Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 17-08-2020 and time 19:04:31 (Italy) in region 5 km SE Ozzano dell'Emilia (BO)

A magnitude ML 2.2 earthquake occured in region: 5 km SE Ozzano dell'Emilia (BO), on

  • 17-08-2020 17:04:31 (UTC)
  • 17-08-2020 19:04:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.4100, 11.5100 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
Ozzano dell'Emilia BO 5 13596 13596
Castel San Pietro Terme BO 7 20811 34407
San Lazzaro di Savena BO 11 32065 66472
Dozza BO 11 6652 73124
Castenaso BO 12 14925 88049
Monterenzio BO 13 6035 94084
Medicina BO 13 16739 110823
Pianoro BO 14 17460 128283
Castel Guelfo di Bologna BO 14 4455 132738
Budrio BO 14 18412 151150
Casalfiumanese BO 15 3438 154588
Borgo Tossignano BO 16 3288 157876
Bologna BO 16 386663 544539
Granarolo dell'Emilia BO 17 11910 556449
Fontanelice BO 17 1943 558392
Imola BO 17 69797 628189
Casalecchio di Reno BO 20 36327 664516

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km SE of Bologna (386663 inhabitants)
17 Km W of Imola (69797 inhabitants)
33 Km W of Faenza (58541 inhabitants)
47 Km W of Forlì (117913 inhabitants)
48 Km S of Ferrara (133155 inhabitants)
53 Km E of Modena (184973 inhabitants)
55 Km W of Ravenna (159116 inhabitants)
65 Km SE of Carpi (70699 inhabitants)
66 Km W of Cesena (96758 inhabitants)
67 Km NE of Prato (191150 inhabitants)
71 Km NE of Pistoia (90315 inhabitants)
74 Km N of Firenze (382808 inhabitants)
77 Km E of Reggio nell'Emilia (171345 inhabitants)
77 Km SW of Rovigo (51867 inhabitants)
77 Km NE of Scandicci (50609 inhabitants)
93 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 2.2 2020-08-17
17:04:31		 44.41 11.5103 18 2020-11-19
12:37:05		 Bollettino Sismico Italiano INGV 84027531
Reviewed
Rev100 		ML 2.4 2020-08-17
17:04:30		 44.4635 11.2908 25 2020-08-17
17:24:00		 Sala Sismica INGV-Roma 82093491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-17 17:04:31 ± 0.1
Latitude 44.4100 ± 0.0072
Longitude 11.5103 ± 0.0164
Depth (km) 18 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84027531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1173
Semi-minor axis of confidence ellipse (meter) 780
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 264
Circular confidence region, given by single value of horizontal uncertainty (meter) 1170.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 62
Number of defining phases 46
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.49
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.71681
Number of stations at which the event was observed 50
Number of stations from which data was used for origin computation 35
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.4
Num. used stations 18
Type of magnitude ML
Reference to an origin 84027531
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-22 12:55:52

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 82093491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-17 17:24:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PAOL.HHZ. 2020-08-17T17:06:23.41 3.0 undecidable manual Sn 1.62 0
CR.ZAG.BHZ. 2020-08-17T17:06:12.26 3.0 undecidable manual Sn 5.55 0
