Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 09-05-2020 and time 10:28:02 (UTC) in region 3 km NW San Benedetto Val di Sambro (BO)

A magnitude ML 1.7 earthquake occured in region: 3 km NW San Benedetto Val di Sambro (BO), on

  • 09-05-2020 10:28:02 (UTC)
  • 09-05-2020 12:28:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2390, 11.2160 at 51 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
San Benedetto Val di Sambro BO 3 4315 4315
Grizzana Morandi BO 6 3916 8231
Monzuno BO 6 6328 14559
Monghidoro BO 8 3749 18308
Loiano BO 9 4294 22602
Vergato BO 10 7639 30241
Marzabotto BO 11 6779 37020
Castiglione dei Pepoli BO 12 5648 42668
Camugnano BO 13 1885 44553
Castel di Casio BO 17 3448 48001
Sasso Marconi BO 18 14735 62736
Castel d'Aiano BO 18 1906 64642
Monterenzio BO 18 6035 70677
Firenzuola FI 19 4726 75403
Pianoro BO 19 17460 92863

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km SW of Bologna (386663 inhabitants)
41 Km N of Prato (191150 inhabitants)
41 Km NE of Pistoia (90315 inhabitants)
42 Km W of Imola (69797 inhabitants)
51 Km SE of Modena (184973 inhabitants)
52 Km N of Firenze (382808 inhabitants)
53 Km N of Scandicci (50609 inhabitants)
53 Km W of Faenza (58541 inhabitants)
66 Km W of Forlì (117913 inhabitants)
66 Km SE of Carpi (70699 inhabitants)
69 Km SE of Reggio nell'Emilia (171345 inhabitants)
72 Km NE of Lucca (89046 inhabitants)
74 Km SW of Ferrara (133155 inhabitants)
81 Km W of Ravenna (159116 inhabitants)
83 Km W of Cesena (96758 inhabitants)
87 Km NE of Pisa (89158 inhabitants)
88 Km E of Viareggio (62467 inhabitants)
89 Km E of Massa (69479 inhabitants)
91 Km E of Carrara (63133 inhabitants)
94 Km SE of Parma (192836 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 1.7 2020-05-09
10:28:02		 44.2388 11.2163 51 2020-11-19
12:36:44		 Bollettino Sismico Italiano INGV 79097921
Reviewed
Rev100 		ML 1.6 2020-05-09
10:28:02		 44.2172 11.1787 55 2020-05-09
10:41:25		 Sala Sismica INGV-Roma 78978971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-09 10:28:02 ± 0.19
Latitude 44.2388 ± 0.0108
Longitude 11.2163 ± 0.0100
Depth (km) 51 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 79097921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1175
Semi-minor axis of confidence ellipse (meter) 317
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 12
Circular confidence region, given by single value of horizontal uncertainty (meter) 1180.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 56
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.64126
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 79097921
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-08-06 13:17:20

