Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 23-03-2022 and time 23:45:13 (Italy) in region 1 km W Montieri (GR)

A magnitude ML 2.0 earthquake occured in region: 1 km W Montieri (GR), on

  • 23-03-2022 22:45:13 (UTC)
  • 23-03-2022 23:45:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1340, 11.0050 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 1 1204 1204
Chiusdino SI 7 1903 3107
Castelnuovo di Val di Cecina PI 11 2231 5338
Monterotondo Marittimo GR 12 1371 6709
Massa Marittima GR 13 8375 15084
Monticiano SI 14 1571 16655
Radicondoli SI 15 914 17569
Roccastrada GR 19 9199 26768

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km SW of Siena (53903 inhabitants)
42 Km N of Grosseto (82087 inhabitants)
71 Km S of Scandicci (50609 inhabitants)
73 Km SE of Livorno (159219 inhabitants)
74 Km S of Firenze (382808 inhabitants)
80 Km W of Arezzo (99543 inhabitants)
81 Km SE of Pisa (89158 inhabitants)
83 Km S of Prato (191150 inhabitants)
89 Km SE of Lucca (89046 inhabitants)
89 Km S of Pistoia (90315 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 2.0 2022-03-23
22:45:13		 43.1345 11.0053 10 2022-07-08
12:33:53		 Bollettino Sismico Italiano INGV 104252251
Reviewed
Rev100 		ML 2.1 2022-03-23
22:45:13		 43.1397 11.0012 10 2022-03-23
22:59:38		 Sala Sismica INGV-Roma 102303771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-03-23 22:45:13 ± 0.07
Latitude 43.1345 ± 0.0045
Longitude 11.0053 ± 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 104252251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 503
Semi-minor axis of confidence ellipse (meter) 407
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 255
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.07734
Epicentral distance of station farthest from the epicenter (degree) 0.83817
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations 39
Type of magnitude ML
Reference to an origin 104252251
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-05-06 08:16:40