IV.TDS.HHZ. 2020-08-17T17:06:05.67 3.0 negative manual Pn 6.23 0
IV.CMPR.HHZ. 2020-08-17T17:05:59.42 3.0 undecidable manual Pg 13.61 0
IV.SLCN.HHZ. 2020-08-17T17:05:51.45 3.0 positive manual Pn 4.49 0
IV.CRTO.HHZ. 2020-08-17T17:05:47.60 3.0 negative manual Pg 12.5 0
OX.DRE.HHZ. 2020-08-17T17:05:39.50 3.0 undecidable manual Sn 1.16 0
IV.ROSPO.HHZ. 2020-08-17T17:05:36.12 3.0 negative manual Pg 13.04 0
IV.TREM.HHZ. 2020-08-17T17:05:29.51 3.0 negative manual Pn 0.95 0
SI.LUSI.HHZ. 2020-08-17T17:05:20.80 0.3 undecidable manual S 346 177.489 54 0.68 45
ST.DOSS.HHZ. 2020-08-17T17:05:17.10 0.6 undecidable manual S 351 165.1125 54 -0.34 35
ST.VARA.EHZ. 2020-08-17T17:05:17.60 0.6 undecidable manual S 343 164.2134 54 0.34 35
IV.MMO1.EHZ. 2020-08-17T17:05:09.68 3.0 undecidable manual Pg 4.48 0
OX.DRE.HHZ. 2020-08-17T17:05:07.45 3.0 undecidable manual Pn -1.56 0
IV.PII.HHZ. 2020-08-17T17:05:04.23 0.6 undecidable manual S 226 109.5126 94 0.95 33
IV.STAL.HHZ. 2020-08-17T17:05:03.68 3.0 undecidable manual Pn -1.36 0
OX.CIMO.HHZ. 2020-08-17T17:05:03.19 3.0 positive manual Pn -1.54 0
ST.ZIAN.EHZ. 2020-08-17T17:05:01.13 3.0 undecidable manual Pn -1.57 0
ST.RONC.EHZ. 2020-08-17T17:05:01.35 0.1 undecidable manual P 339 187.4679 54 0.53 60
ST.GAGG.HHZ. 2020-08-17T17:05:00.98 0.1 undecidable manual P 347 190.5648 54 -0.22 63
ST.PANI.EHZ. 2020-08-17T17:05:00.29 0.1 undecidable manual P 356 182.484 54 0.09 68
SI.LUSI.HHZ. 2020-08-17T17:04:59.21 0.6 undecidable manual P 346 177.489 54 -0.37 33
ST.DOSS.HHZ. 2020-08-17T17:04:57.69 0.1 undecidable manual P 351 165.1125 54 -0.34 70
ST.VARA.EHZ. 2020-08-17T17:04:57.35 0.1 undecidable manual P 343 164.2134 54 -0.58 66
IV.MAGA.HHZ. 2020-08-17T17:04:57.75 0.3 undecidable manual P 336 166.4112 54 -0.45 51
IV.MBAL.EHZ. 2020-08-17T17:04:55.79 0.1 undecidable manual P 341 151.6371 93 -0.55 70
IT.FIE.HGZ. 2020-08-17T17:04:55.88 3.0 undecidable manual S 1.22 0
IV.ASQU.HHZ. 2020-08-17T17:04:54.20 0.6 undecidable manual S 162 71.5728 97 1.01 34
IV.ATPI.EHZ. 2020-08-17T17:04:53.85 0.3 undecidable manual P 146 128.0718 94 1.15 43
IV.CAFI.HHZ. 2020-08-17T17:04:52.50 0.6 undecidable manual P 163 125.2746 94 0.22 40
IV.SFI.EHZ. 2020-08-17T17:04:51.50 1.0 undecidable manual S 154 62.0934 98 0.81 19
IV.PE3.EHZ. 2020-08-17T17:04:51.18 0.3 undecidable manual P 135 111.5994 94 1.01 47
IV.PII.HHZ. 2020-08-17T17:04:50.09 0.1 undecidable manual P 226 109.5126 94 0.24 83
IV.CSNT.HHZ. 2020-08-17T17:04:49.88 0.1 undecidable manual P 190 105.4167 94 0.66 75
IV.PARC.HHZ. 2020-08-17T17:04:48.70 0.1 undecidable manual P 145 102.5196 95 -0.08 88
GU.MAIM.HHZ. 2020-08-17T17:04:48.86 0.6 undecidable manual P 236 97.9242 95 0.78 36
MN.VLC.HHZ. 2020-08-17T17:04:48.40 0.1 undecidable manual P 253 93.4398 95 1.01 66
IV.RONT.HHZ. 2020-08-17T17:04:46.80 0.3 undecidable manual S 188 46.62 102 0.19 71
IV.BDI.HNZ. 2020-08-17T17:04:46.63 0.3 undecidable manual P 242 82.251 96 0.96 52
IV.CRMI.HNN. 2020-08-17T17:04:45.97 0.1 undecidable manual P 212 80.1642 96 0.62 80
GU.POPM.HHZ. 2020-08-17T17:04:44.55 0.1 undecidable manual P 236 72.2721 97 0.41 87
IV.SEI.HHZ. 2020-08-17T17:04:44.50 0.3 undecidable manual S 197 41.2254 104 -0.72 62
