Earthquake with magnitude of ML 1.0 on date 07-09-2021 and time 05:37:51 (Italy) in region 4 km SW Lizzano in Belvedere (BO)

A magnitude ML 1.0 earthquake occured in region: 4 km SW Lizzano in Belvedere (BO), on

  • 07-09-2021 03:37:51 (UTC)
  • 07-09-2021 05:37:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.136, 10.863 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
Lizzano in Belvedere BO 4 2212 2212
Gaggio Montano BO 9 4878 7090
Cutigliano PT 9 1488 8578
Alto Reno Terme BO 9 6960 15538
Fanano MO 10 2989 18527
San Marcello Pistoiese PT 11 6416 24943
Sambuca Pistoiese PT 12 1626 26569
Sestola MO 13 2508 29077
Piteglio PT 14 1683 30760
Castel di Casio BO 14 3448 34208
Abetone PT 16 621 34829
Montese MO 16 3353 38182
Montecreto MO 17 940 39122
Fiumalbo MO 18 1280 40402
Camugnano BO 18 1885 42287
Castel d'Aiano BO 20 1906 44193
Riolunato MO 20 712 44905

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km N of Pistoia (90315 inhabitants)
34 Km NW of Prato (191150 inhabitants)
43 Km NE of Lucca (89046 inhabitants)
49 Km NW of Scandicci (50609 inhabitants)
52 Km NW of Firenze (382808 inhabitants)
55 Km SW of Bologna (386663 inhabitants)
57 Km S of Modena (184973 inhabitants)
57 Km NE of Viareggio (62467 inhabitants)
59 Km E of Massa (69479 inhabitants)
60 Km NE of Pisa (89158 inhabitants)
61 Km E of Carrara (63133 inhabitants)
65 Km S of Reggio nell'Emilia (171345 inhabitants)
72 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)
95 Km W of Forlì (117913 inhabitants)
98 Km SW of Ferrara (133155 inhabitants)
98 Km NW of Siena (53903 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 1.0 2021-09-07
03:37:51
44.1362 10.8628 10 2021-09-07
04:01:27
Sala Sismica INGV-Roma 95136141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-07 03:37:51 ± 0.12
Latitude 44.1362 ± 0.0063
Longitude 10.8628 ± 0.0075
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 95136141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 711
Semi-minor axis of confidence ellipse (meter) 427
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 360
Circular confidence region, given by single value of horizontal uncertainty (meter) 710
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.48024
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 95136141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-07 04:01:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CDRU.HHZ. 2021-09-07T03:39:23.96 3.0 undecidable manual Sn 1.32 0
IV.IVPL.HHZ. 2021-09-07T03:39:14.86 3.0 undecidable manual Pg 13.19 0
IV.CMIS.HHZ. 2021-09-07T03:39:08.80 3.0 undecidable manual Sn 4.62 0
IV.VAGA.HHZ. 2021-09-07T03:39:07.17 3.0 undecidable manual Sg 14.44 0
IV.MUCR.HHZ. 2021-09-07T03:39:06.37 3.0 negative manual Pn 0.89 0
GU.RNCA.HHZ. 2021-09-07T03:38:50.34 3.0 undecidable manual Sg 2.32 0
IV.VULT.HHZ. 2021-09-07T03:38:46.14 3.0 positive manual Pg 10.38 0
IV.RMP.HHZ. 2021-09-07T03:38:33.02 3.0 undecidable manual Sn 1.98 0
OT.OT13.EHZ. 2021-09-07T03:38:31.19 3.0 positive manual Pn -1.67 0
