Earthquake with magnitude of ML 1.8 on date 02-04-2024 and time 17:09:27 (Italy) in region 5 km E Loiano (BO)

A magnitude ML 1.8 earthquake occured in region: 5 km E Loiano (BO), on

  • 02-04-2024 15:09:27 (UTC)
  • 02-04-2024 17:09:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2780, 11.3810 at 24 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 5 4294 4294
Monterenzio BO 6 6035 10329
Monghidoro BO 8 3749 14078
Monzuno BO 9 6328 20406
Castel del Rio BO 12 1246 21652
Pianoro BO 12 17460 39112
San Benedetto Val di Sambro BO 14 4315 43427
Fontanelice BO 14 1943 45370
Marzabotto BO 16 6779 52149
Borgo Tossignano BO 17 3288 55437
Sasso Marconi BO 17 14735 70172
Firenzuola FI 18 4726 74898
Grizzana Morandi BO 18 3916 78814
Casalfiumanese BO 19 3438 82252

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km S of Bologna (386663 inhabitants)
28 Km W of Imola (69797 inhabitants)
40 Km W of Faenza (58541 inhabitants)
50 Km NE of Prato (191150 inhabitants)
53 Km W of Forlì (117913 inhabitants)
53 Km NE of Pistoia (90315 inhabitants)
55 Km SE of Modena (184973 inhabitants)
57 Km N of Firenze (382808 inhabitants)
60 Km N of Scandicci (50609 inhabitants)
65 Km SW of Ferrara (133155 inhabitants)
67 Km W of Ravenna (159116 inhabitants)
69 Km SE of Carpi (70699 inhabitants)
71 Km W of Cesena (96758 inhabitants)
76 Km SE of Reggio nell'Emilia (171345 inhabitants)
85 Km NE of Lucca (89046 inhabitants)
94 Km SW of Rovigo (51867 inhabitants)
98 Km W of Rimini (147750 inhabitants)
99 Km NW of Arezzo (99543 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 1.8 2024-04-02
15:09:27
44.2782 11.3807 24 2024-04-02
15:16:21
Sala Sismica INGV-Roma 126409371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-02 15:09:27 ± 0.52
Latitude 44.2782 ± 0.0153
Longitude 11.3807 ± 0.0364
Depth (km) 24 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126409371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2499
Semi-minor axis of confidence ellipse (meter) 1840
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 83
Circular confidence region, given by single value of horizontal uncertainty (meter) 2500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 218
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.04676
Epicentral distance of station farthest from the epicenter (degree) 0.42358
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 126409371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-02 15:16:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RINC.EHZ. 2024-04-02T15:09:44.12 0.6 undecidable manual S 157 47.0196 109 0.64 41
IV.VMGN.HHZ. 2024-04-02T15:09:41.83 0.6 undecidable manual S 161 37.9287 115 0.62 42
IV.LMD.HHZ. 2024-04-02T15:09:40.11 0.6 undecidable manual S 130 34.2435 118 -0.22 47
IV.SEI.HHZ. 2024-04-02T15:09:38.20 0.3 undecidable manual S 184 24.8529 127 -0.03 75
IV.RINC.EHZ. 2024-04-02T15:09:36.96 0.3 undecidable manual P 157 47.0196 109 0.08 71
IV.MTRZ.HHZ. 2024-04-02T15:09:36.09 0.6 undecidable manual S 42 5.1948 166 0.87 41
IV.VMGN.HHZ. 2024-04-02T15:09:35.53 0.1 undecidable manual P 161 37.9287 115 -0.05 96
IV.VISG.HHZ. 2024-04-02T15:09:34.89 0.3 undecidable manual S 157 10.7781 152 -0.87 60
IV.LMD.HHZ. 2024-04-02T15:09:34.77 0.1 undecidable manual P 130 34.2435 118 -0.3 92
IV.SEI.HHZ. 2024-04-02T15:09:33.88 0.1 negative manual P 184 24.8529 127 0.03 100
IV.VISG.HHZ. 2024-04-02T15:09:32.04 0.1 undecidable manual P 157 10.7781 152 -0.39 94
IV.MTRZ.HHZ. 2024-04-02T15:09:32.49 0.1 positive manual P 42 5.1948 166 0.37 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VISG.HHE. ML:1.6 0.00023799999999999998 1.42 AML other m 2024-04-02T15:09:34.98
IV.VISG.HHN. ML:1.6 0.00027150000000000004 0.1 AML other m 2024-04-02T15:09:35.52
IV.MTRZ.HNE. ML:2.3 0.001375 0.6 AML other m 2024-04-02T15:09:36.90
IV.MTRZ.HHE. ML:2.3 0.0014550000000000001 0.6 AML other m 2024-04-02T15:09:36.90
IV.MTRZ.HHN. ML:2.0 0.0007965 1.22 AML other m 2024-04-02T15:09:37.31
IV.MTRZ.HNN. ML:2.1 0.0008514999999999999 1.2 AML other m 2024-04-02T15:09:37.32
IV.SEI.HHE. ML:1.6 0.00017649999999999998 0.34 AML other m 2024-04-02T15:09:38.31
IV.SEI.HHN. ML:1.8 0.00026700000000000004 0.56 AML other m 2024-04-02T15:09:38.72
IV.VMGN.HHE. ML:1.0 0.00003655 1.5 AML other m 2024-04-02T15:09:42.91
IV.VMGN.HHN. ML:1.2 0.00004965 0.38 AML other m 2024-04-02T15:09:43.08
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