IV.ASQU.HHZ. 2020-08-17T17:04:43.49 0.1 undecidable manual P 162 71.5728 97 -0.54 84
IV.SFI.EHZ. 2020-08-17T17:04:42.20 0.1 undecidable manual P 154 62.0934 98 -0.39 89
IV.RUFI.EHZ. 2020-08-17T17:04:42.47 0.1 undecidable manual P 180 63.492 98 -0.32 90
IV.MPPT.EHN. 2020-08-17T17:04:41.81 0.3 undecidable manual P 214 60.2952 99 -0.5 65
IV.FIU.EHZ. 2020-08-17T17:04:41.10 0.6 undecidable manual S 357 25.5522 116 -0.17 49
IV.RINC.HHZ. 2020-08-17T17:04:41.44 0.1 undecidable manual P 172 58.5969 99 -0.61 84
IV.VISG.HHZ. 2020-08-17T17:04:40.90 0.3 undecidable manual S 194 25.2525 116 -0.29 73
IV.ZCCA.HHZ. 2020-08-17T17:04:40.09 0.3 undecidable manual P 261 42.8238 103 0.43 68
IV.MOCL.EHZ. 2020-08-17T17:04:40.43 0.1 undecidable manual P 210 52.0035 100 -0.62 84
IV.MTRZ.HHZ. 2020-08-17T17:04:39.40 0.3 undecidable manual S 212 12.7761 139 0.9 60
IV.RONT.HHZ. 2020-08-17T17:04:39.76 0.3 undecidable manual P 188 46.62 102 -0.47 67
IV.SEI.HHZ. 2020-08-17T17:04:38.71 0.1 undecidable manual P 197 41.2254 104 -0.72 83
IV.FNVD.HHZ. 2020-08-17T17:04:38.08 0.1 undecidable manual P 229 40.8258 104 -1.29 63
IV.CMPO.HNZ. 2020-08-17T17:04:38.47 0.1 undecidable manual P 51 30.0477 111 0.69 86
IV.RAVA.EHE. 2020-08-17T17:04:37.81 3.0 undecidable manual P -0.01 0
IV.BRIS.HHN. 2020-08-17T17:04:37.42 0.3 undecidable manual P 135 28.9488 112 -0.19 74
IV.VISG.HHZ. 2020-08-17T17:04:36.24 0.1 positive manual P 194 25.2525 116 -0.86 80
IV.IMOL.EHZ. 2020-08-17T17:04:36.78 0.1 undecidable manual P 107 19.2696 125 0.48 94
IV.FIU.EHZ. 2020-08-17T17:04:36.46 0.3 undecidable manual P 357 25.5522 116 -0.69 64
IV.MTRZ.HHZ. 2020-08-17T17:04:35.79 0.1 positive manual P 212 12.7761 139 0.24 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRZ.HNN. ML:0.0 0.0014444013500000002 0.4736 AML other m 2020-08-17T17:04:40.13
IV.ZCCA.HHE. ML:0.0 0.000041010538999999996 1.7952 AML other m 2020-08-17T17:04:40.09
IV.ZCCA.HNN. ML:0.0 0.000031980334 0.2048 AML other m 2020-08-17T17:04:41.08
IV.ZCCA.HNE. ML:0.0 0.000082275265 0.2048 AML other m 2020-08-17T17:04:41.48
IV.MTRZ.HHN. ML:0.0 0.0030722930000000002 0.4096 AML other m 2020-08-17T17:04:39.88
IV.MTRZ.HHE. ML:0.0 0.001976906 1.4208 AML other m 2020-08-17T17:04:39.99
IV.MTRZ.HNE. ML:0.0 0.001890732 1.4208 AML other m 2020-08-17T17:04:39.99
IV.IMOL.HNE. ML:0.0 0.00046204460000000004 0.192 AML other m 2020-08-17T17:04:44.56
IV.IMOL.HNN. ML:0.0 0.0005545213 0.4096 AML other m 2020-08-17T17:04:44.40
IV.FIU.EHE. ML:0.0 0.00061267385 0.9088 AML other m 2020-08-17T17:04:41.55
IV.FIU.EHN. ML:0.0 0.00058706145 1.4464 AML other m 2020-08-17T17:04:41.55
IV.ZCCA.HHN. ML:0.0 0.00013350000000000002 0.72 AML other m 2020-08-17T17:04:57.98
ST.DOSS.HNE. ML:0.0 0.00015200315 1.2704 AML other m 2020-08-17T17:05:18.73
ST.DOSS.HHE. ML:0.0 0.0003895 0.5 AML other m 2020-08-17T17:05:19.53
ST.DOSS.HNN. ML:0.0 0.000381 0.5 AML other m 2020-08-17T17:05:19.53
ST.DOSS.HHN. ML:0.0 0.0005285 1.48 AML other m 2020-08-17T17:05:20.17
IV.VISG.HHN. ML:2.4 0.001346245 1.2928 AML other m 2020-08-17T17:04:41.39
IV.VISG.HHE. ML:2.0 0.0005160293 0.3712 AML other m 2020-08-17T17:04:41.45
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
Waveforms Seismic signals in miniseed + resp format Download