Earthquake with magnitude of ML 0.9 on date 30-03-2020 and time 02:28:47 (UTC) in region 7 km NW Borgo Tossignano (BO)

A magnitude ML 0.9 earthquake occured in region: 7 km NW Borgo Tossignano (BO), on

  • 30-03-2020 02:28:47 (UTC)
  • 30-03-2020 04:28:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.33, 11.54 at 25 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
Borgo Tossignano BO 7 3288 3288
Casalfiumanese BO 7 3438 6726
Fontanelice BO 8 1943 8669
Dozza BO 8 6652 15321
Castel San Pietro Terme BO 9 20811 36132
Monterenzio BO 10 6035 42167
Castel del Rio BO 13 1246 43413
Casola Valsenio RA 14 2617 46030
Ozzano dell'Emilia BO 14 13596 59626
Imola BO 15 69797 129423
Riolo Terme RA 16 5720 135143
Castel Guelfo di Bologna BO 17 4455 139598
Pianoro BO 17 17460 157058
Loiano BO 18 4294 161352
Medicina BO 19 16739 178091
San Lazzaro di Savena BO 19 32065 210156

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km W of Imola (69797 inhabitants)
24 Km SE of Bologna (386663 inhabitants)
28 Km W of Faenza (58541 inhabitants)
42 Km W of Forlì (117913 inhabitants)
54 Km W of Ravenna (159116 inhabitants)
57 Km S of Ferrara (133155 inhabitants)
60 Km SE of Modena (184973 inhabitants)
60 Km W of Cesena (96758 inhabitants)
61 Km NE of Prato (191150 inhabitants)
66 Km NE of Firenze (382808 inhabitants)
66 Km NE of Pistoia (90315 inhabitants)
69 Km NE of Scandicci (50609 inhabitants)
72 Km SE of Carpi (70699 inhabitants)
83 Km E of Reggio nell'Emilia (171345 inhabitants)
85 Km S of Rovigo (51867 inhabitants)
87 Km W of Rimini (147750 inhabitants)
98 Km NE of Lucca (89046 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 2020-03-30
02:28:47
44.33 11.53 25 2020-03-30
02:40:23
Sala Sismica INGV-Roma 77688381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-30 02:28:47 ± 0.45
Latitude 44.33 ± 0.01
Longitude 11.53 ± 0.02
Depth (km) 25 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77688381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1288
Semi-minor axis of confidence ellipse (meter) 778
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 182
Circular confidence region, given by single value of horizontal uncertainty (meter) 1290
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.08004
Epicentral distance of station farthest from the epicenter (degree) 0.56118
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:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 77688381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-30 02:40:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ASQU.HHN. 2020-03-30T02:29:07.60 0.3 undecidable manual S 161 0.5612 106 0.6 60
IV.SFI.HNE. 2020-03-30T02:29:04.95 0.3 undecidable manual S 152 0.4775 109 0.3 67
IV.RINC.HHZ. 2020-03-30T02:29:03.75 0.3 undecidable manual S 173 0.4434 111 0.06 71
IV.RONT.HHE. 2020-03-30T02:29:01.21 0.3 undecidable manual S 192 0.3417 117 0.29 70
IV.SEI.HHZ. 2020-03-30T02:28:59.80 0.3 undecidable manual S 205 0.3004 121 -0.07 73
IV.ASQU.HHN. 2020-03-30T02:28:58.87 0.3 undecidable manual P 161 0.5612 106 0.16 68
IV.RINC.HHZ. 2020-03-30T02:28:57.12 0.3 undecidable manual P 173 0.4434 111 0.32 67
IV.SFI.HNE. 2020-03-30T02:28:57.14 0.3 undecidable manual P 152 0.4775 109 -0.22 69
IV.IMOL.EHZ. 2020-03-30T02:28:57.26 0.3 undecidable manual S 78 0.152 142 0.72 62
IV.MTRZ.HHZ. 2020-03-30T02:28:56.61 0.3 undecidable manual S 260 0.08 158 1.14 54
IV.BRIS.HHZ. 2020-03-30T02:28:56.47 0.3 undecidable manual S 122 0.1952 135 -0.91 59
IV.RONT.HHE. 2020-03-30T02:28:55.39 0.3 undecidable manual P 192 0.3417 117 0.19 71
IV.VISG.HHZ. 2020-03-30T02:28:55.99 0.1 undecidable manual S 208 0.1556 142 -0.61 86
IV.SEI.HHZ. 2020-03-30T02:28:54.43 0.1 undecidable manual P 205 0.3004 121 -0.16 96
IV.VISG.HHZ. 2020-03-30T02:28:52.20 0.1 undecidable manual P 208 0.1556 142 -0.51 91
IV.IMOL.EHZ. 2020-03-30T02:28:52.32 0.6 undecidable manual P 78 0.152 142 -0.35 48
IV.MTRZ.HHZ. 2020-03-30T02:28:52.24 0.1 undecidable manual P 260 0.08 158 0.18 100
IV.BRIS.HHZ. 2020-03-30T02:28:52.68 0.1 undecidable manual P 122 0.1952 135 -0.48 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRZ.HHE. ML:0.8 3.875E-5 0.18 AML other m 2020-03-30T02:28:57.55
IV.MTRZ.HHN. ML:1.1 6.765E-5 0.92 AML other m 2020-03-30T02:28:57.72
IV.SEI.HHN. ML:1.2 5.375E-5 0.42 AML other m 2020-03-30T02:29:00.52
IV.SEI.HHE. ML:1 3.275E-5 0.4 AML other m 2020-03-30T02:29:00.52
IV.VISG.HHE. ML:0.8 3.48495335E-5 0.16 AML other m 2020-03-30T02:28:56.82
IV.VISG.HHN. ML:0.7 2.59449025E-5 0.1184 AML other m 2020-03-30T02:28:57.14
IV.BRIS.HHE. ML:0.7 2.27924455E-5 0.3984 AML other m 2020-03-30T02:28:56.90
IV.BRIS.HHN. ML:0.6 2.0716583E-5 0.3408 AML other m 2020-03-30T02:28:56.89
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