Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 25-03-2020 and time 14:03:31 (Italy) in region 3 km NW Borgo Tossignano (BO)

A magnitude ML 2.4 earthquake occured in region: 3 km NW Borgo Tossignano (BO), on

  • 25-03-2020 13:03:31 (UTC)
  • 25-03-2020 14:03:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.3050, 11.5690 at 24 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Borgo Tossignano BO 3 3288 3288
Casalfiumanese BO 4 3438 6726
Fontanelice BO 5 1943 8669
Dozza BO 8 6652 15321
Casola Valsenio RA 10 2617 17938
Castel San Pietro Terme BO 11 20811 38749
Castel del Rio BO 11 1246 39995
Riolo Terme RA 13 5720 45715
Imola BO 13 69797 115512
Monterenzio BO 13 6035 121547
Castel Guelfo di Bologna BO 17 4455 126002
Ozzano dell'Emilia BO 17 13596 139598
Castel Bolognese RA 19 9554 149152
Brisighella RA 19 7639 156791
Loiano BO 20 4294 161085
Medicina BO 20 16739 177824

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km W of Imola (69797 inhabitants)
25 Km W of Faenza (58541 inhabitants)
28 Km SE of Bologna (386663 inhabitants)
39 Km W of Forlì (117913 inhabitants)
52 Km W of Ravenna (159116 inhabitants)
57 Km W of Cesena (96758 inhabitants)
59 Km S of Ferrara (133155 inhabitants)
60 Km NE of Prato (191150 inhabitants)
64 Km SE of Modena (184973 inhabitants)
65 Km NE of Firenze (382808 inhabitants)
66 Km NE of Pistoia (90315 inhabitants)
68 Km NE of Scandicci (50609 inhabitants)
76 Km SE of Carpi (70699 inhabitants)
84 Km W of Rimini (147750 inhabitants)
86 Km SE of Reggio nell'Emilia (171345 inhabitants)
87 Km S of Rovigo (51867 inhabitants)
97 Km N of Arezzo (99543 inhabitants)
99 Km NE of Lucca (89046 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
Bulletin
Rev1000 		ML 2.4 2020-03-25
13:03:31		 44.3048 11.5688 24 2020-07-18
21:08:38		 Bollettino Sismico Italiano INGV 79720111
Reviewed
Rev100 		ML 2.4 2020-03-25
13:03:31		 44.3182 11.5622 28 2020-03-25
13:21:10		 Sala Sismica INGV-Roma 77563781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-25 13:03:31 ± 0.23
Latitude 44.3048 ± 0.0072
Longitude 11.5688 ± 0.0126
Depth (km) 24 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 79720111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 970
Semi-minor axis of confidence ellipse (meter) 432
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 259
Circular confidence region, given by single value of horizontal uncertainty (meter) 970.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.05850
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 19
Type of magnitude ML
Reference to an origin 79720111
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-24 17:24:28

