10:13:12 (Italy) in region 3 km E Portico e San Benedetto (FC)

A magnitude ML 1.2 earthquake occured in region: 3 km E Portico e San Benedetto (FC), on

  • 18-02-2024 09:13:12 (UTC)
  • 18-02-2024 10:13:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0370, 11.8100 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.

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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
Portico e San Benedetto FC 3 756 756
Rocca San Casciano FC 4 1910 2666
Premilcuore FC 7 799 3465
Tredozio FC 7 1212 4677
Galeata FC 9 2516 7193
Civitella di Romagna FC 11 3786 10979
Dovadola FC 11 1653 12632
Santa Sofia FC 13 4136 16768
Modigliana FC 14 4560 21328
Predappio FC 16 6346 27674
Marradi FI 16 3139 30813
Castrocaro Terme e Terra del Sole FC 19 6426 37239
San Godenzo FI 19 1167 38406

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km SW of Forlì (117913 inhabitants)
28 Km S of Faenza (58541 inhabitants)
36 Km S of Imola (69797 inhabitants)
36 Km W of Cesena (96758 inhabitants)
53 Km SW of Ravenna (159116 inhabitants)
53 Km NE of Firenze (382808 inhabitants)
59 Km NE of Scandicci (50609 inhabitants)
60 Km E of Prato (191150 inhabitants)
61 Km W of Rimini (147750 inhabitants)
63 Km SE of Bologna (386663 inhabitants)
64 Km N of Arezzo (99543 inhabitants)
72 Km E of Pistoia (90315 inhabitants)
89 Km NE of Siena (53903 inhabitants)
90 Km W of Pesaro (94582 inhabitants)
90 Km S of Ferrara (133155 inhabitants)
98 Km SE of Modena (184973 inhabitants)
99 Km W of Fano (60888 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 1.2 2024-02-18
09:13:12		 44.0367 11.81 27 2024-02-18
09:24:00		 Sala Sismica INGV-Roma 125352061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-18 09:13:12 ± 0.13
Latitude 44.0367 ± 0.0063
Longitude 11.8100 ± 0.0088
Depth (km) 27 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 125352061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 708
Semi-minor axis of confidence ellipse (meter) 460
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 241
Circular confidence region, given by single value of horizontal uncertainty (meter) 710.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.71586
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 125352061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-18 09:24:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFI.HHZ. 2024-02-18T09:13:26.01 0.3 undecidable manual P 171 79.4649 103 -0.35 63
IV.CSNT.HHZ. 2024-02-18T09:13:26.48 0.6 undecidable manual P 214 75.0693 104 0.77 36
IV.RUFI.EHZ. 2024-02-18T09:13:24.89 0.3 undecidable manual S 228 32.5452 124 -0.03 73
IV.VMGN.HHZ. 2024-02-18T09:13:23.16 0.3 undecidable manual S 248 23.9538 133 0.05 73
IV.RINC.EHZ. 2024-02-18T09:13:23.16 0.3 undecidable manual S 224 23.2545 134 0.19 71
IV.PARC.HHZ. 2024-02-18T09:13:22.98 0.3 undecidable manual P 141 55.0005 110 0.24 67
