Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 19-03-2020 and time 11:32:56 (Italy) in region 4 km NW Borgo Tossignano (BO)

A magnitude ML 1.8 earthquake occured in region: 4 km NW Borgo Tossignano (BO), on

  • 19-03-2020 10:32:56 (UTC)
  • 19-03-2020 11:32:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.3090, 11.5650 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 4 3288 3288
Casalfiumanese BO 4 3438 6726
Fontanelice BO 6 1943 8669
Dozza BO 8 6652 15321
Castel San Pietro Terme BO 10 20811 36132
Casola Valsenio RA 11 2617 38749
Castel del Rio BO 12 1246 39995
Monterenzio BO 13 6035 46030
Imola BO 13 69797 115827
Riolo Terme RA 13 5720 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
Pianoro BO 20 17460 174251
Medicina BO 20 16739 190990
Loiano BO 20 4294 195284

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km W of Imola (69797 inhabitants)
26 Km W of Faenza (58541 inhabitants)
27 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)
63 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)
75 Km SE of Carpi (70699 inhabitants)
85 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 1.8 2020-03-19
10:32:56		 44.3093 11.5648 24 2020-07-18
21:08:30		 Bollettino Sismico Italiano INGV 77836161
Reviewed
Rev100 		ML 1.6 2020-03-19
10:32:57		 44.2888 11.532 10 2020-03-19
10:42:01		 Sala Sismica INGV-Roma 77376851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-19 10:32:56 ± 0.34
Latitude 44.3093 ± 0.0126
Longitude 11.5648 ± 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 77836161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1132
Semi-minor axis of confidence ellipse (meter) 912
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 183
Circular confidence region, given by single value of horizontal uncertainty (meter) 1130.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.09982
Epicentral distance of station farthest from the epicenter (degree) 0.47304
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 77836161
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-05 22:31:20

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 77376851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-19 10:42:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RUFI.EHE. 2020-03-19T10:33:14.08 0.3 undecidable manual S 185 52.503 107 0.62 64
IV.SFI.EHZ. 2020-03-19T10:33:13.55 0.3 undecidable manual S 153 50.2164 108 0.67 64
IV.RINC.HHN. 2020-03-19T10:33:12.82 0.3 undecidable manual S 176 47.0196 109 0.74 62
IV.FNVD.HHZ. 2020-03-19T10:33:10.40 0.3 undecidable manual S 246 38.4282 114 0.45 69
IV.RONT.HHZ. 2020-03-19T10:33:09.85 0.3 undecidable manual S 197 36.5412 116 0.36 71
IV.SEI.HHZ. 2020-03-19T10:33:08.29 0.3 undecidable manual S 210 32.745 119 -0.29 72
IV.LMD.HHZ. 2020-03-19T10:33:07.19 0.3 undecidable manual S 156 28.1496 123 -0.33 71
IV.RUFI.EHE. 2020-03-19T10:33:06.19 0.1 undecidable manual P 185 52.503 107 -0.09 95
IV.SFI.EHZ. 2020-03-19T10:33:05.86 0.1 undecidable manual P 153 50.2164 108 -0.09 95
IV.BRIS.HHZ. 2020-03-19T10:33:05.26 0.3 undecidable manual S 120 18.5703 137 -0.3 73
IV.RINC.HHN. 2020-03-19T10:33:05.52 0.1 undecidable manual P 176 47.0196 109 0.03 99
IV.MTRZ.HHZ. 2020-03-19T10:33:05.14 0.6 undecidable manual S 272 11.0778 151 0.75 43
IV.IMOL.HNZ. 2020-03-19T10:33:05.73 0.6 undecidable manual S 68 15.1737 143 0.76 43
IV.VISG.HHZ. 2020-03-19T10:33:04.75 0.6 undecidable manual S 218 16.872 140 -0.52 47
IV.FNVD.HHZ. 2020-03-19T10:33:04.35 0.1 undecidable manual P 246 38.4282 114 0.09 100
IV.SEI.HHZ. 2020-03-19T10:33:03.19 0.1 undecidable manual P 210 32.745 119 -0.28 96
IV.RONT.HHZ. 2020-03-19T10:33:03.98 0.1 undecidable manual P 197 36.5412 116 -0.02 100
IV.IMOL.HNZ. 2020-03-19T10:33:02.48 0.6 undecidable manual P 68 15.1737 143 1.09 38
IV.LMD.HHZ. 2020-03-19T10:33:02.15 0.1 undecidable manual P 156 28.1496 123 -0.71 83
IV.BRIS.HHZ. 2020-03-19T10:33:01.54 0.1 undecidable manual P 120 18.5703 137 -0.19 99
IV.VISG.HHZ. 2020-03-19T10:33:00.59 0.1 undecidable manual P 218 16.872 140 -0.97 77
IV.MTRZ.HHZ. 2020-03-19T10:33:00.95 0.3 undecidable manual P 272 11.0778 151 -0.1 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VISG.HHN. ML:1.8 0.0003575 0.14 AML other m 2020-03-19T10:33:05.39
IV.BRIS.HHE. ML:1.8 0.00035150000000000003 0.38 AML other m 2020-03-19T10:33:05.55
IV.MTRZ.HHE. ML:1.9 0.000499 0.2 AML other m 2020-03-19T10:33:06.13
IV.MTRZ.HNE. ML:1.9 0.0004676414 0.2048 AML other m 2020-03-19T10:33:06.13
IV.LMD.HHE. ML:1.8 0.000249 1.64 AML other m 2020-03-19T10:33:07.10
IV.BRIS.HHN. ML:1.7 0.00023249999999999999 0.24 AML other m 2020-03-19T10:33:07.83
IV.LMD.HHN. ML:1.9 0.00034199999999999996 0.26 AML other m 2020-03-19T10:33:08.07
IV.SEI.HHE. ML:2.0 0.00032250000000000003 0.46 AML other m 2020-03-19T10:33:11.01
IV.SFI.EHE. ML:1.5 0.00006905 1.44 AML other m 2020-03-19T10:33:13.02
IV.SFI.EHN. ML:1.7 0.00011300000000000001 0.48 AML other m 2020-03-19T10:33:14.48
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