Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 20-04-2020 and time 01:06:20 (Italy) in region 5 km NW Vergato (BO)

A magnitude ML 1.9 earthquake occured in region: 5 km NW Vergato (BO), on

  • 19-04-2020 23:06:20 (UTC)
  • 20-04-2020 01:06:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3140, 11.0620 at 18 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
Vergato BO 5 7639 7639
Castel d'Aiano BO 6 1906 9545
Zocca MO 6 4719 14264
Grizzana Morandi BO 10 3916 18180
Montese MO 11 3353 21533
Marzabotto BO 12 6779 28312
Guiglia MO 15 3931 32243
Camugnano BO 16 1885 34128
Gaggio Montano BO 16 4878 39006
Castel di Casio BO 17 3448 42454
Sasso Marconi BO 17 14735 57189
Monzuno BO 17 6328 63517
San Benedetto Val di Sambro BO 18 4315 67832
Marano sul Panaro MO 18 5060 72892
Pavullo nel Frignano MO 18 17383 90275
Savignano sul Panaro MO 19 9177 99452
Alto Reno Terme BO 19 6960 106412
Vignola MO 19 25353 131765
Monte San Pietro BO 20 10982 142747

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km SW of Bologna (386663 inhabitants)
39 Km S of Modena (184973 inhabitants)
44 Km N of Pistoia (90315 inhabitants)
48 Km N of Prato (191150 inhabitants)
52 Km W of Imola (69797 inhabitants)
54 Km S of Carpi (70699 inhabitants)
55 Km SE of Reggio nell'Emilia (171345 inhabitants)
62 Km N of Firenze (382808 inhabitants)
62 Km N of Scandicci (50609 inhabitants)
66 Km W of Faenza (58541 inhabitants)
69 Km NE of Lucca (89046 inhabitants)
73 Km SW of Ferrara (133155 inhabitants)
79 Km W of Forlì (117913 inhabitants)
80 Km SE of Parma (192836 inhabitants)
80 Km E of Massa (69479 inhabitants)
81 Km E of Carrara (63133 inhabitants)
82 Km NE of Viareggio (62467 inhabitants)
85 Km NE of Pisa (89158 inhabitants)
91 Km W of Ravenna (159116 inhabitants)
96 Km W of Cesena (96758 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 1.9 2020-04-19
23:06:20		 44.3138 11.0617 19 2020-07-18
21:08:33		 Bollettino Sismico Italiano INGV 78413411
Reviewed
Rev100 		ML 1.9 2020-04-19
23:06:20		 44.3043 11.0477 21 2020-04-19
23:18:11		 Sala Sismica INGV-Roma 78400501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-19 23:06:20 ± 0.08
Latitude 44.3138 ± 0.0045
Longitude 11.0617 ± 0.0050
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 78413411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 530
Semi-minor axis of confidence ellipse (meter) 62
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 11
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.94429
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 78413411
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-20 11:26:04

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 78400501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-19 23:18:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ZONE.HNZ. 2020-04-19T23:06:50.82 3.0 positive manual Pg 0.89 0
SI.LUSI.HHZ. 2020-04-19T23:06:49.98 3.0 positive manual Pn -0.75 0
MN.VLC.HHZ. 2020-04-19T23:06:38.32 0.6 undecidable manual S 253 56.2992 100 0.33 45
GU.CARD.HHZ. 2020-04-19T23:06:38.20 0.3 undecidable manual S 236 56.0994 100 0.28 67
