Earthquake with magnitude of ML 1.9 on date 01-08-2020 and time 21:48:59 (Italy) in region 3 km W Imola (BO)

A magnitude ML 1.9 earthquake occured in region: 3 km W Imola (BO), on

  • 01-08-2020 19:48:59 (UTC)
  • 01-08-2020 21:48:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.34, 11.68 at 30 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Imola BO 3 69797 69797
Dozza BO 5 6652 76449
Casalfiumanese BO 7 3438 79887
Riolo Terme RA 8 5720 85607
Castel San Pietro Terme BO 10 20811 106418
Castel Bolognese RA 10 9554 115972
Castel Guelfo di Bologna BO 10 4455 120427
Borgo Tossignano BO 10 3288 123715
Mordano BO 12 4760 128475
Bagnara di Romagna RA 13 2429 130904
Solarolo RA 13 4488 135392
Fontanelice BO 14 1943 137335
Casola Valsenio RA 14 2617 139952
Brisighella RA 15 7639 147591
Medicina BO 15 16739 164330
Massa Lombarda RA 16 10653 174983
Faenza RA 17 58541 233524
Sant'Agata sul Santerno RA 18 2862 236386
Ozzano dell'Emilia BO 20 13596 249982

Municipalities with at least 50000 inhabitants

An earthquake occurred to
3 Km W of Imola (69797 inhabitants)
17 Km W of Faenza (58541 inhabitants)
32 Km W of Forlì (117913 inhabitants)
32 Km SE of Bologna (386663 inhabitants)
42 Km W of Ravenna (159116 inhabitants)
50 Km W of Cesena (96758 inhabitants)
55 Km S of Ferrara (133155 inhabitants)
69 Km E of Modena (184973 inhabitants)
69 Km NE of Prato (191150 inhabitants)
72 Km NE of Firenze (382808 inhabitants)
76 Km NE of Pistoia (90315 inhabitants)
76 Km NE of Scandicci (50609 inhabitants)
77 Km W of Rimini (147750 inhabitants)
80 Km SE of Carpi (70699 inhabitants)
81 Km S of Rovigo (51867 inhabitants)
92 Km E of Reggio nell'Emilia (171345 inhabitants)
99 Km N of Arezzo (99543 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.9 2020-08-01
19:48:59
44.34 11.68 30 2020-08-01
19:55:54
Sala Sismica INGV-Roma 81556471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-01 19:48:59 ± 0.24
Latitude 44.34 ± 0.01
Longitude 11.68 ± 0.01
Depth (km) 30 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81556471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1132
Semi-minor axis of confidence ellipse (meter) 1050
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 128
Circular confidence region, given by single value of horizontal uncertainty (meter) 1130
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.49373
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 81556471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-01 19:55:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PIGN.HHZ. 2020-08-01T19:50:51.35 3.0 undecidable manual Sg 10.39 0
