Earthquake with magnitude of Md 1.5 on date 02-04-2024 and time 03:42:29 (Italy) in region 6 km S Castel del Rio (BO)

A magnitude Md 1.5 earthquake occured in region: 6 km S Castel del Rio (BO), on

  • 02-04-2024 01:42:29 (UTC)
  • 02-04-2024 03:42:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1610, 11.5110 at 5 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
Castel del Rio BO 6 1246 1246
Palazzuolo sul Senio FI 6 1154 2400
Casola Valsenio RA 11 2617 5017
Firenzuola FI 12 4726 9743
Fontanelice BO 12 1943 11686
Marradi FI 13 3139 14825
Borgo Tossignano BO 14 3288 18113
Monghidoro BO 17 3749 21862
Casalfiumanese BO 17 3438 25300
Loiano BO 19 4294 29594

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km SW of Imola (69797 inhabitants)
33 Km W of Faenza (58541 inhabitants)
40 Km SE of Bologna (386663 inhabitants)
43 Km W of Forlì (117913 inhabitants)
45 Km NE of Prato (191150 inhabitants)
48 Km NE of Firenze (382808 inhabitants)
52 Km NE of Scandicci (50609 inhabitants)
54 Km E of Pistoia (90315 inhabitants)
58 Km W of Cesena (96758 inhabitants)
62 Km W of Ravenna (159116 inhabitants)
71 Km SE of Modena (184973 inhabitants)
76 Km S of Ferrara (133155 inhabitants)
83 Km NW of Arezzo (99543 inhabitants)
85 Km W of Rimini (147750 inhabitants)
85 Km SE of Carpi (70699 inhabitants)
88 Km E of Lucca (89046 inhabitants)
92 Km SE of Reggio nell'Emilia (171345 inhabitants)
95 Km N of Siena (53903 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 1.5 2024-04-02
01:42:29
44.1613 11.5113 5 2024-04-02
01:59:50
Sala Sismica INGV-Roma 126389721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-02 01:42:29 ± 0.15
Latitude 44.1613 ± 0.0045
Longitude 11.5113 ± 0.0088
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126389721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 638
Semi-minor axis of confidence ellipse (meter) 360
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 59
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 143
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 9
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) 0.42718
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 6
Magnitude information

Md:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 4
Type of magnitude Md
Reference to an origin 126389721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-02 01:59:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IX.SCL3.EHZ.02 2024-04-02T01:43:27.56 3.0 undecidable manual Pn -0.01 0
IV.SNTG.HHZ. 2024-04-02T01:42:46.66 3.0 negative manual Pn 1.57 0
IV.FRON.EHZ. 2024-04-02T01:42:42.38 3.0 undecidable manual Pn 1.34 0
IV.ZCCA.HHN. 2024-04-02T01:42:38.89 1.0 undecidable manual P 297 47.4192 50 0.15 23
IV.VMGN.HHZ. 2024-04-02T01:42:37.66 0.1 undecidable manual S 176 23.0547 103 0.23 93
IV.SEI.HHZ. 2024-04-02T01:42:35.49 0.1 undecidable manual S 226 16.9719 107 0.08 97
IV.MTRZ.HNN. 2024-04-02T01:42:33.34 0.6 undecidable manual P 338 18.1707 106 0.31 46
IV.VMGN.HHZ. 2024-04-02T01:42:33.74 0.3 undecidable manual P 176 23.0547 103 -0.23 70
IV.SEI.HHZ. 2024-04-02T01:42:32.58 0.1 undecidable manual P 226 16.9719 107 -0.23 94
IV.LMD.HHZ. 2024-04-02T01:42:32.98 0.3 undecidable manual P 121 18.1707 106 -0.05 73
IV.VISG.HHZ. 2024-04-02T01:42:32.22 0.1 undecidable manual S 297 6.8931 127 0 100
IV.VISG.HHZ. 2024-04-02T01:42:30.91 0.1 positive manual P 297 6.8931 127 -0.05 99
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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