Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 01-09-2020 and time 18:03:10 (Italy) in region 6 km SW Ozzano dell'Emilia (BO)

A magnitude ML 1.6 earthquake occured in region: 6 km SW Ozzano dell'Emilia (BO), on

  • 01-09-2020 16:03:10 (UTC)
  • 01-09-2020 18:03:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.4030, 11.4290 at 23 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
Ozzano dell'Emilia BO 6 13596 13596
Pianoro BO 7 17460 31056
San Lazzaro di Savena BO 8 32065 63121
Monterenzio BO 9 6035 69156
Bologna BO 12 386663 455819
Castenaso BO 12 14925 470744
Castel San Pietro Terme BO 13 20811 491555
Casalecchio di Reno BO 15 36327 527882
Sasso Marconi BO 15 14735 542617
Dozza BO 17 6652 549269
Granarolo dell'Emilia BO 17 11910 561179
Loiano BO 17 4294 565473
Budrio BO 17 18412 583885
Monzuno BO 19 6328 590213
Medicina BO 19 16739 606952
Borgo Tossignano BO 19 3288 610240
Marzabotto BO 19 6779 617019
Casalfiumanese BO 19 3438 620457
Monte San Pietro BO 19 10982 631439
Fontanelice BO 19 1943 633382
Zola Predosa BO 19 18770 652152
Castel Maggiore BO 20 18231 670383

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km SE of Bologna (386663 inhabitants)
23 Km W of Imola (69797 inhabitants)
38 Km W of Faenza (58541 inhabitants)
48 Km SE of Modena (184973 inhabitants)
51 Km SW of Ferrara (133155 inhabitants)
53 Km W of Forlì (117913 inhabitants)
60 Km SE of Carpi (70699 inhabitants)
61 Km W of Ravenna (159116 inhabitants)
64 Km NE of Prato (191150 inhabitants)
66 Km NE of Pistoia (90315 inhabitants)
71 Km E of Reggio nell'Emilia (171345 inhabitants)
71 Km W of Cesena (96758 inhabitants)
72 Km N of Firenze (382808 inhabitants)
74 Km N of Scandicci (50609 inhabitants)
80 Km SW of Rovigo (51867 inhabitants)
97 Km NE of Lucca (89046 inhabitants)
98 Km E of Parma (192836 inhabitants)
98 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
Bulletin
Rev1000 		ML 1.6 2020-09-01
16:03:10		 44.4032 11.4288 23 2021-02-26
14:55:55		 Bollettino Sismico Italiano INGV 83005911
Reviewed
Rev100 		ML 1.6 2020-09-01
16:03:10		 44.4523 11.4625 10 2020-09-01
16:15:37		 Sala Sismica INGV-Roma 82534861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-01 16:03:10 ± 0.16
Latitude 44.4032 ± 0.0117
Longitude 11.4288 ± 0.0227
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83005911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1528
Semi-minor axis of confidence ellipse (meter) 1246
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 1530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 67
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.09083
Epicentral distance of station farthest from the epicenter (degree) 1.47039
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 82534861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-01 16:15:37