IV.PTRJ.HHZ. 2020-08-01T19:50:46.91 3.0 undecidable manual Sn 5.84 0
IV.SALB.HHZ. 2020-08-01T19:50:43.17 3.0 positive manual Pg 17.85 0
SL.BOJS.BHZ. 2020-08-01T19:50:31.42 3.0 undecidable manual Sn 9.04 0
IV.CET2.HHZ. 2020-08-01T19:50:30.37 3.0 undecidable manual Pn 3.5 0
IV.PTRJ.HHZ. 2020-08-01T19:50:12.04 3.0 undecidable manual Pg 14.42 0
GU.RRL.HHZ. 2020-08-01T19:50:03.62 3.0 undecidable manual Pn 7.15 0
IV.MAON.HHZ. 2020-08-01T19:50:03.44 3.0 undecidable manual Sg 4.36 0
IV.RMP.HHZ. 2020-08-01T19:49:47.87 3.0 positive manual Pg 4.24 0
IV.NDIM.HNZ. 2020-08-01T19:49:31.21 3.0 undecidable manual S 0.61 0
IV.MBAL.EHZ. 2020-08-01T19:49:27.70 3.0 positive manual P -1.27 0
IV.PII.HHZ. 2020-08-01T19:49:21.11 3.0 negative manual P -0.17 0
IV.CSNT.HHZ. 2020-08-01T19:49:19.33 3.0 undecidable manual P 0.52 0
IV.PARC.HHZ. 2020-08-01T19:49:16.98 3.0 undecidable manual P -0.33 0
IV.CRMI.HHZ. 2020-08-01T19:49:16.43 3.0 positive manual P 0.7 0
IV.SEI.HHZ. 2020-08-01T19:49:14.67 0.3 undecidable manual S 219 0.3714 121 -0.1 71
IV.MPPT.EHZ. 2020-08-01T19:49:14.22 3.0 positive manual P 1.62 0
IV.LMD.HHZ. 2020-08-01T19:49:12.24 0.6 undecidable manual S 176 0.2671 131 -0.02 49
IV.ASQU.HHZ. 2020-08-01T19:49:12.07 3.0 undecidable manual P -0.25 0
IV.VISG.HHZ. 2020-08-01T19:49:11.20 0.3 undecidable manual S 229 0.2356 135 -0.38 69
IV.RUFI.EHZ. 2020-08-01T19:49:11.39 3.0 positive manual P -0.13 0
IV.MTRZ.HHZ. 2020-08-01T19:49:11.03 0.6 undecidable manual S 261 0.1871 142 0.41 46
IV.RINC.HHZ. 2020-08-01T19:49:10.25 0.3 undecidable manual P 187 0.4605 115 0.42 65
IV.MOCL.EHZ. 2020-08-01T19:49:10.68 0.3 negative manual P 227 0.4937 113 0.32 66
IV.FNVD.HHZ. 2020-08-01T19:49:09.44 0.1 negative manual P 246 0.4371 116 -0.04 94
IV.IMOL.EHZ. 2020-08-01T19:49:09.08 0.1 undecidable manual S 70 0.0459 169 0.21 98
IV.RONT.HHZ. 2020-08-01T19:49:09.21 0.6 negative manual P 207 0.393 119 0.41 44
IV.SFI.EHZ. 2020-08-01T19:49:09.90 0.6 undecidable manual P 165 0.4542 115 0.16 46
IV.SEI.HHZ. 2020-08-01T19:49:08.34 0.3 positive manual P 219 0.3714 121 -0.13 70
IV.FIU.EHZ. 2020-08-01T19:49:07.92 0.6 undecidable manual P 335 0.3265 125 0.09 48
IV.BRSN.EHE. 2020-08-01T19:49:07.32 0.6 undecidable manual P 102 0.2905 128 -0.02 48
IV.MTRZ.HHZ. 2020-08-01T19:49:06.13 0.1 positive manual P 261 0.1871 142 0.05 99
IV.LMD.HHZ. 2020-08-01T19:49:06.93 0.1 positive manual P 176 0.2671 131 -0.1 96
IV.VISG.HHZ. 2020-08-01T19:49:05.93 0.1 positive manual P 229 0.2356 135 -0.71 82
IV.IMOL.EHZ. 2020-08-01T19:49:04.99 0.1 positive manual P 70 0.0459 169 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IMOL.HNE. ML:2.5 0.001535 0.42 AML other m 2020-08-01T19:49:09.63
