Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 08-09-2021 and time 01:33:29 (Italy) in region 3 km SW Lizzano in Belvedere (BO)

A magnitude ML 1.3 earthquake occured in region: 3 km SW Lizzano in Belvedere (BO), on

  • 07-09-2021 23:33:29 (UTC)
  • 08-09-2021 01:33:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1420, 10.8640 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.

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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 3 2212 2212
Gaggio Montano BO 9 4878 7090
Fanano MO 9 2989 10079
Alto Reno Terme BO 9 6960 17039
Cutigliano PT 10 1488 18527
San Marcello Pistoiese PT 11 6416 24943
Sambuca Pistoiese PT 12 1626 26569
Sestola MO 12 2508 29077
Castel di Casio BO 14 3448 32525
Piteglio PT 15 1683 34208
Montese MO 15 3353 37561
Abetone PT 16 621 38182
Montecreto MO 17 940 39122
Fiumalbo MO 18 1280 40402
Camugnano BO 18 1885 42287
Castel d'Aiano BO 19 1906 44193
Riolunato MO 20 712 44905

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km N of Pistoia (90315 inhabitants)
35 Km NW of Prato (191150 inhabitants)
44 Km NE of Lucca (89046 inhabitants)
50 Km NW of Scandicci (50609 inhabitants)
52 Km NW of Firenze (382808 inhabitants)
55 Km SW of Bologna (386663 inhabitants)
56 Km S of Modena (184973 inhabitants)
58 Km NE of Viareggio (62467 inhabitants)
59 Km E of Massa (69479 inhabitants)
60 Km NE of Pisa (89158 inhabitants)
62 Km E of Carrara (63133 inhabitants)
65 Km SE of Reggio nell'Emilia (171345 inhabitants)
71 Km S of Carpi (70699 inhabitants)
72 Km W of Imola (69797 inhabitants)
79 Km NE of Livorno (159219 inhabitants)
83 Km E of La Spezia (93959 inhabitants)
83 Km W of Faenza (58541 inhabitants)
85 Km SE of Parma (192836 inhabitants)
94 Km W of Forlì (117913 inhabitants)
98 Km SW of Ferrara (133155 inhabitants)
99 Km NW of Siena (53903 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.3 2021-09-07
23:33:29		 44.1423 10.8642 10 2021-09-07
23:45:14		 Sala Sismica INGV-Roma 95172681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-07 23:33:29 ± 0.1
Latitude 44.1423 ± 0.0063
Longitude 10.8642 ± 0.0050
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95172681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 675
Semi-minor axis of confidence ellipse (meter) 60
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 172
Circular confidence region, given by single value of horizontal uncertainty (meter) 670.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.35613
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 95172681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-07 23:45:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.APEC.HHZ. 2021-09-07T23:34:13.85 3.0 undecidable manual S 2.47 0
IV.MNTV.EHZ. 2021-09-07T23:33:51.02 3.0 negative manual P 0.73 0
IV.CRMI.HHZ. 2021-09-07T23:33:43.02 0.3 undecidable manual S 166 39.5271 50 0.09 72
GU.MAIM.HHZ. 2021-09-07T23:33:42.57 0.3 undecidable manual S 230 39.1275 50 -0.24 70
