Earthquake with magnitude of ML 1.7 on date 02-04-2024 and time 17:23:57 (Italy) in region 8 km E Loiano (BO)

A magnitude ML 1.7 earthquake occured in region: 8 km E Loiano (BO), on

  • 02-04-2024 15:23:57 (UTC)
  • 02-04-2024 17:23:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2430, 11.4110 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
Loiano BO 8 4294 4294
Monghidoro BO 8 3749 8043
Castel del Rio BO 8 1246 9289
Monterenzio BO 9 6035 15324
Monzuno BO 12 6328 21652
Fontanelice BO 12 1943 23595
Firenzuola FI 14 4726 28321
San Benedetto Val di Sambro BO 14 4315 32636
Borgo Tossignano BO 15 3288 35924
Pianoro BO 17 17460 53384
Casola Valsenio RA 17 2617 56001
Casalfiumanese BO 18 3438 59439
Palazzuolo sul Senio FI 18 1154 60593
Marzabotto BO 20 6779 67372

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km W of Imola (69797 inhabitants)
29 Km S of Bologna (386663 inhabitants)
38 Km W of Faenza (58541 inhabitants)
47 Km NE of Prato (191150 inhabitants)
50 Km W of Forlì (117913 inhabitants)
52 Km NE of Pistoia (90315 inhabitants)
54 Km N of Firenze (382808 inhabitants)
57 Km NE of Scandicci (50609 inhabitants)
59 Km SE of Modena (184973 inhabitants)
66 Km W of Ravenna (159116 inhabitants)
67 Km W of Cesena (96758 inhabitants)
68 Km S of Ferrara (133155 inhabitants)
73 Km SE of Carpi (70699 inhabitants)
80 Km SE of Reggio nell'Emilia (171345 inhabitants)
85 Km NE of Lucca (89046 inhabitants)
94 Km NW of Arezzo (99543 inhabitants)
94 Km W of Rimini (147750 inhabitants)
97 Km SW of Rovigo (51867 inhabitants)
100 Km NE of Pisa (89158 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 1.7 2024-04-02
15:23:57
44.2427 11.4113 22 2024-04-02
15:34:52
Sala Sismica INGV-Roma 126410191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-02 15:23:57 ± 0.6
Latitude 44.2427 ± 0.0180
Longitude 11.4113 ± 0.0389
Depth (km) 22 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126410191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2546
Semi-minor axis of confidence ellipse (meter) 2269
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 274
Circular confidence region, given by single value of horizontal uncertainty (meter) 2550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 177
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.26890
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 126410191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-02 15:34:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PAOL.HHZ. 2024-04-02T15:25:48.77 3.0 undecidable manual Sn -1.91 0
IV.MSRU.HHZ. 2024-04-02T15:25:41.81 3.0 undecidable manual Pn 5.28 0
IV.PETRA.HHZ. 2024-04-02T15:25:39.85 3.0 undecidable manual Pn 3.52 0
IV.IVPL.HHZ. 2024-04-02T15:25:35.90 3.0 undecidable manual Pn 3.2 0
IV.MCRV.HHZ. 2024-04-02T15:25:15.71 3.0 undecidable manual Pg 10.64 0
IV.RNI2.HHZ. 2024-04-02T15:25:02.52 3.0 positive manual Pg 13.88 0
IV.PTRJ.HHZ. 2024-04-02T15:24:54.02 3.0 undecidable manual Pn -0.68 0
IV.T0110.HHZ. 2024-04-02T15:24:49.71 3.0 negative manual Pg 9.13 0
IV.ARVD.HHZ. 2024-04-02T15:24:49.23 3.0 undecidable manual Sg 3.45 0
IV.CAMP.HHZ. 2024-04-02T15:24:39.47 3.0 negative manual Pg 4.51 0
GU.SATI.HHZ. 2024-04-02T15:24:35.99 3.0 negative manual Pn 0.69 0
IV.OFFI.HHZ. 2024-04-02T15:24:35.68 3.0 undecidable manual Pn 2.79 0
IV.CPGN.EHZ. 2024-04-02T15:24:27.98 3.0 undecidable manual S -4.63 0
IV.FRON.EHZ. 2024-04-02T15:24:21.13 3.0 undecidable manual P 0.75 0
IV.CPGN.EHZ. 2024-04-02T15:24:14.21 3.0 undecidable manual Pg -0.57 0
IV.LMD.HHZ. 2024-04-02T15:24:09.22 0.6 undecidable manual S 128 29.8479 119 0.42 45
IV.SEI.HHZ. 2024-04-02T15:24:07.40 0.3 undecidable manual S 191 21.2676 130 0.48 67
IV.MTRZ.HHZ. 2024-04-02T15:24:05.28 0.3 undecidable manual S 8 7.881 158 0.51 67
IV.VISG.HHZ. 2024-04-02T15:24:04.05 0.3 undecidable manual S 163 6.1938 162 -0.57 66
IV.SEI.HHZ. 2024-04-02T15:24:03.01 0.1 undecidable manual P 191 21.2676 130 0.05 97
IV.LMD.HHZ. 2024-04-02T15:24:03.94 0.3 undecidable manual P 128 29.8479 119 -0.1 71
IV.SBPO.HNZ. 2024-04-02T15:24:02.67 3.0 positive manual P -0.48 0
IV.VISG.HHZ. 2024-04-02T15:24:01.23 0.1 undecidable manual P 163 6.1938 162 -0.4 93
IV.MTRZ.HHZ. 2024-04-02T15:24:01.64 0.1 undecidable manual P 8 7.881 158 -0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VISG.HHE. ML:1.0 0.0000793 0.58 AML other m 2024-04-02T15:24:04.15
IV.VISG.HHN. ML:1.2 0.00010685 0.8 AML other m 2024-04-02T15:24:04.55
IV.MTRZ.HNE. ML:1.9 0.0005204999999999999 1.4 AML other m 2024-04-02T15:24:06.76
IV.MTRZ.HHE. ML:1.9 0.0005899999999999999 1.38 AML other m 2024-04-02T15:24:06.75
IV.MTRZ.HHN. ML:1.7 0.000352 0.7 AML other m 2024-04-02T15:24:06.47
IV.MTRZ.HNN. ML:1.8 0.0003885 0.8 AML other m 2024-04-02T15:24:06.47
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