IV.IMOL.HNN. ML:2.8 0.002955 0.28 AML other m 2020-08-01T19:49:09.63
IV.VISG.HHE. ML:2.2 0.0006865 1.3 AML other m 2020-08-01T19:49:11.10
IV.VISG.HHN. ML:2.3 0.000807 0.14 AML other m 2020-08-01T19:49:11.95
IV.MTRZ.HHE. ML:2.3 0.0007935 0.4 AML other m 2020-08-01T19:49:13.47
IV.LMD.HHN. ML:2 0.00031 0.18 AML other m 2020-08-01T19:49:13.62
IV.LMD.HHE. ML:1.8 0.0001995 0.5 AML other m 2020-08-01T19:49:13.97
IV.MTRZ.HHN. ML:2.2 0.000607 0.5 AML other m 2020-08-01T19:49:14.54
IV.SEI.HHN. ML:2.5 0.0009285 0.84 AML other m 2020-08-01T19:49:15.07
IV.RONT.HHN. ML:2.4 0.0005945 1.2 AML other m 2020-08-01T19:49:16.17
IV.FNVD.HHN. ML:1.9 0.0001875 0.36 AML other m 2020-08-01T19:49:17.19
IV.SEI.HHE. ML:2.4 0.0006255 0.5 AML other m 2020-08-01T19:49:17.53
IV.FNVD.HHE. ML:1.9 0.0001685 0.54 AML other m 2020-08-01T19:49:17.78
IV.FIU.EHN. ML:2.2 0.0004635 0.34 AML other m 2020-08-01T19:49:18.02
IV.RONT.HHE. ML:2.4 0.000571 0.76 AML other m 2020-08-01T19:49:18.08
IV.MOCL.EHN. ML:1.8 0.000131 0.6 AML other m 2020-08-01T19:49:19.23
IV.SFI.EHE. ML:1.6 8.63E-5 1.22 AML other m 2020-08-01T19:49:19.95
IV.SFI.EHN. ML:1.7 0.00011015 0.68 AML other m 2020-08-01T19:49:19.51
IV.RINC.HHE. ML:2 0.0002325 0.32 AML other m 2020-08-01T19:49:19.83
IV.MOCL.EHE. ML:1.8 0.000133 0.46 AML other m 2020-08-01T19:49:19.75
IV.RINC.HHN. ML:1.9 0.000183 0.36 AML other m 2020-08-01T19:49:20.43
IV.RUFI.EHE. ML:1.7 9.505E-5 0.9 AML other m 2020-08-01T19:49:23.56
IV.RUFI.EHN. ML:1.7 8.405E-5 0.7 AML other m 2020-08-01T19:49:23.51
IV.ASQU.HHN. ML:1.7 9.485E-5 0.62 AML other m 2020-08-01T19:49:24.18
IV.MPPT.EHE. ML:1.7 8.88E-5 0.54 AML other m 2020-08-01T19:49:25.66
IV.MPPT.EHN. ML:1.6 7.435E-5 0.46 AML other m 2020-08-01T19:49:26.07
IV.FIU.EHE. ML:2.1 0.000401 1.52 AML other m 2020-08-01T19:49:27.18
IV.CRMI.HHE. ML:1.4 3.095E-5 0.62 AML other m 2020-08-01T19:49:29.50
IV.ASQU.HHE. ML:1.7 9.56E-5 0.24 AML other m 2020-08-01T19:49:30.01
IV.CRMI.HHN. ML:1.3 2.65E-5 0.88 AML other m 2020-08-01T19:49:30.77
IV.CSNT.HHN. ML:1.8 6.04E-5 0.6 AML other m 2020-08-01T19:49:35.65
IV.PARC.HHN. ML:1.5 3.73E-5 0.82 AML other m 2020-08-01T19:49:36.66
IV.PII.HHN. ML:2.3 0.000145 0.34 AML other m 2020-08-01T19:49:36.91
IV.PII.HHE. ML:2 8.135E-5 0.42 AML other m 2020-08-01T19:49:36.93
IV.NDIM.HHE. ML:2.7 0.000558 0.44 AML other m 2020-08-01T19:49:37.02
IV.PARC.HHE. ML:1.5 3.41E-5 0.54 AML other m 2020-08-01T19:49:38.32
IV.CSNT.HHE. ML:1.7 4.27E-5 0.66 AML other m 2020-08-01T19:49:38.97
IV.NDIM.HHN. ML:2.4 0.0003165 0.14 AML other m 2020-08-01T19:49:40.27
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download