Earthquake with magnitude of ML 1.9 on date 24-03-2020 and time 11:20:17 (Italy) in region 4 km W Dozza (BO)

A magnitude ML 1.9 earthquake occured in region: 4 km W Dozza (BO), on

  • 24-03-2020 10:20:17 (UTC)
  • 24-03-2020 11:20:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.35, 11.58 at 26 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 4 6652 6652
Castel San Pietro Terme BO 6 20811 27463
Casalfiumanese BO 7 3438 30901
Borgo Tossignano BO 8 3288 34189
Fontanelice BO 10 1943 36132
Imola BO 11 69797 105929
Castel Guelfo di Bologna BO 12 4455 110384
Ozzano dell'Emilia BO 13 13596 123980
Riolo Terme RA 14 5720 129700
Monterenzio BO 14 6035 135735
Casola Valsenio RA 14 2617 138352
Medicina BO 15 16739 155091
Castel del Rio BO 16 1246 156337
Castel Bolognese RA 18 9554 165891
Mordano BO 19 4760 170651
San Lazzaro di Savena BO 19 32065 202716
Pianoro BO 19 17460 220176
Castenaso BO 20 14925 235101

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km W of Imola (69797 inhabitants)
25 Km SE of Bologna (386663 inhabitants)
25 Km W of Faenza (58541 inhabitants)
39 Km W of Forlì (117913 inhabitants)
50 Km W of Ravenna (159116 inhabitants)
54 Km S of Ferrara (133155 inhabitants)
58 Km W of Cesena (96758 inhabitants)
61 Km SE of Modena (184973 inhabitants)
65 Km NE of Prato (191150 inhabitants)
70 Km NE of Firenze (382808 inhabitants)
70 Km NE of Pistoia (90315 inhabitants)
73 Km NE of Scandicci (50609 inhabitants)
73 Km SE of Carpi (70699 inhabitants)
82 Km S of Rovigo (51867 inhabitants)
85 Km E of Reggio nell'Emilia (171345 inhabitants)
85 Km W of Rimini (147750 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 1.9 2020-03-24
10:20:17
44.35 11.58 26 2020-03-24
10:37:14
Sala Sismica INGV-Roma 77528811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-24 10:20:17 ± 0.4
Latitude 44.35 ± 0.02
Longitude 11.58 ± 0.03
Depth (km) 26 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77528811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2620
Semi-minor axis of confidence ellipse (meter) 993
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 248
Circular confidence region, given by single value of horizontal uncertainty (meter) 2620
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 242
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.11691
Epicentral distance of station farthest from the epicenter (degree) 0.51441
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 77528811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-24 10:37:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RINC.HHZ. 2020-03-24T10:20:34.67 0.3 undecidable manual S 178 0.4641 110 0.33 68
IV.SEI.HHZ. 2020-03-24T10:20:30.31 0.3 undecidable manual S 208 0.3354 118 -0.56 65
IV.LMD.HHZ. 2020-03-24T10:20:29.79 0.6 undecidable manual S 162 0.2878 123 0.16 49
IV.RUFI.EHZ. 2020-03-24T10:20:28.02 0.1 undecidable manual P 186 0.5144 108 -0.01 96
IV.SFI.HNZ. 2020-03-24T10:20:27.79 0.1 undecidable manual P 157 0.4847 109 0.25 91
IV.BRIS.HHZ. 2020-03-24T10:20:27.22 0.3 undecidable manual S 133 0.1835 137 -0.02 77
IV.RINC.HHZ. 2020-03-24T10:20:27.35 0.1 undecidable manual P 178 0.4641 110 0.14 94
IV.MTRZ.HHZ. 2020-03-24T10:20:26.72 0.3 undecidable manual S 251 0.1169 150 0.65 67
IV.SEI.HHZ. 2020-03-24T10:20:25.13 0.3 undecidable manual P 208 0.3354 118 -0.07 73
IV.RONT.HHZ. 2020-03-24T10:20:25.86 0.6 undecidable manual P 197 0.3714 115 0.11 48
IV.BRIS.HHZ. 2020-03-24T10:20:23.18 0.1 undecidable manual P 133 0.1835 137 0.07 100
IV.LMD.HHZ. 2020-03-24T10:20:23.99 0.1 undecidable manual P 162 0.2878 123 -0.5 91
IV.VISG.HHZ. 2020-03-24T10:20:22.44 0.1 undecidable manual P 213 0.1925 135 -0.77 83
IV.MTRZ.HHZ. 2020-03-24T10:20:22.71 0.1 undecidable manual P 251 0.1169 150 0.28 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VISG.HHE. ML:1.8 0.0002655 0.12 AML other m 2020-03-24T10:20:27.08
IV.VISG.HHN. ML:1.9 0.000378 1.1 AML other m 2020-03-24T10:20:27.16
IV.MTRZ.HHE. ML:1.8 0.0003525 1.82 AML other m 2020-03-24T10:20:28.92
IV.MTRZ.HHN. ML:2 0.0005405 0.24 AML other m 2020-03-24T10:20:28.18
IV.LMD.HHE. ML:1.8 0.0001975 0.38 AML other m 2020-03-24T10:20:29.92
IV.LMD.HHN. ML:1.8 0.000244 1.74 AML other m 2020-03-24T10:20:30.88
IV.SEI.HHN. ML:2.4 0.0007615 1.66 AML other m 2020-03-24T10:20:31.83
IV.SEI.HHE. ML:1.9 0.000264 1.54 AML other m 2020-03-24T10:20:33.80
IV.RONT.HHE. ML:2.1 0.000319 0.5 AML other m 2020-03-24T10:20:35.07
IV.RONT.HHN. ML:1.9 0.000244 0.38 AML other m 2020-03-24T10:20:35.52
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