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 78978971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-09 10:41:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SGG.HHZ. 2020-05-09T10:29:07.21 3.0 negative manual Pg 11.44 0
GU.CANO.HHZ. 2020-05-09T10:29:01.04 3.0 undecidable manual Sn -0.69 0
IV.VENT.EHZ. 2020-05-09T10:28:59.87 3.0 negative manual Pn 2.56 0
IV.COR1.EHZ. 2020-05-09T10:28:51.38 3.0 undecidable manual Sg 7.4 0
IV.SSFR.HHZ. 2020-05-09T10:28:42.50 3.0 undecidable manual Sn -0.26 0
OX.MPRI.HHZ. 2020-05-09T10:28:37.15 3.0 undecidable manual Pn -2.7 0
ST.DOSS.HHZ. 2020-05-09T10:28:27.84 1.0 undecidable manual P 359 182.1843 95 -1.78 8
MN.VLC.HNZ. 2020-05-09T10:28:25.62 1.0 undecidable manual S 263 66.5778 114 0.67 20
GU.SARM.EHZ. 2020-05-09T10:28:25.17 0.6 undecidable manual S 265 65.1903 114 0.51 43
IV.RIBO.EHZ.01 2020-05-09T10:28:23.16 3.0 positive manual Pn 0.08 0
IV.ZOVE.EHZ. 2020-05-09T10:28:22.13 0.6 undecidable manual P 9 136.4634 98 -1.84 18
IV.RUFI.EHZ. 2020-05-09T10:28:21.65 0.6 undecidable manual S 152 50.2164 124 -0.2 47
IV.RINC.HHZ. 2020-05-09T10:28:21.82 0.6 undecidable manual S 141 50.0166 124 0.01 49
GU.POPM.HHZ. 2020-05-09T10:28:20.35 0.6 undecidable manual S 240 42.4242 130 -0.16 48
IV.BRIS.HHZ. 2020-05-09T10:28:20.58 1.0 undecidable manual S 92 43.7229 129 -0.15 24
IV.RONT.HHZ. 2020-05-09T10:28:19.12 0.6 undecidable manual S 148 32.2455 140 0.17 49
IV.MPPT.EHZ. 2020-05-09T10:28:19.07 0.6 undecidable manual S 198 32.745 139 0.04 50
IV.SEI.HHZ. 2020-05-09T10:28:17.95 0.6 undecidable manual S 151 23.3544 149 0.1 50
IV.VISG.HHZ. 2020-05-09T10:28:16.93 0.6 undecidable manual S 108 18.1707 156 -0.4 48
IV.PII.HHZ. 2020-05-09T10:28:16.58 0.3 undecidable manual P 224 79.5648 108 -0.48 63
IV.FNVD.HHZ. 2020-05-09T10:28:16.57 0.6 undecidable manual S 223 10.7781 165 -0.23 50
IV.SFI.HNZ. 2020-05-09T10:28:15.29 0.3 undecidable manual P 126 62.3931 116 0.21 69
GU.SARM.EHZ. 2020-05-09T10:28:15.90 0.1 undecidable manual P 265 65.1903 114 0.52 86
IV.ASQU.HHZ. 2020-05-09T10:28:15.72 0.3 undecidable manual P 137 67.0773 114 0.12 69
MN.VLC.HNZ. 2020-05-09T10:28:15.88 0.3 undecidable manual P 263 66.5778 114 0.34 67
GU.MAIM.HHZ. 2020-05-09T10:28:15.45 0.6 undecidable manual P 238 68.0763 113 -0.26 45
GU.CARD.HHZ. 2020-05-09T10:28:14.68 0.3 undecidable manual P 248 63.0924 116 -0.46 65
IV.BRIS.HHZ. 2020-05-09T10:28:13.09 0.6 undecidable manual P 92 43.7229 129 -0.02 50
IT.FIE.HGZ. 2020-05-09T10:28:13.31 0.1 undecidable manual P 173 48.3183 125 -0.25 94
IV.CRMI.HHZ. 2020-05-09T10:28:13.66 0.3 undecidable manual P 201 52.7028 122 -0.35 68
IV.RUFI.EHZ. 2020-05-09T10:28:13.55 0.3 undecidable manual P 152 50.2164 124 -0.2 71
IV.RINC.HHZ. 2020-05-09T10:28:13.69 0.1 undecidable manual P 141 50.0166 124 -0.04 98
GU.GSCL.HHZ. 2020-05-09T10:28:13.46 0.6 undecidable manual P 284 51.4152 123 -0.42 45