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 83005911
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-23 09:58:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
ST.VARA.HNZ. 2020-09-01T16:03:36.92 0.1 undecidable manual P 345 163.2144 54 0.24 78
OX.BALD.HHZ. 2020-09-01T16:03:35.50 0.6 undecidable manual P 342 149.8389 54 0.49 39
IV.MBAL.HNE. 2020-09-01T16:03:35.30 0.3 undecidable manual P 343 150.3384 54 0.22 63
IV.BADI.EHE. 2020-09-01T16:03:31.61 0.6 undecidable manual P 146 118.5924 97 0.96 35
IV.ZOVE.HNZ. 2020-09-01T16:03:29.49 0.3 undecidable manual P 2 116.5944 97 -0.85 55
IV.CRE.HHE. 2020-09-01T16:03:28.03 0.6 undecidable manual P 154 96.5256 98 0.76 40
IV.PARC.HHE. 2020-09-01T16:03:28.80 0.3 undecidable manual P 142 105.7164 97 0.12 71
IV.TEOL.HHE. 2020-09-01T16:03:28.26 0.1 undecidable manual P 10 108.0141 97 -0.77 78
IV.CSNT.HHZ. 2020-09-01T16:03:28.83 0.6 undecidable manual P 186 103.8183 98 0.45 44
GU.POPM.HHZ. 2020-09-01T16:03:24.17 0.6 undecidable manual P 234 66.5778 103 1.44 30
IV.IMOL.HNZ. 2020-09-01T16:03:23.08 0.6 undecidable manual S 101 25.3524 126 1.86 26
IV.ASQU.HHE. 2020-09-01T16:03:23.30 0.3 undecidable manual P 157 73.1712 101 -0.42 70
IV.RUFI.EHZ. 2020-09-01T16:03:22.26 0.3 undecidable manual P 174 62.9925 103 0.06 78
IV.FIU.EHN. 2020-09-01T16:03:21.76 0.6 undecidable manual S 11 26.751 124 0.23 54
IV.RINC.HHZ. 2020-09-01T16:03:21.09 0.3 undecidable manual P 166 59.0964 104 -0.51 70
IV.RONT.HHZ. 2020-09-01T16:03:20.13 0.6 undecidable manual P 180 45.4212 110 0.53 48
IV.VISG.HHZ. 2020-09-01T16:03:20.69 0.6 undecidable manual S 179 23.754 128 -0.19 54
IV.RAVA.EHN. 2020-09-01T16:03:20.90 0.6 undecidable manual P 328 46.1205 109 1.2 35
IV.MTRZ.HNN. 2020-09-01T16:03:19.21 0.3 undecidable manual S 182 10.0788 154 0.68 73
IV.CMPO.HNN. 2020-09-01T16:03:18.75 0.3 undecidable manual P 56 35.742 116 0.54 74
IV.ZCCA.HHZ. 2020-09-01T16:03:18.41 0.3 undecidable manual P 261 36.3414 115 0.11 80
IV.FNVD.HHZ. 2020-09-01T16:03:17.72 0.1 undecidable manual P 223 35.6421 116 -0.49 100
IV.BRIS.HHZ. 2020-09-01T16:03:17.14 0.3 undecidable manual P 126 33.3444 118 -0.74 67
IV.IMOL.HNZ. 2020-09-01T16:03:16.81 0.6 undecidable manual P 101 25.3524 126 -0.03 55
IV.FIU.EHN. 2020-09-01T16:03:15.95 0.3 undecidable manual P 11 26.751 124 -1.06 59
IV.VISG.HHZ. 2020-09-01T16:03:15.86 0.1 undecidable manual P 179 23.754 128 -0.78 90
IV.MTRZ.HNN. 2020-09-01T16:03:15.25 0.3 undecidable manual P 182 10.0788 154 -0.03 86
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ZCCA.HNE. ML:1.5 0.00010103909 0.7296 AML other m 2020-09-01T16:03:20.39
IV.VISG.HHN. ML:1.8 0.0002712051 0.2816 AML other m 2020-09-01T16:03:21.49
IV.VISG.HHE. ML:1.6 0.00019919075 0.256 AML other m 2020-09-01T16:03:21.37
IV.FNVD.HHE. ML:1.7 0.00016090484999999998 0.1024 AML other m 2020-09-01T16:03:24.26
IV.FNVD.HHN. ML:1.6 0.00014107945 0.1024 AML other m 2020-09-01T16:03:24.33
IV.ZCCA.HHN. ML:1.1 0.000045580555 0.3584 AML other m 2020-09-01T16:03:30.82
IV.ZCCA.HHE. ML:1.3 0.00006137141000000001 0.5376 AML other m 2020-09-01T16:03:32.33
IV.ZCCA.HNN. ML:1.8 0.0001978379 0.8576 AML other m 2020-09-01T16:03:37.19
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