GU.GSCL.HHZ. 2021-09-07T23:33:40.97 0.3 undecidable manual S 317 31.8459 50 0.09 73
GU.CARD.HHZ. 2021-09-07T23:33:40.65 0.3 undecidable manual S 247 33.0447 50 -0.55 66
IV.MOCL.EHZ. 2021-09-07T23:33:39.98 0.3 undecidable manual S 121 29.4483 50 -0.27 71
IV.PII.HHZ. 2021-09-07T23:33:39.42 3.0 positive manual P -0.11 0
IV.BDI.HHZ. 2021-09-07T23:33:38.15 0.1 undecidable manual S 248 23.1546 114 -0.4 93
IV.FNVD.HHZ. 2021-09-07T23:33:37.61 0.3 undecidable manual S 82 20.7681 116 -0.2 73
GU.MAIM.HHZ. 2021-09-07T23:33:37.70 0.3 undecidable manual P 230 39.1275 50 0.41 68
IV.CRMI.HHZ. 2021-09-07T23:33:37.65 0.3 undecidable manual P 166 39.5271 50 0.29 70
IV.SEI.HHZ. 2021-09-07T23:33:37.37 3.0 undecidable manual P -0.32 0
GU.GSCL.HHZ. 2021-09-07T23:33:36.30 0.1 undecidable manual P 317 31.8459 50 0.12 97
GU.CARD.HHZ. 2021-09-07T23:33:36.78 0.3 undecidable manual P 247 33.0447 50 0.42 68
IV.MOCL.EHZ. 2021-09-07T23:33:35.76 0.6 negative manual P 121 29.4483 50 -0.05 50
GU.POPM.HHZ. 2021-09-07T23:33:35.94 0.1 undecidable manual S 218 13.7751 127 0.21 99
IV.ZCCA.HHZ. 2021-09-07T23:33:35.93 3.0 positive manual P 0.19 0
IV.MPPT.EHZ. 2021-09-07T23:33:35.55 3.0 undecidable manual P 0.4 0
IV.FNVD.HHZ. 2021-09-07T23:33:34.32 0.1 undecidable manual P 82 20.7681 116 -0.08 100
IV.BDI.HHZ. 2021-09-07T23:33:34.68 0.3 negative manual P 248 23.1546 114 -0.15 74
GU.POPM.HHZ. 2021-09-07T23:33:33.42 0.1 undecidable manual P 218 13.7751 127 0.22 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.POPM.HHN. ML:2.1 0.0012349999999999998 0.18 AML other m 2021-09-07T23:33:36.09
GU.POPM.HHE. ML:1.9 0.0008475 0.12 AML other m 2021-09-07T23:33:36.46
IV.FNVD.HHE. ML:1.3 0.000144 0.34 AML other m 2021-09-07T23:33:38.14
IV.BDI.HHN. ML:1.6 0.000264 0.12 AML other m 2021-09-07T23:33:38.34
IV.BDI.HHE. ML:1.5 0.0001835 1.18 AML other m 2021-09-07T23:33:38.37
IV.FNVD.HHN. ML:1.4 0.0001725 0.32 AML other m 2021-09-07T23:33:38.76
IV.MPPT.EHE. ML:1.2 0.00007944999999999999 0.34 AML other m 2021-09-07T23:33:39.99
IV.MPPT.EHN. ML:1.1 0.000072 0.34 AML other m 2021-09-07T23:33:40.08
GU.CARD.HHN. ML:1.5 0.00014600000000000003 1.28 AML other m 2021-09-07T23:33:40.35
GU.GSCL.HHE. ML:1.1 0.00005685 0.38 AML other m 2021-09-07T23:33:41.55
GU.CARD.HHE. ML:1.4 0.00011355000000000001 0.7 AML other m 2021-09-07T23:33:41.30
GU.GSCL.HHN. ML:1.5 0.0001515 0.18 AML other m 2021-09-07T23:33:41.65
IV.ZCCA.HHN. ML:1.2 0.00008340000000000001 0.32 AML other m 2021-09-07T23:33:42.52
IV.ZCCA.HHE. ML:1.4 0.000157 0.34 AML other m 2021-09-07T23:33:42.67
GU.MAIM.HHN. ML:1.2 0.00005065 0.58 AML other m 2021-09-07T23:33:43.31
GU.MAIM.HHE. ML:1.0 0.00003545 0.24 AML other m 2021-09-07T23:33:43.14
IV.CRMI.HHN. ML:0.8 0.00002145 1.34 AML other m 2021-09-07T23:33:43.24
IV.CRMI.HHE. ML:0.8 0.0000178 1.36 AML other m 2021-09-07T23:33:43.94
IV.PII.HHE. ML:1.4 0.00006659999999999999 1.72 AML other m 2021-09-07T23:33:48.97
IV.PII.HHN. ML:1.4 0.00005595 0.42 AML other m 2021-09-07T23:33:49.80
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