IT.MOG.HNE. 2024-02-18T09:13:22.02 0.1 undecidable manual S 347 15.2736 147 0.41 94
IT.MRR.HGN. 2024-02-18T09:13:21.52 0.3 undecidable manual S 281 16.7721 144 -0.32 70
IV.SFI.EHZ. 2024-02-18T09:13:21.66 0.3 undecidable manual S 169 14.874 148 0.09 74
IV.CRE.HHZ. 2024-02-18T09:13:21.73 0.3 undecidable manual P 166 47.7189 113 0.04 70
IV.SEI.HHZ. 2024-02-18T09:13:20.26 0.3 undecidable manual P 273 36.0417 121 0.17 70
IV.LMD.HHZ. 2024-02-18T09:13:20.78 0.3 undecidable manual S 299 9.3795 159 -0.11 74
IV.VISG.HHZ. 2024-02-18T09:13:20.03 0.1 undecidable manual P 300 34.3434 122 0.17 94
IV.BOSL.HHE. 2024-02-18T09:13:19.99 0.6 undecidable manual P 252 36.741 120 -0.18 47
IV.RUFI.EHZ. 2024-02-18T09:13:19.48 0.3 undecidable manual P 228 32.5452 124 -0.15 71
IT.MCS.HGN. 2024-02-18T09:13:18.55 0.3 undecidable manual P 101 24.1536 133 -0.06 73
IV.RINC.EHZ. 2024-02-18T09:13:18.40 0.3 undecidable manual P 224 23.2545 134 -0.11 73
IV.VMGN.HHZ. 2024-02-18T09:13:18.49 0.3 undecidable manual P 248 23.9538 133 -0.1 73
IV.SFI.EHZ. 2024-02-18T09:13:17.67 0.1 undecidable manual P 169 14.874 148 -0.03 100
IT.MRR.HGN. 2024-02-18T09:13:17.72 0.3 undecidable manual P 281 16.7721 144 -0.14 73
IV.LMD.HHZ. 2024-02-18T09:13:17.07 0.1 undecidable manual P 299 9.3795 159 -0.24 96
IT.MOG.HNE. 2024-02-18T09:13:17.68 0.1 undecidable manual P 347 15.2736 147 -0.05 98
IV.MTRZ.HHZ. 2024-02-18T09:13:16.85 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LMD.HHE. ML:1.4 0.00013341375 0.2048 AML other m 2024-02-18T09:13:21.45
IV.LMD.HHN. ML:1.5 0.00018199775000000002 0.2048 AML other m 2024-02-18T09:13:21.70
IV.RINC.EHE. ML:1.4 0.00009871383999999999 0.416 AML other m 2024-02-18T09:13:23.58
IV.VMGN.HHE. ML:0.9 0.00003655 0.42 AML other m 2024-02-18T09:13:23.45
IV.RINC.EHN. ML:1.4 0.0001036 0.56 AML other m 2024-02-18T09:13:23.47
IV.VMGN.HHN. ML:0.9 0.000036898705 0.32 AML other m 2024-02-18T09:13:25.34
IV.CRE.HHN. ML:1.2 0.00004185 0.46 AML other m 2024-02-18T09:13:29.35
IV.SEI.HHE. ML:1.5 0.00008855 0.3 AML other m 2024-02-18T09:13:29.36
IV.SEI.HHN. ML:1.6 0.00013450000000000002 0.4 AML other m 2024-02-18T09:13:29.46
IV.CRE.HHE. ML:1.2 0.000039800000000000005 0.3 AML other m 2024-02-18T09:13:29.77
IV.SFI.EHE. ML:1.2 0.00008725954499999999 0.1792 AML other m 2024-02-18T09:13:22.42
IV.SFI.EHN. ML:1.1 0.000071724225 0.1984 AML other m 2024-02-18T09:13:21.90
IV.RUFI.EHE. ML:0.6 0.000016137445 0.1984 AML other m 2024-02-18T09:13:25.56
IV.RUFI.EHN. ML:1.2 0.00004821858 0.3264 AML other m 2024-02-18T09:13:25.36
IV.PARC.HHE. ML:0.7 0.000008776743999999999 0.704 AML other m 2024-02-18T09:13:36.23
IV.PARC.HHN. ML:0.7 0.000009854438 0.6976 AML other m 2024-02-18T09:13:40.74
IV.CAFI.HHE. ML:0.9 0.000012251231000000002 0.4416 AML other m 2024-02-18T09:13:38.58
IV.CAFI.HHN. ML:0.9 0.000009490367 0.4608 AML other m 2024-02-18T09:13:38.70
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