Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 07-08-2022 and time 12:10:29 (UTC) in region 5 km N Montieri (GR)

A magnitude ML 1.6 earthquake occured in region: 5 km N Montieri (GR), on

  • 07-08-2022 12:10:29 (UTC)
  • 07-08-2022 14:10:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1780, 11.0280 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Montieri GR 5 1204 1204
Chiusdino SI 6 1903 3107
Radicondoli SI 9 914 4021
Castelnuovo di Val di Cecina PI 10 2231 6252
Monticiano SI 13 1571 7823
Monterotondo Marittimo GR 14 1371 9194
Massa Marittima GR 18 8375 17569
Casole d'Elsa SI 18 3897 21466
Pomarance PI 19 5897 27363
Sovicille SI 20 10116 37479

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SW of Siena (53903 inhabitants)
47 Km N of Grosseto (82087 inhabitants)
66 Km S of Scandicci (50609 inhabitants)
68 Km S of Firenze (382808 inhabitants)
72 Km SE of Livorno (159219 inhabitants)
76 Km W of Arezzo (99543 inhabitants)
78 Km SE of Pisa (89158 inhabitants)
79 Km S of Prato (191150 inhabitants)
85 Km S of Pistoia (90315 inhabitants)
86 Km SE of Lucca (89046 inhabitants)
99 Km SE of Viareggio (62467 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
Bulletin
Rev1000 		ML 1.6 2022-08-07
12:10:29		 43.1778 11.028 10 2023-01-31
19:03:44		 Bollettino Sismico Italiano INGV 109667521
Reviewed
Rev100 		ML 1.6 2022-08-07
12:10:29		 43.2015 11.0147 10 2022-08-07
12:22:26		 Sala Sismica INGV-Roma 108232371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-07 12:10:29 ± 0.15
Latitude 43.1778 ± 0.0054
Longitude 11.0280 ± 0.0074
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 109667521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 591
Semi-minor axis of confidence ellipse (meter) 398
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 290
Circular confidence region, given by single value of horizontal uncertainty (meter) 590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.09893
Epicentral distance of station farthest from the epicenter (degree) 0.73654
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 109667521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-09-13 14:30:05

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 108232371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-07 12:22:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CELB.HHZ. 2022-08-07T12:10:54.50 0.3 undecidable manual S 234 81.7515 50 0.04 66
ZH.T1648.HNN. 2022-08-07T12:10:48.68 0.6 undecidable manual S 21 57.8976 50 0.61 40
IV.ARCI.HHZ. 2022-08-07T12:10:45.74 0.3 undecidable manual S 135 51.2154 50 -0.56 62
IV.CELB.HHZ. 2022-08-07T12:10:45.01 0.3 undecidable manual P 234 81.7515 50 0.92 51
IV.CASP.HHZ. 2022-08-07T12:10:44.10 0.3 undecidable manual S 197 44.9217 50 -0.52 64
IV.MALA3.EHN. 2022-08-07T12:10:44.53 0.6 undecidable manual S 117 41.3253 50 0.88 37
IV.OSSC.HHE. 2022-08-07T12:10:43.72 0.3 undecidable manual S 25 42.2244 50 -0.17 69
IV.MALA0.EHN. 2022-08-07T12:10:43.79 0.3 undecidable manual S 118 40.8258 50 0.26 68
IV.MALA1.EHN. 2022-08-07T12:10:43.68 0.3 undecidable manual S 118 41.1255 50 0.06 71
IV.MALA2.EHN. 2022-08-07T12:10:43.39 0.3 undecidable manual S 118 41.2254 50 -0.25 68
IV.MALA4.EHZ. 2022-08-07T12:10:43.42 0.3 undecidable manual S 118 41.1255 50 -0.19 69
IV.CSNT.HHZ. 2022-08-07T12:10:42.50 0.3 undecidable manual S 33 39.0276 50 -0.54 64
ZH.T1648.HNN. 2022-08-07T12:10:41.22 0.3 undecidable manual P 21 57.8976 50 0.81 55
IV.MAGO.CHZ. 2022-08-07T12:10:40.20 0.3 undecidable manual S 290 31.746 50 -0.9 56
ZH.T1646.EHN. 2022-08-07T12:10:40.01 0.6 undecidable manual P 7 53.8017 50 0.23 45
IV.ARCI.HHZ. 2022-08-07T12:10:39.81 0.3 undecidable manual P 135 51.2154 50 0.43 65
IV.OSSC.HHE. 2022-08-07T12:10:38.10 0.1 undecidable manual P 25 42.2244 50 0.11 94
IV.CASP.HHZ. 2022-08-07T12:10:38.72 0.3 undecidable manual P 197 44.9217 50 0.31 67
IV.CSNT.HHZ. 2022-08-07T12:10:37.44 0.3 undecidable manual P 33 39.0276 50 -0.06 71
IV.MALA0.EHN. 2022-08-07T12:10:37.52 0.3 undecidable manual P 118 40.8258 50 -0.26 68
IV.MALA1.EHN. 2022-08-07T12:10:37.93 0.3 undecidable manual P 118 41.1255 50 0.1 71
IV.MALA2.EHN. 2022-08-07T12:10:37.68 0.3 undecidable manual P 118 41.2254 50 -0.17 69
IV.MALA4.EHZ. 2022-08-07T12:10:37.87 0.3 undecidable manual P 118 41.1255 50 0.04 71
IV.MALA3.EHN. 2022-08-07T12:10:37.98 0.6 undecidable manual P 117 41.3253 50 0.12 47
IV.MAGO.CHZ. 2022-08-07T12:10:36.37 0.3 undecidable manual P 290 31.746 50 -0.01 73
IV.FROS.CHZ. 2022-08-07T12:10:34.60 0.3 undecidable manual S 71 10.9779 132 -0.48 69
IV.FROS.CHZ. 2022-08-07T12:10:32.96 0.1 undecidable manual P 71 10.9779 132 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FROS.CHE. ML:2.0 0.0013599999999999999 0.48 AML other m 2022-08-07T12:10:34.66
IV.FROS.CHN. ML:2.2 0.001975 1.32 AML other m 2022-08-07T12:10:35.79
IV.MAGO.CHN. ML:1.5 0.00014 0.14 AML other m 2022-08-07T12:10:40.33
IV.MAGO.CHE. ML:1.2 0.000079 0.86 AML other m 2022-08-07T12:10:40.67
IV.CSNT.HHN. ML:1.4 0.0000921 0.16 AML other m 2022-08-07T12:10:42.88
IV.CSNT.HHE. ML:1.4 0.0000872 1.5 AML other m 2022-08-07T12:10:43.86
IV.CASP.HHN. ML:1.9 0.000234 0.2 AML other m 2022-08-07T12:10:44.65
IV.CASP.HHE. ML:1.7 0.0001555 0.36 AML other m 2022-08-07T12:10:44.68
IV.CELB.HHN. ML:1.2 0.000022298445 0.9824 AML other m 2022-08-07T12:10:54.34
IV.CELB.HHE. ML:1.5 0.00004560537 0.8384 AML other m 2022-08-07T12:10:55.50
IV.CASP.HNE. ML:1.7 0.000158577545 0.16 AML other m 2022-08-07T12:10:44.69
IV.CASP.HNN. ML:1.9 0.0002606946 0.288 AML other m 2022-08-07T12:10:44.45
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