Earthquake with magnitude of ML 1.1 on date 07-09-2021 and time 13:40:55 (Italy) in region 4 km SW Lizzano in Belvedere (BO)

A magnitude ML 1.1 earthquake occured in region: 4 km SW Lizzano in Belvedere (BO), on

  • 07-09-2021 11:40:55 (UTC)
  • 07-09-2021 13:40:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.132, 10.869 at 12 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
Lizzano in Belvedere BO 4 2212 2212
Alto Reno Terme BO 9 6960 9172
Gaggio Montano BO 9 4878 14050
Cutigliano PT 10 1488 15538
San Marcello Pistoiese PT 10 6416 21954
Fanano MO 10 2989 24943
Sambuca Pistoiese PT 11 1626 26569
Sestola MO 14 2508 29077
Castel di Casio BO 14 3448 32525
Piteglio PT 14 1683 34208
Abetone PT 16 621 34829
Montese MO 16 3353 38182
Montecreto MO 18 940 39122
Camugnano BO 18 1885 41007
Fiumalbo MO 18 1280 42287
Castel d'Aiano BO 20 1906 44193

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km N of Pistoia (90315 inhabitants)
33 Km NW of Prato (191150 inhabitants)
43 Km NE of Lucca (89046 inhabitants)
48 Km NW of Scandicci (50609 inhabitants)
51 Km NW of Firenze (382808 inhabitants)
55 Km SW of Bologna (386663 inhabitants)
58 Km S of Modena (184973 inhabitants)
58 Km NE of Viareggio (62467 inhabitants)
59 Km E of Massa (69479 inhabitants)
59 Km NE of Pisa (89158 inhabitants)
62 Km E of Carrara (63133 inhabitants)
66 Km SE of Reggio nell'Emilia (171345 inhabitants)
72 Km W of Imola (69797 inhabitants)
73 Km S of Carpi (70699 inhabitants)
78 Km NE of Livorno (159219 inhabitants)
83 Km W of Faenza (58541 inhabitants)
83 Km E of La Spezia (93959 inhabitants)
86 Km SE of Parma (192836 inhabitants)
94 Km W of Forlì (117913 inhabitants)
98 Km NW of Siena (53903 inhabitants)
99 Km SW of Ferrara (133155 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 1.1 2021-09-07
11:40:55
44.1318 10.8687 12 2021-09-07
11:50:59
Sala Sismica INGV-Roma 95155111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-07 11:40:55 ± 0.07
Latitude 44.1318 ± 0.0045
Longitude 10.8687 ± 0.0038
Depth (km) 12 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95155111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 478
Semi-minor axis of confidence ellipse (meter) 158
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 6
Circular confidence region, given by single value of horizontal uncertainty (meter) 480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.47844
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 95155111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-07 11:50:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MMN.HHZ. 2021-09-07T11:42:25.32 3.0 undecidable manual Pn 3.58 0
IV.MOCO.HHZ. 2021-09-07T11:42:09.66 3.0 undecidable manual Pg 8.77 0
GU.IMI.HHZ. 2021-09-07T11:42:01.06 3.0 undecidable manual Sn -0.2 0
CH.BERNI.HHZ. 2021-09-07T11:41:57.31 3.0 undecidable manual Sn -5.54 0
GU.RRL.HHZ. 2021-09-07T11:41:51.86 3.0 negative manual Pg 8.59 0
IV.ASQU.HHZ. 2021-09-07T11:41:24.29 3.0 undecidable manual S -0.8 0
IV.PII.HHZ. 2021-09-07T11:41:11.83 0.1 undecidable manual S 211 0.4784 92 -0.26 89
IV.SEI.HHZ. 2021-09-07T11:41:08.67 0.3 undecidable manual S 102 0.3597 93 0.08 71
IV.IMOL.HNZ. 2021-09-07T11:41:06.69 3.0 undecidable manual P -1.86 0
GU.GSCL.HHN. 2021-09-07T11:41:06.72 0.3 undecidable manual S 318 0.2968 94 0 72
IV.PII.HHZ. 2021-09-07T11:41:05.36 0.3 undecidable manual P 211 0.4784 92 0.3 67
IV.MPPT.EHZ. 2021-09-07T11:41:05.01 0.3 undecidable manual S 137 0.2356 96 0.09 73
IV.MOCL.EHZ. 2021-09-07T11:41:05.57 0.3 undecidable manual S 119 0.2572 95 0.01 74
IV.SEI.HHZ. 2021-09-07T11:41:03.01 0.6 positive manual P 102 0.3597 93 -0.03 48
IV.BDI.HNN. 2021-09-07T11:41:03.86 0.3 undecidable manual S 251 0.2077 97 -0.23 71
IV.CRMI.HHZ. 2021-09-07T11:41:03.80 3.0 positive manual P -1.17 0
IV.FNVD.HHN. 2021-09-07T11:41:03.05 0.3 undecidable manual S 79 0.1862 99 -0.4 69
GU.GSCL.HHN. 2021-09-07T11:41:02.24 0.3 undecidable manual P 318 0.2968 94 0.28 68
IV.MOCL.EHZ. 2021-09-07T11:41:01.39 0.1 undecidable manual P 119 0.2572 95 0.1 96
GU.POPM.HHZ. 2021-09-07T11:41:01.63 0.1 undecidable manual S 223 0.1178 116 0.1 100
IV.MPPT.EHZ. 2021-09-07T11:41:00.94 0.1 undecidable manual P 137 0.2356 96 0.02 99
IV.BDI.HNN. 2021-09-07T11:41:00.32 0.1 undecidable manual P 251 0.2077 97 -0.12 97
IV.FNVD.HHN. 2021-09-07T11:40:59.96 0.1 undecidable manual P 79 0.1862 99 -0.11 98
GU.POPM.HHZ. 2021-09-07T11:40:59.08 0.1 undecidable manual P 223 0.1178 116 0.12 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.POPM.HHN. ML:2 0.0009685 0.18 AML other m 2021-09-07T11:41:01.75
GU.POPM.HHE. ML:1.9 0.000755 0.12 AML other m 2021-09-07T11:41:02.12
IV.MPPT.EHN. ML:1 5.94E-5 0.32 AML other m 2021-09-07T11:41:05.69
IV.MPPT.EHE. ML:1.2 7.89E-5 1.08 AML other m 2021-09-07T11:41:05.43
IV.CRMI.HHE. ML:0.4 1.17E-5 0.42 AML other m 2021-09-07T11:41:08.97
IV.CRMI.HHN. ML:0.8 1.83E-5 1 AML other m 2021-09-07T11:41:11.23
IV.SEI.HHN. ML:1.2 4.84E-5 0.6 AML other m 2021-09-07T11:41:11.33
IV.IMOL.HNN. ML:3.1 0.001915 0.06 AML other m 2021-09-07T11:41:12.27
IV.IMOL.HNE. ML:3 0.00159 0.06 AML other m 2021-09-07T11:41:12.26
IV.PII.HHE. ML:1.4 6.49E-5 0.66 AML other m 2021-09-07T11:41:14.13
IV.SEI.HHE. ML:1 3.245E-5 0.38 AML other m 2021-09-07T11:41:14.46
IV.PII.HHN. ML:1.3 4.665E-5 0.24 AML other m 2021-09-07T11:41:14.69
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download