IV.CRE.HHZ. 2020-04-19T23:06:38.18 0.3 undecidable manual P 137 104.8173 95 0.23 62
IV.CSNT.HHZ. 2020-04-19T23:06:36.64 0.6 undecidable manual P 169 95.0382 95 0.2 42
IV.SFI.EHZ. 2020-04-19T23:06:33.68 0.3 undecidable manual P 126 77.2671 97 -0.04 69
IV.SEI.HHZ. 2020-04-19T23:06:33.15 0.3 undecidable manual S 141 37.2294 106 0.13 72
GU.GRAM.HHZ. 2020-04-19T23:06:33.97 0.1 undecidable manual P 284 81.3519 96 -0.38 84
GU.GSCL.HHZ. 2020-04-19T23:06:33.47 0.6 undecidable manual S 276 37.8288 106 0.31 47
GU.POPM.HHZ. 2020-04-19T23:06:33.65 0.3 undecidable manual S 219 38.4282 106 0.33 69
IV.PII.HHZ. 2020-04-19T23:06:33.65 0.3 undecidable manual P 213 78.366 96 -0.24 66
IV.FERS.HNN. 2020-04-19T23:06:33.60 0.1 undecidable manual P 30 75.5688 97 0.14 91
IV.VISG.HHZ. 2020-04-19T23:06:32.21 0.3 undecidable manual S 115 32.6451 109 0.35 69
IV.RINC.HHZ. 2020-04-19T23:06:31.75 0.1 undecidable manual P 137 64.2912 98 0.01 94
GU.MAIM.HHZ. 2020-04-19T23:06:31.53 0.1 undecidable manual P 226 63.492 98 -0.08 93
IV.CAVE.HHZ. 2020-04-19T23:06:31.53 0.6 undecidable manual P 356 61.3941 99 0.23 46
IV.CRMI.HNZ. 2020-04-19T23:06:31.07 0.3 undecidable manual P 187 57.8976 99 0.31 67
GU.CARD.HHZ. 2020-04-19T23:06:30.16 0.6 undecidable manual P 236 56.0994 100 -0.33 45
GU.SARM.EHZ. 2020-04-19T23:06:30.09 0.6 undecidable manual P 255 54.501 100 -0.15 47
IV.BRIS.HHZ. 2020-04-19T23:06:30.35 0.3 undecidable manual P 100 56.8986 100 -0.25 68
IV.LMD.HHZ. 2020-04-19T23:06:30.39 0.3 undecidable manual P 117 57.6978 99 -0.34 67
IV.RAVA.EHZ. 2020-04-19T23:06:30.42 0.3 undecidable manual P 5 49.2174 101 0.97 55
MN.VLC.HHZ. 2020-04-19T23:06:30.77 0.3 undecidable manual P 253 56.2992 100 0.25 68
IV.RONT.HHZ. 2020-04-19T23:06:29.01 0.6 undecidable manual P 140 46.2204 102 0.01 48
IV.FIU.EHZ. 2020-04-19T23:06:29.70 0.3 undecidable manual P 43 49.7169 101 0.18 71
IV.BDI.HHZ. 2020-04-19T23:06:28.85 0.6 negative manual P 233 46.3203 102 -0.17 47
IV.FNVD.HHZ. 2020-04-19T23:06:28.47 0.6 undecidable manual S 163 16.872 130 0.31 48
GU.POPM.HHZ. 2020-04-19T23:06:27.68 0.3 undecidable manual P 219 38.4282 106 -0.15 72
IV.MPPT.EHZ. 2020-04-19T23:06:27.68 0.3 undecidable manual P 177 39.627 105 -0.32 70
IV.MODE.HNZ. 2020-04-19T23:06:27.29 0.1 undecidable manual P 346 36.1416 107 -0.2 94
IV.SEI.HHZ. 2020-04-19T23:06:27.42 0.3 undecidable manual P 141 37.2294 106 -0.23 71
GU.GSCL.HHZ. 2020-04-19T23:06:27.44 0.6 undecidable manual P 276 37.8288 106 -0.3 46
IV.MTRZ.HHZ. 2020-04-19T23:06:26.86 0.6 undecidable manual P 90 28.8489 113 0.43 46
IV.VISG.HHZ. 2020-04-19T23:06:26.55 0.1 negative manual P 115 32.6451 109 -0.44 91
IV.FNVD.HHZ. 2020-04-19T23:06:24.58 0.1 positive manual P 163 16.872 130 -0.27 97
IV.ZCCA.HHZ. 2020-04-19T23:06:23.82 0.1 positive manual P 301 7.881 153 -0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ZCCA.HHN. ML:2.2 0.00138 0.3 AML other m 2020-04-19T23:06:28.58
IV.ZCCA.HNN. ML:2.2 0.001305 0.32 AML other m 2020-04-19T23:06:28.58
IV.ZCCA.HHE. ML:2.0 0.0008874999999999999 0.84 AML other m 2020-04-19T23:06:28.88
IV.ZCCA.HNE. ML:2.0 0.000883 0.84 AML other m 2020-04-19T23:06:28.89
