Earthquake with magnitude of ML 0.9 on date 02-04-2020 and time 12:34:52 (Italy) in region 2 km E Dozza (BO)

A magnitude ML 0.9 earthquake occured in region: 2 km E Dozza (BO), on

  • 02-04-2020 10:34:52 (UTC)
  • 02-04-2020 12:34:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.35, 11.66 at 11 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
Dozza BO 3 6652 6652
Imola BO 5 69797 76449
Casalfiumanese BO 7 3438 79887
Castel San Pietro Terme BO 8 20811 100698
Castel Guelfo di Bologna BO 9 4455 105153
Borgo Tossignano BO 10 3288 108441
Riolo Terme RA 10 5720 114161
Castel Bolognese RA 12 9554 123715
Fontanelice BO 13 1943 125658
Mordano BO 13 4760 130418
Medicina BO 14 16739 147157
Bagnara di Romagna RA 14 2429 149586
Casola Valsenio RA 14 2617 152203
Solarolo RA 15 4488 156691
Brisighella RA 17 7639 164330
Massa Lombarda RA 17 10653 174983
Ozzano dell'Emilia BO 18 13596 188579
Sant'Agata sul Santerno RA 19 2862 191441
Faenza RA 19 58541 249982
Castel del Rio BO 20 1246 251228

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km W of Imola (69797 inhabitants)
19 Km W of Faenza (58541 inhabitants)
30 Km SE of Bologna (386663 inhabitants)
34 Km W of Forlì (117913 inhabitants)
44 Km W of Ravenna (159116 inhabitants)
52 Km W of Cesena (96758 inhabitants)
54 Km S of Ferrara (133155 inhabitants)
67 Km E of Modena (184973 inhabitants)
69 Km NE of Prato (191150 inhabitants)
72 Km NE of Firenze (382808 inhabitants)
75 Km NE of Pistoia (90315 inhabitants)
76 Km NE of Scandicci (50609 inhabitants)
78 Km SE of Carpi (70699 inhabitants)
79 Km W of Rimini (147750 inhabitants)
81 Km S of Rovigo (51867 inhabitants)
90 Km E of Reggio nell'Emilia (171345 inhabitants)
100 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
Rev 100 ML 0.9 2020-04-02
10:34:52
44.35 11.66 11 2020-04-02
10:42:57
Sala Sismica INGV-Roma 77785731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-02 10:34:52 ± 1.46
Latitude 44.35 ± 0.06
Longitude 11.66 ± 0.08
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77785731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 8270
Semi-minor axis of confidence ellipse (meter) 3960
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 38
Circular confidence region, given by single value of horizontal uncertainty (meter) 8270
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 276
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.27609
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 3
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 77785731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-02 10:42:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CRAC.EHZ. 2020-04-02T10:36:08.05 3.0 negative manual Pn -0.78 0
IV.CERT.HHZ. 2020-04-02T10:36:07.72 3.0 undecidable manual Sg 1.14 0
CR.STON.BHZ. 2020-04-02T10:35:59.86 3.0 undecidable manual Pn 1.11 0
IV.LAV9.HHZ. 2020-04-02T10:35:36.96 3.0 negative manual Pg 3.68 0
IV.PE3.EHZ. 2020-04-02T10:35:26.31 3.0 undecidable manual Sg -0.05 0
MN.TRI.HHZ. 2020-04-02T10:35:18.57 3.0 negative manual Pn 0.4 0
IV.LMD.HHZ. 2020-04-02T10:35:04.16 0.6 undecidable manual S 173 0.2761 50 0.75 52
IV.VISG.HHZ. 2020-04-02T10:35:01.46 0.6 undecidable manual S 225 0.2275 50 -0.52 58
IV.MTRZ.HHZ. 2020-04-02T10:35:01.66 0.6 undecidable manual S 257 0.1709 50 1.36 40
IV.LMD.HHZ. 2020-04-02T10:34:59.15 1.0 positive manual P 173 0.2761 50 0.24 30
IV.ZCCA.HHZ. 2020-04-02T10:34:57.46 3.0 negative manual P 1.43 0
IV.VISG.HHZ. 2020-04-02T10:34:57.21 0.1 negative manual P 225 0.2275 50 -0.87 100
IV.BRIS.HHZ. 2020-04-02T10:34:57.58 3.0 undecidable manual P -1.22 0
IV.MTRZ.HHZ. 2020-04-02T10:34:57.29 0.3 positive manual P 257 0.1709 50 0.18 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VISG.HHN. ML:1 5.305E-5 0.28 AML other m 2020-04-02T10:35:01.64
IV.VISG.HHE. ML:0.9 4.395E-5 0.42 AML other m 2020-04-02T10:35:02.51
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