GU.CANO.HHZ. 2021-09-07T03:38:28.72 3.0 undecidable manual Pg 4.37 0
IV.VOBA.EHZ. 2021-09-07T03:38:23.11 3.0 positive manual Pg 4.26 0
GU.GRAM.HHZ. 2021-09-07T03:38:20.44 3.0 undecidable manual Sn -9.99 0
IV.INTR.HHZ. 2021-09-07T03:38:20.21 3.0 positive manual Pg 7.05 0
IV.PII.HHZ. 2021-09-07T03:38:08.20 0.6 undecidable manual S 211 0.4802 50 -0.36 44
IV.RDP.HHZ. 2021-09-07T03:38:08.05 3.0 undecidable manual Pn -1.95 0
IV.FIR.HHZ. 2021-09-07T03:38:06.12 3.0 undecidable manual Sg 0.54 0
GU.MAIM.HHZ. 2021-09-07T03:38:04.72 0.1 undecidable manual S 230 0.348 50 0.08 98
IV.CRMI.HNE. 2021-09-07T03:38:04.88 0.1 undecidable manual S 166 0.3507 50 0.16 97
GU.SARM.EHZ. 2021-09-07T03:38:03.89 0.1 undecidable manual S 278 0.3345 50 -0.36 92
GU.GSCL.HHZ. 2021-09-07T03:38:03.00 0.1 undecidable manual S 318 0.2905 50 0.05 100
GU.CARD.HHE. 2021-09-07T03:38:02.60 0.3 undecidable manual S 248 0.295 50 -0.47 67
IV.PII.HHZ. 2021-09-07T03:38:01.12 0.3 undecidable manual P 211 0.4802 50 -0.32 67
IV.MPPT.EHZ. 2021-09-07T03:38:01.48 0.6 undecidable manual S 137 0.2419 50 -0.03 50
GU.MAIM.HHZ. 2021-09-07T03:37:59.79 0.1 undecidable manual P 230 0.348 50 0.62 86
IV.BDI.HHZ. 2021-09-07T03:37:59.94 0.1 undecidable manual S 249 0.205 114 -0.45 95
IV.FNVD.HHN. 2021-09-07T03:37:59.47 0.1 undecidable manual S 80 0.1889 116 -0.35 96
IV.CRMI.HNE. 2021-09-07T03:37:59.71 0.3 undecidable manual P 166 0.3507 50 0.49 67
GU.CARD.HHE. 2021-09-07T03:37:59.20 0.3 undecidable manual P 248 0.295 50 0.94 57
GU.SARM.EHZ. 2021-09-07T03:37:58.95 0.1 undecidable manual P 278 0.3345 50 0 99
GU.GSCL.HHZ. 2021-09-07T03:37:58.10 0.1 undecidable manual P 318 0.2905 50 -0.1 98
IV.ZCCA.HHZ. 2021-09-07T03:37:57.93 0.1 undecidable manual P 21 0.2293 50 0.78 82
GU.POPM.HHZ. 2021-09-07T03:37:57.83 0.1 undecidable manual S 220 0.1187 128 0.31 95
IV.BDI.HHZ. 2021-09-07T03:37:56.58 0.6 undecidable manual P 249 0.205 114 -0.14 50
IV.FNVD.HHN. 2021-09-07T03:37:56.12 0.1 undecidable manual P 80 0.1889 116 -0.27 98
IV.MPPT.EHZ. 2021-09-07T03:37:56.82 0.3 undecidable manual P 137 0.2419 50 -0.54 66
IV.MOMA.HHZ. 2021-09-07T03:37:56.34 3.0 positive manual P -0.4 0
GU.POPM.HHZ. 2021-09-07T03:37:55.22 1.0 undecidable manual P 220 0.1187 128 0.16 25
IV.APEC.HHZ. 2021-09-07T03:37:51.71 3.0 undecidable manual P 0.02 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BDI.HHN. ML:1 6.8696455E-5 0.1392 AML other m 2021-09-07T03:38:00.10
IV.BDI.HHE. ML:0.8 4.5690825E-5 0.2208 AML other m 2021-09-07T03:38:01.34
GU.POPM.HHE. ML:1.4 0.00023455255 0.12 AML other m 2021-09-07T03:37:58.27
GU.POPM.HHN. ML:1.5 0.00033502335 0.1808 AML other m 2021-09-07T03:37:57.91
GU.GSCL.HHE. ML:0.7 2.181355E-5 1.2208 AML other m 2021-09-07T03:38:02.95
GU.GSCL.HHN. ML:0.8 2.8384465E-5 0.1792 AML other m 2021-09-07T03:38:03.39
IV.PII.HHE. ML:0.9 1.8322505E-5 0.28 AML other m 2021-09-07T03:38:09.95
IV.PII.HHN. ML:0.9 1.81509E-5 0.3792 AML other m 2021-09-07T03:38:09.45
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