Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 28-02-2024 and time 11:26:54 (UTC) in region 3 km SW Monterenzio (BO)

A magnitude ML 1.6 earthquake occured in region: 3 km SW Monterenzio (BO), on

  • 28-02-2024 11:26:54 (UTC)
  • 28-02-2024 12:26:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.3040, 11.3960 at 23 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
Monterenzio BO 3 6035 6035
Loiano BO 7 4294 10329
Pianoro BO 10 17460 27789
Monzuno BO 10 6328 34117
Monghidoro BO 11 3749 37866
Castel del Rio BO 13 1246 39112
Fontanelice BO 14 1943 41055
Sasso Marconi BO 16 14735 55790
Marzabotto BO 16 6779 62569
Borgo Tossignano BO 16 3288 65857
San Benedetto Val di Sambro BO 16 4315 70172
Ozzano dell'Emilia BO 17 13596 83768
Casalfiumanese BO 18 3438 87206
San Lazzaro di Savena BO 19 32065 119271
Castel San Pietro Terme BO 19 20811 140082
Dozza BO 20 6652 146734

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km S of Bologna (386663 inhabitants)
26 Km W of Imola (69797 inhabitants)
39 Km W of Faenza (58541 inhabitants)
52 Km W of Forlì (117913 inhabitants)
53 Km NE of Prato (191150 inhabitants)
53 Km SE of Modena (184973 inhabitants)
56 Km NE of Pistoia (90315 inhabitants)
60 Km N of Firenze (382808 inhabitants)
62 Km SW of Ferrara (133155 inhabitants)
63 Km N of Scandicci (50609 inhabitants)
65 Km W of Ravenna (159116 inhabitants)
67 Km SE of Carpi (70699 inhabitants)
70 Km W of Cesena (96758 inhabitants)
75 Km SE of Reggio nell'Emilia (171345 inhabitants)
88 Km NE of Lucca (89046 inhabitants)
91 Km SW of Rovigo (51867 inhabitants)
97 Km W of Rimini (147750 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 2024-02-28
11:26:54		 44.3037 11.396 23 2024-02-28
11:33:18		 Sala Sismica INGV-Roma 125590751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-28 11:26:54 ± 0.38
Latitude 44.3037 ± 0.0171
Longitude 11.3960 ± 0.0314
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 125590751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2631
Semi-minor axis of confidence ellipse (meter) 930
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 298
Circular confidence region, given by single value of horizontal uncertainty (meter) 2630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 240
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.02248
Epicentral distance of station farthest from the epicenter (degree) 0.51351
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 125590751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-28 11:33:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SFI.HNZ. 2024-02-28T11:27:13.15 0.3 undecidable manual S 141 56.9985 105 0.63 58
IV.BOSL.HHE. 2024-02-28T11:27:09.35 0.6 undecidable manual S 182 41.3253 111 0.8 38
IV.LMD.HHZ. 2024-02-28T11:27:07.21 0.3 undecidable manual S 135 35.2425 116 0.16 68
IT.MOG.HNN. 2024-02-28T11:27:06.43 0.3 undecidable manual S 117 32.9448 118 -0.08 71
IV.SFI.HNZ. 2024-02-28T11:27:05.08 0.1 undecidable manual P 141 56.9985 105 0.2 87
IV.SEI.HHZ. 2024-02-28T11:27:05.38 0.3 undecidable manual S 186 27.8499 123 0.06 72
IV.BOSL.HHE. 2024-02-28T11:27:02.96 0.6 undecidable manual P 182 41.3253 111 0.37 43
IV.MTRZ.HHZ. 2024-02-28T11:27:02.25 0.3 undecidable manual S 66 2.4975 173 0.78 61
IT.MOG.HNN. 2024-02-28T11:27:01.11 0.3 undecidable manual P 117 32.9448 118 -0.3 68
IV.VISG.HHZ. 2024-02-28T11:27:01.99 0.3 undecidable manual S 167 13.0758 146 -0.48 66
IV.LMD.HHZ. 2024-02-28T11:27:01.27 0.1 undecidable manual P 135 35.2425 116 -0.45 87
IV.SEI.HHZ. 2024-02-28T11:27:00.51 0.1 undecidable manual P 186 27.8499 123 -0.21 92
IV.MTRZ.HHZ. 2024-02-28T11:26:58.47 0.1 undecidable manual P 66 2.4975 173 -0.03 100
IV.VISG.HHZ. 2024-02-28T11:26:58.58 0.1 undecidable manual P 167 13.0758 146 -0.5 89
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VISG.HHE. ML:1.6 0.00021550000000000003 0.2 AML other m 2024-02-28T11:27:02.12
IV.VISG.HHN. ML:1.7 0.000288 0.14 AML other m 2024-02-28T11:27:02.22
IV.MTRZ.HHE. ML:1.5 0.00020800000000000001 0.7 AML other m 2024-02-28T11:27:02.93
IV.MTRZ.HHN. ML:1.5 0.0002215 0.3 AML other m 2024-02-28T11:27:04.92
IV.SEI.HHE. ML:1.4 0.00009784999999999999 1.24 AML other m 2024-02-28T11:27:06.16
IV.SEI.HHN. ML:1.8 0.00023349999999999998 0.18 AML other m 2024-02-28T11:27:06.24
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