Earthquake with magnitude of ML 0.9 on date 12-09-2019 and time 05:00:04 (Italy) in region 5 km SE Sasso Marconi (BO)

A magnitude ML 0.9 earthquake occured in region: 5 km SE Sasso Marconi (BO), on

  • 12-09-2019 03:00:04 (UTC)
  • 12-09-2019 05:00:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.36, 11.28 at 10 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
Sasso Marconi BO 5 14735 14735
Marzabotto BO 6 6779 21514
Pianoro BO 6 17460 38974
Monzuno BO 9 6328 45302
Loiano BO 10 4294 49596
Monterenzio BO 11 6035 55631
Monte San Pietro BO 13 10982 66613
Casalecchio di Reno BO 14 36327 102940
Grizzana Morandi BO 15 3916 106856
Vergato BO 15 7639 114495
Zola Predosa BO 16 18770 133265
Monghidoro BO 16 3749 137014
Bologna BO 16 386663 523677
San Benedetto Val di Sambro BO 16 4315 527992
San Lazzaro di Savena BO 16 32065 560057
Ozzano dell'Emilia BO 19 13596 573653

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km SW of Bologna (386663 inhabitants)
35 Km W of Imola (69797 inhabitants)
42 Km SE of Modena (184973 inhabitants)
49 Km W of Faenza (58541 inhabitants)
55 Km N of Prato (191150 inhabitants)
55 Km NE of Pistoia (90315 inhabitants)
57 Km SE of Carpi (70699 inhabitants)
60 Km SW of Ferrara (133155 inhabitants)
63 Km W of Forlì (117913 inhabitants)
64 Km SE of Reggio nell'Emilia (171345 inhabitants)
66 Km N of Firenze (382808 inhabitants)
67 Km N of Scandicci (50609 inhabitants)
74 Km W of Ravenna (159116 inhabitants)
81 Km W of Cesena (96758 inhabitants)
84 Km NE of Lucca (89046 inhabitants)
89 Km SW of Rovigo (51867 inhabitants)
90 Km SE of Parma (192836 inhabitants)
97 Km E of Massa (69479 inhabitants)
99 Km NE of Viareggio (62467 inhabitants)
99 Km E of Carrara (63133 inhabitants)
100 Km NE of Pisa (89158 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 2019-09-12
03:00:04
44.36 11.28 10 2019-09-12
04:02:57
Sala Sismica INGV-Roma 72329921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-12 03:00:04 ± 1.1
Latitude 44.36 ± 0.02
Longitude 11.28 ± 0.08
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72329921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 6650
Semi-minor axis of confidence ellipse (meter) 1820
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 6650
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 256
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.57
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41639
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 3
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0
Num. used stations 2
Type of magnitude ML
Reference to an origin 72329921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-12 04:02:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MESG.HHZ. 2019-09-12T03:01:45.58 3.0 undecidable manual Pg 16.57 0
IV.VCEL.EHZ. 2019-09-12T03:01:23.10 3.0 undecidable manual Sg 9.7 0
IV.COLB.HHZ. 2019-09-12T03:01:14.21 3.0 negative manual Pg 11.22 0
GU.BLANC.HHZ. 2019-09-12T03:01:00.79 3.0 undecidable manual Pn 3.53 0
IV.POFI.HNZ. 2019-09-12T03:00:57.38 3.0 undecidable manual Pg 7.44 0
IV.SNTG.HHZ. 2019-09-12T03:00:45.92 3.0 undecidable manual Sn -1.05 0
GU.GRAM.HHZ. 2019-09-12T03:00:37.01 3.0 undecidable manual Sn -2.2 0
IV.MBAL.EHZ. 2019-09-12T03:00:24.58 3.0 positive manual Pn -1.2 0
IV.PII.HHZ. 2019-09-12T03:00:22.52 3.0 negative manual P -0.45 0
IV.LMD.HHZ. 2019-09-12T03:00:19.75 0.1 undecidable manual S 132 0.4164 50 0.69 88
IV.BRIS.HHZ. 2019-09-12T03:00:17.33 0.1 undecidable manual S 111 0.3741 50 -0.47 97
IV.FIU.EHZ. 2019-09-12T03:00:16.55 0.1 undecidable manual S 28 0.3193 50 0.37 100
IV.LMD.HHZ. 2019-09-12T03:00:12.56 0.6 undecidable manual P 132 0.4164 50 -0.14 52
IV.BRIS.HHZ. 2019-09-12T03:00:11.06 1.0 undecidable manual P 111 0.3741 50 -0.91 20
IV.FIU.EHZ. 2019-09-12T03:00:10.45 0.6 undecidable manual P 28 0.3193 50 -0.58 47
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIU.EHN. ML:2 0.000409 0.22 AML other m 2019-09-12T03:00:16.90
IV.FIU.EHE. ML:1.9 0.000288 0.9 AML other m 2019-09-12T03:00:17.14
IV.LMD.HHN. ML:0.9 2.415E-5 0.56 AML other m 2019-09-12T03:00:20.59
IV.LMD.HHE. ML:0.9 2.48E-5 0.5 AML other m 2019-09-12T03:00:20.60
IV.POFI.HNE. ML:4.1 0.0009775 0.72 AML other m 2019-09-12T03:01:02.31
IV.POFI.HNN. ML:4.1 0.0010915 1.22 AML other m 2019-09-12T03:01:02.31
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