IV.LMD.HHZ. 2020-05-09T10:28:13.53 0.3 undecidable manual P 114 42.9237 130 0.5 67
GU.POPM.HHZ. 2020-05-09T10:28:13.05 0.3 undecidable manual P 240 42.4242 130 0.07 74
IV.MPPT.EHZ. 2020-05-09T10:28:12.08 0.3 undecidable manual P 198 32.745 139 -0.05 75
IV.RONT.HHZ. 2020-05-09T10:28:12.35 0.6 undecidable manual P 148 32.2455 140 0.27 48
IV.MTRZ.HHZ. 2020-05-09T10:28:11.77 0.1 undecidable manual P 64 18.4704 155 0.61 90
IV.ZCCA.HHZ. 2020-05-09T10:28:11.58 0.1 undecidable manual P 303 22.755 150 0.18 100
IV.SEI.HHZ. 2020-05-09T10:28:11.85 0.3 undecidable manual P 151 23.3544 149 0.41 71
IV.VISG.HHZ. 2020-05-09T10:28:10.97 0.3 undecidable manual P 108 18.1707 156 -0.18 75
IV.FNVD.HHZ. 2020-05-09T10:28:10.56 0.3 undecidable manual P 223 10.7781 165 -0.28 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VISG.HHE. ML:1.4 0.0000559 0.92 AML other m 2020-05-09T10:28:18.25
IV.VISG.HHN. ML:1.4 0.0000668 0.74 AML other m 2020-05-09T10:28:18.69
IV.SEI.HHN. ML:2.1 0.000317 0.46 AML other m 2020-05-09T10:28:18.91
IV.MPPT.EHE. ML:1.3 0.0000376 0.26 AML other m 2020-05-09T10:28:19.30
IV.RONT.HHE. ML:2.0 0.00021 0.92 AML other m 2020-05-09T10:28:20.07
IV.MPPT.EHN. ML:1.3 0.0000429 0.46 AML other m 2020-05-09T10:28:20.33
GU.POPM.HHE. ML:1.5 0.00006195 0.32 AML other m 2020-05-09T10:28:20.79
IV.SEI.HHE. ML:1.8 0.00014250000000000002 0.36 AML other m 2020-05-09T10:28:20.76
IV.RONT.HHN. ML:1.8 0.00014150000000000002 0.26 AML other m 2020-05-09T10:28:20.72
IV.ZCCA.HHN. ML:1.4 0.000056550000000000006 0.48 AML other m 2020-05-09T10:28:21.00
IV.ZCCA.HHE. ML:1.6 0.00008535000000000001 0.58 AML other m 2020-05-09T10:28:21.41
GU.POPM.HHN. ML:1.5 0.00005535 0.36 AML other m 2020-05-09T10:28:21.02
IV.MTRZ.HHE. ML:1.8 0.00014050000000000003 0.86 AML other m 2020-05-09T10:28:23.70
IV.BRIS.HHE. ML:1.8 0.0001185 0.22 AML other m 2020-05-09T10:28:23.58
IV.MTRZ.HHN. ML:1.6 0.0000998 1.04 AML other m 2020-05-09T10:28:23.54
IV.BRIS.HHN. ML:1.8 0.00012174999999999999 0.68 AML other m 2020-05-09T10:28:24.57
IV.ASQU.HHE. ML:1.3 0.0000248 0.46 AML other m 2020-05-09T10:28:26.53
IV.PII.HHN. ML:1.9 0.0000847 0.34 AML other m 2020-05-09T10:28:26.72
GU.CARD.HHE. ML:1.5 0.0000441 0.5 AML other m 2020-05-09T10:28:26.68
IV.PII.HHE. ML:1.8 0.00006645 0.26 AML other m 2020-05-09T10:28:27.24
IV.ASQU.HHN. ML:1.3 0.000026500000000000004 0.66 AML other m 2020-05-09T10:28:27.75
GU.CARD.HHN. ML:1.7 0.0000663 0.96 AML other m 2020-05-09T10:28:31.86
IV.SSFR.HHN. ML:2.0 0.000043450000000000006 0.06 AML other m 2020-05-09T10:28:42.56
IV.SSFR.HHE. ML:2.0 0.0000439 0.2 AML other m 2020-05-09T10:28:42.61
IV.ZOVE.EHN. ML:1.8 0.00002985 1.32 AML other m 2020-05-09T10:28:44.93
IV.ZOVE.EHE. ML:1.8 0.00002765 1.06 AML other m 2020-05-09T10:28:44.07
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