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 19
Type of magnitude ML
Reference to an origin 77563781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-25 13:21:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAGR.HHZ. 2020-03-25T13:05:29.79 3.0 undecidable manual Pg 21.870001 0
IV.MTMR.HNZ. 2020-03-25T13:05:17.72 3.0 undecidable manual Sn -2.7 0
IV.PTRJ.HNZ. 2020-03-25T13:05:10.86 3.0 undecidable manual Sg 4.36 0
IV.PAOL.HHZ. 2020-03-25T13:04:59.36 3.0 undecidable manual Sn -9.99 0
IV.LRP.EHZ. 2020-03-25T13:04:55.03 3.0 undecidable manual Sg 4.25 0
IV.JOPP.HHZ. 2020-03-25T13:04:53.67 3.0 negative manual Pn -8.35 0
IV.POFI.HHZ. 2020-03-25T13:04:51.25 3.0 undecidable manual Sg 0.61 0
IV.CET2.HHZ. 2020-03-25T13:04:41.91 3.0 undecidable manual Pn -9.89 0
IV.MTMR.EHZ. 2020-03-25T13:04:37.80 3.0 undecidable manual Pg 7.24 0
OX.FUSE.HHZ. 2020-03-25T13:04:34.31 3.0 undecidable manual Sn -0.58 0
IV.PAOL.HHZ. 2020-03-25T13:04:29.60 3.0 undecidable manual Pg 3.01 0
IV.MC2.EHZ. 2020-03-25T13:04:23.66 3.0 undecidable manual Sg 1.16 0
IV.LRP.EHZ. 2020-03-25T13:04:23.39 3.0 undecidable manual Pg 9.48 0
IV.LNSS.HHZ. 2020-03-25T13:04:22.62 3.0 undecidable manual Sn -3.61 0
IV.FDMO.HHZ. 2020-03-25T13:04:19.24 3.0 undecidable manual Sg 0.11 0
IV.CADC.HNZ. 2020-03-25T13:04:07.55 3.0 undecidable manual Sn -1.4 0
RF.GEPF.HHZ. 2020-03-25T13:04:06.68 3.0 negative manual Pn 2.57 0
IV.MILN.HNZ. 2020-03-25T13:04:01.03 3.0 undecidable manual Pn 4.73 0
IV.MURB.HHZ. 2020-03-25T13:04:00.17 3.0 undecidable manual Sn -8.21 0
IV.CRE.HHZ. 2020-03-25T13:03:54.96 3.0 undecidable manual Sg -0.98 0
IV.TEOL.HHZ. 2020-03-25T13:03:51.67 0.3 undecidable manual P 4 117.4935 97 0.29 58
IV.PII.HHZ. 2020-03-25T13:03:51.17 3.0 undecidable manual Sn -2.35 0
GU.GORR.HHZ. 2020-03-25T13:03:50.52 3.0 undecidable manual Pn 0.15 0
IV.RUFI.EHZ. 2020-03-25T13:03:49.21 0.3 undecidable manual S 185 52.0035 108 0.58 62
IV.ORZI.HNZ. 2020-03-25T13:03:49.15 3.0 undecidable manual Pn -1.81 0
IV.SFI.EHZ. 2020-03-25T13:03:48.56 0.3 undecidable manual S 153 49.617 109 0.54 63
IV.FNVD.HHN. 2020-03-25T13:03:45.60 0.3 undecidable manual S 247 38.5281 115 0.31 68
IV.ATFO.HHZ. 2020-03-25T13:03:44.85 3.0 negative manual P -4.6 0
IV.LMD.HHZ. 2020-03-25T13:03:43.06 0.3 undecidable manual S 156 27.5502 125 0.32 70
IV.SEI.HHZ. 2020-03-25T13:03:43.89 0.3 undecidable manual S 211 32.4453 120 0.05 73
IV.RUFI.EHZ. 2020-03-25T13:03:41.39 0.3 undecidable manual P 185 52.0035 108 -0.09 70
IV.SFI.EHZ. 2020-03-25T13:03:41.09 0.3 undecidable manual P 153 49.617 109 -0.04 71
IV.ZCCA.HNN. 2020-03-25T13:03:41.74 0.3 undecidable manual P 276 47.3193 110 0.94 53
IV.VISG.HHZ. 2020-03-25T13:03:40.30 0.3 undecidable manual S 220 16.6722 141 -0.32 70
IV.IMOL.EHZ. 2020-03-25T13:03:40.84 0.6 undecidable manual S 66 15.0738 144 0.49 45
IV.RINC.HHZ. 2020-03-25T13:03:40.70 0.1 undecidable manual P 176 46.5201 111 0.02 95
IV.MTRZ.HHZ. 2020-03-25T13:03:40.12 0.3 undecidable manual S 274 11.4774 152 0.28 72
IV.RONT.HHZ. 2020-03-25T13:03:39.06 0.1 undecidable manual P 197 36.1416 117 -0.17 94
IV.FNVD.HHN. 2020-03-25T13:03:39.55 0.1 undecidable manual P 247 38.5281 115 0 97
IV.SEI.HHZ. 2020-03-25T13:03:38.54 0.3 undecidable manual P 211 32.4453 120 -0.18 71
IV.LMD.HHZ. 2020-03-25T13:03:37.49 0.1 undecidable manual P 156 27.5502 125 -0.59 86
IV.IMOL.EHZ. 2020-03-25T13:03:36.73 0.1 undecidable manual P 66 15.0738 144 0.03 100
IV.MTRZ.HHZ. 2020-03-25T13:03:36.21 0.1 undecidable manual P 274 11.4774 152 -0.2 98
IV.BRIS.HHZ. 2020-03-25T13:03:36.66 0.1 undecidable manual P 119 18.0708 139 -0.33 94
IV.VISG.HHZ. 2020-03-25T13:03:35.92 0.1 undecidable manual P 220 16.6722 141 -0.94 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VISG.HHN. ML:2.5 0.0015699999999999998 1.28 AML other m 2020-03-25T13:03:41.87
IV.VISG.HHE. ML:2.4 0.001295 1.02 AML other m 2020-03-25T13:03:41.91
IV.MTRZ.HNE. ML:2.5 0.0017000000000000001 0.2 AML other m 2020-03-25T13:03:41.55
IV.MTRZ.HHE. ML:2.5 0.0018199999999999998 0.2 AML other m 2020-03-25T13:03:41.55
IV.MTRZ.HNN. ML:2.8 0.003455 0.92 AML other m 2020-03-25T13:03:41.81
IV.MTRZ.HHN. ML:2.8 0.00356 0.92 AML other m 2020-03-25T13:03:41.81
IV.IMOL.HNE. ML:2.5 0.001935 0.42 AML other m 2020-03-25T13:03:42.90
IV.IMOL.HNN. ML:2.6 0.00237 0.8 AML other m 2020-03-25T13:03:43.54
IV.LMD.HHE. ML:2.4 0.0010685 0.42 AML other m 2020-03-25T13:03:43.47
IV.BRIS.HHN. ML:2.3 0.0009615 0.32 AML other m 2020-03-25T13:03:43.18
IV.LMD.HHN. ML:2.5 0.001315 0.24 AML other m 2020-03-25T13:03:43.45
IV.BRIS.HHE. ML:2.2 0.000762 1.5 AML other m 2020-03-25T13:03:43.92
IV.SEI.HHN. ML:3.2 0.005 0.34 AML other m 2020-03-25T13:03:44.42
IV.SFI.EHE. ML:2.0 0.000248 0.72 AML other m 2020-03-25T13:03:49.51
IV.SFI.HNE. ML:2.1 0.00029200000000000005 0.72 AML other m 2020-03-25T13:03:49.51
IV.SFI.EHN. ML:2.3 0.00044050000000000003 0.46 AML other m 2020-03-25T13:03:49.62
IV.SFI.HNN. ML:2.3 0.00046100000000000004 0.82 AML other m 2020-03-25T13:03:51.18
IV.CRE.HHN. ML:2.0 0.000131 1 AML other m 2020-03-25T13:04:01.82
IV.CRE.HHE. ML:1.9 0.00010885 0.92 AML other m 2020-03-25T13:04:02.65
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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