IV.FNVD.HHE. ML:2.6 0.0024 1.84 AML other m 2020-04-19T23:06:28.07
IV.FNVD.HHN. ML:2.6 0.002645 0.1 AML other m 2020-04-19T23:06:29.18
IV.VISG.HHE. ML:2.1 0.0005249999999999999 1.1 AML other m 2020-04-19T23:06:33.24
IV.VISG.HHN. ML:2.1 0.0005015000000000001 1.36 AML other m 2020-04-19T23:06:34.12
GU.POPM.HHE. ML:2.0 0.0003555 0.2 AML other m 2020-04-19T23:06:34.81
GU.POPM.HHN. ML:2.1 0.0004285 1.8 AML other m 2020-04-19T23:06:34.96
IV.MPPT.EHN. ML:1.2 0.00005505 1.36 AML other m 2020-04-19T23:06:35.86
IV.SEI.HHN. ML:2.2 0.0006405000000000001 1.5 AML other m 2020-04-19T23:06:35.98
IV.MPPT.EHE. ML:1.5 0.00009695000000000001 0.46 AML other m 2020-04-19T23:06:35.93
GU.GSCL.HHE. ML:1.7 0.0001625 0.24 AML other m 2020-04-19T23:06:36.06
IV.BDI.HNN. ML:2.0 0.000249 0.42 AML other m 2020-04-19T23:06:36.34
GU.GSCL.HHN. ML:1.7 0.0001865 1.02 AML other m 2020-04-19T23:06:36.68
IV.MTRZ.HHN. ML:2.1 0.00051 0.44 AML other m 2020-04-19T23:06:36.47
IV.MTRZ.HNN. ML:2.0 0.00048499999999999997 0.54 AML other m 2020-04-19T23:06:36.47
IV.BDI.HHN. ML:1.9 0.00020400000000000003 0.42 AML other m 2020-04-19T23:06:36.69
IV.BDI.HNE. ML:1.9 0.00023300000000000003 1.72 AML other m 2020-04-19T23:06:36.89
IV.SEI.HHE. ML:2.2 0.000479 1.64 AML other m 2020-04-19T23:06:37.82
IV.MTRZ.HHE. ML:2.0 0.00042200000000000007 0.6 AML other m 2020-04-19T23:06:37.47
IV.MTRZ.HNE. ML:2.0 0.0004325 0.58 AML other m 2020-04-19T23:06:37.47
IV.BDI.HHE. ML:2.0 0.0002455 1.56 AML other m 2020-04-19T23:06:37.19
IV.RONT.HHN. ML:2.0 0.0002395 1.24 AML other m 2020-04-19T23:06:38.99
GU.CARD.HHE. ML:2.0 0.00020600000000000002 0.12 AML other m 2020-04-19T23:06:38.88
IV.RONT.HHE. ML:2.0 0.00027400000000000005 0.22 AML other m 2020-04-19T23:06:39.02
GU.CARD.HHN. ML:1.9 0.0001595 1.3 AML other m 2020-04-19T23:06:39.87
MN.VLC.HHE. ML:1.4 0.00004815 0.24 AML other m 2020-04-19T23:06:39.88
MN.VLC.HHN. ML:1.3 0.0000387 0.68 AML other m 2020-04-19T23:06:40.37
IV.BRIS.HHE. ML:1.8 0.0001305 0.3 AML other m 2020-04-19T23:06:42.59
IV.LMD.HHN. ML:1.5 0.0000582 0.24 AML other m 2020-04-19T23:06:42.55
IV.BRIS.HHN. ML:1.7 0.00010105 0.48 AML other m 2020-04-19T23:06:43.54
IV.LMD.HHE. ML:1.5 0.0000686 1.66 AML other m 2020-04-19T23:06:44.96
IV.PII.HHN. ML:1.8 0.00008585 0.34 AML other m 2020-04-19T23:06:46.30
IV.PII.HHE. ML:1.9 0.0001098 1.24 AML other m 2020-04-19T23:06:47.70
IV.SFI.EHE. ML:1.4 0.00003735 0.32 AML other m 2020-04-19T23:06:52.25
IV.CSNT.HHE. ML:1.3 0.00002065 0.64 AML other m 2020-04-19T23:06:53.34
IV.SFI.EHN. ML:1.5 0.0000427 0.74 AML other m 2020-04-19T23:06:53.68
IV.CRE.HHN. ML:1.5 0.0000306 0.6 AML other m 2020-04-19T23:06:53.68
IV.CRE.HHE. ML:1.3 0.000020150000000000002 0.46 AML other m 2020-04-19T23:06:56.93
IV.CSNT.HHN. ML:1.3 0.00002205 1.58 AML other m 2020-04-19T23:06:57.11
IV.ZONE.HHN. ML:2.0 0.00003715 0.24 AML other m 2020-04-19T23:07:12.29
IV.ZONE.HHE. ML:2.0 0.0000373 0.42 AML other m 2020-04-19T23:07:13.73
SI.LUSI.HHN. ML:2.2 0.000059999999999999995 1.54 AML other m 2020-04-19T23:07:15.06
SI.LUSI.HHE. ML:2.0 0.000036 0.56 AML other m 2020-04-19T23:07:16.66
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