Earthquake with magnitude of ML 1.6 on date 04-08-2024 and time 21:59:56 (UTC) in region 6 km E Forlì (FC)

A magnitude ML 1.6 earthquake occured in region: 6 km E Forlì (FC), on

  • 04-08-2024 21:59:56 (UTC)
  • 04-08-2024 23:59:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2480, 12.1050 at 22 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
Forlì FC 6 117913 117913
Forlimpopoli FC 7 13290 131203
Bertinoro FC 11 11059 142262
Meldola FC 14 9970 152232
Castrocaro Terme e Terra del Sole FC 15 6426 158658
Russi RA 15 12247 170905
Cesena FC 17 96758 267663
Faenza RA 18 58541 326204
Predappio FC 19 6346 332550
Cervia RA 20 28940 361490

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km E of Forlì (117913 inhabitants)
17 Km NW of Cesena (96758 inhabitants)
18 Km E of Faenza (58541 inhabitants)
20 Km SW of Ravenna (159116 inhabitants)
33 Km E of Imola (69797 inhabitants)
42 Km W of Rimini (147750 inhabitants)
67 Km E of Bologna (386663 inhabitants)
75 Km NW of Pesaro (94582 inhabitants)
76 Km SE of Ferrara (133155 inhabitants)
86 Km NW of Fano (60888 inhabitants)
86 Km NE of Firenze (382808 inhabitants)
89 Km N of Arezzo (99543 inhabitants)
90 Km E of Prato (191150 inhabitants)
92 Km NE of Scandicci (50609 inhabitants)
95 Km S of Rovigo (51867 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 2024-08-04
21:59:56
44.2475 12.105 22 2024-08-04
22:24:14
Sala Sismica INGV-Roma 130415481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-08-04 21:59:56 ± 0.18
Latitude 44.2475 ± 0.0108
Longitude 12.1050 ± 0.0126
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 130415481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1213
Semi-minor axis of confidence ellipse (meter) 558
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 217
Circular confidence region, given by single value of horizontal uncertainty (meter) 1210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.04047
Epicentral distance of station farthest from the epicenter (degree) 1.28243
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 130415481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-08-04 22:24:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ZOVE.EHZ. 2024-08-04T22:00:19.76 0.6 undecidable manual P 340 142.3464 54 0.17 39
IV.PESA.HHN. 2024-08-04T22:00:08.57 0.1 undecidable manual P 120 67.6767 101 0.37 88
IV.SEI.HHZ. 2024-08-04T22:00:07.66 0.6 negative manual P 250 63.1923 102 0.14 46
IV.RUFI.EHZ. 2024-08-04T22:00:07.65 1.0 positive manual P 226 65.6898 101 -0.25 23
IT.MOG.HNZ. 2024-08-04T22:00:07.91 0.6 undecidable manual S 252 28.2495 120 0.94 37
IV.PARC.HHZ. 2024-08-04T22:00:07.81 0.6 negative manual P 171 67.2771 101 -0.32 44
IT.MCS.HGZ. 2024-08-04T22:00:07.37 0.6 undecidable manual S 180 28.1496 120 0.41 46
IV.RINC.EHZ. 2024-08-04T22:00:06.26 0.1 undecidable manual P 225 56.3991 103 -0.23 92
IV.VISG.HHZ. 2024-08-04T22:00:06.26 1.0 undecidable manual P 263 53.7018 104 0.17 23
IV.CPGN.HNZ. 2024-08-04T22:00:06.13 0.1 undecidable manual P 161 52.4031 105 0.23 93
IV.VMGN.HHZ. 2024-08-04T22:00:06.33 0.6 negative manual P 235 55.9995 103 -0.1 47
IV.RSM2.HHZ. 2024-08-04T22:00:04.55 0.1 undecidable manual P 142 43.7229 108 -0.07 96
IV.IMOL.EHZ. 2024-08-04T22:00:03.07 1.0 undecidable manual P 293 31.3464 116 0.23 24
IV.BRSN.HNZ. 2024-08-04T22:00:03.11 0.6 undecidable manual S 334 4.4955 166 0.16 51
IT.MOG.HNZ. 2024-08-04T22:00:02.43 0.1 undecidable manual P 252 28.2495 120 0.01 100
IT.MCS.HGZ. 2024-08-04T22:00:01.96 0.3 negative manual P 180 28.1496 120 -0.45 69
IV.BRSN.HNZ. 2024-08-04T21:59:59.25 0.3 undecidable manual P 334 4.4955 166 -0.85 62
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VMGN.HHE. ML:1.2 0.00003655 0.6 AML other m 2024-08-04T22:00:16.88
IV.VISG.HHE. ML:1.5 0.0000693 0.3 AML other m 2024-08-04T22:00:16.76
IV.VMGN.HHN. ML:1.3 0.000038150000000000006 1.38 AML other m 2024-08-04T22:00:16.06
IV.VISG.HHN. ML:1.5 0.00006445000000000001 0.4 AML other m 2024-08-04T22:00:16.89
IV.SEI.HHE. ML:1.8 0.00011599999999999999 0.3 AML other m 2024-08-04T22:00:19.55
IV.PARC.HHN. ML:1.3 0.0000339 0.78 AML other m 2024-08-04T22:00:19.81
IV.PARC.HHE. ML:1.3 0.00003035 1.52 AML other m 2024-08-04T22:00:20.98
IV.SEI.HHN. ML:1.9 0.0001485 0.26 AML other m 2024-08-04T22:00:20.65
IV.PE3.EHE. ML:1.8 0.0001017 0.4 AML other m 2024-08-04T22:00:20.73
IV.PE3.EHN. ML:1.7 0.00008599999999999999 1.26 AML other m 2024-08-04T22:00:21.91
IV.NARO.HHE. ML:1.2 0.0000197 0.6 AML other m 2024-08-04T22:00:23.15
IV.NARO.HHN. ML:1.4 0.0000292 0.46 AML other m 2024-08-04T22:00:23.48
IV.PIEI.HHE. ML:1.6 0.0000521 0.28 AML other m 2024-08-04T22:00:24.22
IV.PIEI.HHN. ML:1.5 0.00003665 1.12 AML other m 2024-08-04T22:00:24.84
IV.MPAG.EHN. ML:1.7 0.000052900000000000005 0.4 AML other m 2024-08-04T22:00:27.00
IV.MPAG.EHE. ML:1.5 0.00003955 0.48 AML other m 2024-08-04T22:00:28.26
IV.SSFR.HHN. ML:1.9 0.00007694999999999999 0.24 AML other m 2024-08-04T22:00:32.21
IV.SSFR.HHE. ML:2.0 0.00008995 1.12 AML other m 2024-08-04T22:00:32.97
IV.CAFI.HHE. ML:1.3 0.00001975 0.98 AML other m 2024-08-04T22:00:32.29
IV.CAFI.HHN. ML:1.2 0.00001565 0.8 AML other m 2024-08-04T22:00:36.86
IV.FDMO.HHE. ML:1.5 0.000013700000000000001 0.62 AML other m 2024-08-04T22:00:47.84
IV.FDMO.HHN. ML:1.5 0.0000132 1.5 AML other m 2024-08-04T22:00:47.10
GU.CANO.HHE. ML:2.8 0.0000722 0.86 AML other m 2024-08-04T22:01:20.78
GU.CANO.HHN. ML:2.5 0.000033 0.6 AML other m 2024-08-04T22:01:22.27
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