Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 29-07-2022 and time 02:38:07 (Italy) in region 4 km SE Rocca San Casciano (FC)

A magnitude ML 0.9 earthquake occured in region: 4 km SE Rocca San Casciano (FC), on

  • 29-07-2022 00:38:07 (UTC)
  • 29-07-2022 02:38:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0320, 11.8700 at 9 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
Rocca San Casciano FC 4 1910 1910
Galeata FC 5 2516 4426
Civitella di Romagna FC 6 3786 8212
Portico e San Benedetto FC 7 756 8968
Premilcuore FC 10 799 9767
Santa Sofia FC 10 4136 13903
Dovadola FC 10 1653 15556
Tredozio FC 11 1212 16768
Predappio FC 12 6346 23114
Modigliana FC 15 4560 27674
Castrocaro Terme e Terra del Sole FC 17 6426 34100
Meldola FC 19 9970 44070

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km SW of Forlì (117913 inhabitants)
28 Km S of Faenza (58541 inhabitants)
32 Km W of Cesena (96758 inhabitants)
38 Km SE of Imola (69797 inhabitants)
50 Km SW of Ravenna (159116 inhabitants)
56 Km W of Rimini (147750 inhabitants)
57 Km NE of Firenze (382808 inhabitants)
63 Km N of Arezzo (99543 inhabitants)
63 Km E of Scandicci (50609 inhabitants)
64 Km E of Prato (191150 inhabitants)
67 Km SE of Bologna (386663 inhabitants)
77 Km E of Pistoia (90315 inhabitants)
85 Km W of Pesaro (94582 inhabitants)
90 Km NE of Siena (53903 inhabitants)
92 Km S of Ferrara (133155 inhabitants)
95 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 0.9 2022-07-29
00:38:07		 44.0318 11.8697 9 2022-07-29
01:39:37		 Sala Sismica INGV-Roma 107819351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-07-29 00:38:07 ± 0.17
Latitude 44.0318 ± 0.0063
Longitude 11.8697 ± 0.0175
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 107819351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1456
Semi-minor axis of confidence ellipse (meter) 386
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 74
Circular confidence region, given by single value of horizontal uncertainty (meter) 1460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 193
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41729
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 107819351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-07-29 01:39:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.POPM.HHZ. 2022-07-29T00:38:22.86 3.0 positive manual P -0.13 0
IV.CRE.HHZ. 2022-07-29T00:38:22.92 0.6 undecidable manual S 172 46.3203 50 0.28 47
IV.SEI.HHZ. 2022-07-29T00:38:21.43 0.6 undecidable manual S 274 40.8258 50 0.25 48
IV.RUFI.EHZ. 2022-07-29T00:38:19.89 0.6 undecidable manual S 233 35.9418 50 0.02 50
IV.CRE.HHZ. 2022-07-29T00:38:16.27 0.6 positive manual P 172 46.3203 50 0.06 49
IV.BRIS.HHZ. 2022-07-29T00:38:16.41 0.6 undecidable manual S 339 22.8549 112 0.41 47
IV.SEI.HHZ. 2022-07-29T00:38:15.19 0.6 undecidable manual P 274 40.8258 50 -0.18 48
IV.RUFI.EHZ. 2022-07-29T00:38:14.10 0.6 undecidable manual P 233 35.9418 50 -0.51 45
IV.SFI.EHZ. 2022-07-29T00:38:13.56 0.6 undecidable manual S 187 14.1747 123 0.24 50
IV.BRIS.HHZ. 2022-07-29T00:38:12.22 0.1 positive manual P 339 22.8549 112 -0.16 100
IV.SFI.EHZ. 2022-07-29T00:38:10.65 0.3 positive manual P 187 14.1747 123 -0.18 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.EHE. ML:1.2 0.00017400000000000003 0.14 AML other m 2022-07-29T00:38:13.63
IV.SFI.EHN. ML:1.2 0.0001585 0.34 AML other m 2022-07-29T00:38:13.64
IV.BRIS.HHE. ML:0.8 0.000041099999999999996 0.28 AML other m 2022-07-29T00:38:16.73
IV.BRIS.HHN. ML:0.9 0.00004775 0.46 AML other m 2022-07-29T00:38:16.75
IV.RUFI.EHE. ML:0.8 0.000024249999999999997 0.42 AML other m 2022-07-29T00:38:19.23
IV.RUFI.EHN. ML:1.0 0.000036185 0.3 AML other m 2022-07-29T00:38:20.08
IV.CRE.HHN. ML:0.7 0.00001565 0.56 AML other m 2022-07-29T00:38:23.75
IV.CRE.HHE. ML:0.7 0.0000168 1.42 AML other m 2022-07-29T00:38:23.13
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