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 102303771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-03-23 22:59:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRMI.HHZ. 2022-03-23T22:45:35.57 0.6 undecidable manual S 358 73.371 50 0.04 45
IV.PII.HHZ. 2022-03-23T22:45:35.80 0.6 undecidable manual S 329 75.7686 50 -0.38 41
IV.MPPT.EHZ. 2022-03-23T22:45:29.26 0.3 undecidable manual P 4 91.5417 50 0.34 61
IV.MGAB.HHZ. 2022-03-23T22:45:29.84 0.6 undecidable manual P 105 93.0402 50 0.69 36
IV.ARCI.HHZ. 2022-03-23T22:45:28.42 0.3 undecidable manual S 129 49.4172 50 -0.7 59
IV.RUFI.EHZ. 2022-03-23T22:45:28.10 0.6 undecidable manual P 27 87.9453 50 -0.26 42
IV.OSSC.HHZ. 2022-03-23T22:45:28.27 0.3 undecidable manual S 24 47.3193 50 -0.3 67
IV.CSNT.HHZ. 2022-03-23T22:45:27.27 0.1 undecidable manual S 31 44.0226 50 -0.43 87
IV.PII.HHZ. 2022-03-23T22:45:26.60 0.1 undecidable manual P 329 75.7686 50 0.12 88
IV.CASP.HHZ. 2022-03-23T22:45:26.06 0.3 undecidable manual S 197 39.8268 50 -0.5 65
IV.CRMI.HHZ. 2022-03-23T22:45:26.47 0.1 positive manual P 358 73.371 50 0.36 84
IV.MCIV.CHZ. 2022-03-23T22:45:25.52 0.1 undecidable manual P 126 67.2771 50 0.35 85
IV.MAGO.CHZ. 2022-03-23T22:45:24.12 0.6 undecidable manual S 299 32.0457 50 -0.38 45
TV.SF11.HHE. 2022-03-23T22:45:24.76 0.1 positive manual P 118 62.0934 50 0.38 85
IV.OSSC.HHZ. 2022-03-23T22:45:22.28 0.1 positive manual P 24 47.3193 50 0.18 91
IV.ARCI.HHZ. 2022-03-23T22:45:22.61 0.1 positive manual P 129 49.4172 50 0.19 91
IV.CASP.HHZ. 2022-03-23T22:45:21.10 0.1 undecidable manual P 197 39.8268 50 0.16 93
IV.CSNT.HHZ. 2022-03-23T22:45:21.67 0.1 positive manual P 31 44.0226 50 0.08 94
IV.RIBO.EHZ.01 2022-03-23T22:45:20.92 0.3 undecidable manual S 171 20.868 116 -0.35 69
IV.MAGO.CHZ. 2022-03-23T22:45:19.80 0.1 positive manual P 299 32.0457 50 0.05 96
IV.FROS.CHZ. 2022-03-23T22:45:19.06 0.3 undecidable manual S 56 14.7741 124 -0.38 69
IV.RIBO.EHZ.01 2022-03-23T22:45:17.98 0.1 positive manual P 171 20.868 116 0.09 97
IV.TRIF.CHZ. 2022-03-23T22:45:17.63 0.1 undecidable manual S 255 8.5803 139 -0.2 97
IV.TRIF.CHZ. 2022-03-23T22:45:16.09 0.1 negative manual P 255 8.5803 139 0.2 97
IV.FROS.CHZ. 2022-03-23T22:45:16.82 0.1 negative manual P 56 14.7741 124 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIF.CHN. ML:3.0 0.013571959 0.1024 AML other m 2022-03-23T22:45:17.70
IV.TRIF.CHE. ML:3.1 0.01763259 1.8464 AML other m 2022-03-23T22:45:17.07
IV.FROS.CHE. ML:2.8 0.0063637765 0.4736 AML other m 2022-03-23T22:45:19.15
IV.FROS.CHN. ML:3.2 0.015588415000000001 0.192 AML other m 2022-03-23T22:45:19.16
IV.RIBO.EHE.01 ML:2.7 0.0038499999999999997 0.24 AML other m 2022-03-23T22:45:21.11
IV.RIBO.EHN.01 ML:2.9 0.005751013 0.0768 AML other m 2022-03-23T22:45:21.52
IV.MAGO.CHN. ML:2.1 0.000603 0.1 AML other m 2022-03-23T22:45:24.33
IV.MAGO.CHE. ML:2.0 0.00042338034999999996 0.1024 AML other m 2022-03-23T22:45:25.61
IV.CASP.HNN. ML:2.6 0.001450468 0.2048 AML other m 2022-03-23T22:45:26.51
IV.CASP.HHN. ML:2.6 0.0013869365 0.1024 AML other m 2022-03-23T22:45:26.61
IV.CASP.HHE. ML:2.4 0.00087660355 0.0896 AML other m 2022-03-23T22:45:26.64
IV.CASP.HNE. ML:2.5 0.00106446025 0.1664 AML other m 2022-03-23T22:45:26.64
IV.CSNT.HHN. ML:2.1 0.00039512685 0.1408 AML other m 2022-03-23T22:45:27.49
IV.CSNT.HHE. ML:2.2 0.00048719235 0.1152 AML other m 2022-03-23T22:45:27.53
IV.OSSC.HHE. ML:1.9 0.0002091239 0.1408 AML other m 2022-03-23T22:45:28.50
IV.OSSC.HHN. ML:1.8 0.0001809526 0.2432 AML other m 2022-03-23T22:45:28.79
IV.ARCI.HHE. ML:2.2 0.00046236734999999994 0.2688 AML other m 2022-03-23T22:45:29.29
IV.ARCI.HNE. ML:2.2 0.0004328494 0.256 AML other m 2022-03-23T22:45:29.30
IV.ARCI.HHN. ML:2.2 0.00041716145000000003 0.1408 AML other m 2022-03-23T22:45:29.50
IV.ARCI.HNN. ML:2.2 0.0003943064 0.1408 AML other m 2022-03-23T22:45:29.50
IV.MCIV.CHN. ML:2.1 0.0002218091 0.3328 AML other m 2022-03-23T22:45:35.80
IV.MCIV.CHE. ML:2.1 0.00022520005 0.2432 AML other m 2022-03-23T22:45:37.05
IV.PII.HHN. ML:1.8 0.000095291325 0.2816 AML other m 2022-03-23T22:45:37.15
IV.CRMI.HHN. ML:1.4 0.000040325624999999994 0.1152 AML other m 2022-03-23T22:45:37.46
IV.CRMI.HHE. ML:1.3 0.000030020535 0.2304 AML other m 2022-03-23T22:45:37.64
IV.PII.HHE. ML:1.7 0.000079390295 0.4096 AML other m 2022-03-23T22:45:39.88
IV.BOSL.HHN. ML:1.3 0.000017590250000000003 0.2304 AML other m 2022-03-23T22:45:42.48
IV.RUFI.EHE. ML:1.8 0.00008247370500000001 0.2816 AML other m 2022-03-23T22:45:42.55
IV.RUFI.EHN. ML:1.8 0.00008162102 0.6912 AML other m 2022-03-23T22:45:43.39
IV.MPPT.EHN. ML:1.4 0.000028792695 0.384 AML other m 2022-03-23T22:45:43.91
IV.CRE.HHN. ML:1.8 0.00007547624 0.32 AML other m 2022-03-23T22:45:44.28
IV.BOSL.HHE. ML:1.4 0.00002362562 0.4224 AML other m 2022-03-23T22:45:44.60
IV.MPPT.EHE. ML:1.3 0.000026247105 0.256 AML other m 2022-03-23T22:45:44.26
IV.MGAB.HHE. ML:1.6 0.000045654714999999996 0.3968 AML other m 2022-03-23T22:45:44.77
IV.MGAB.HHN. ML:1.7 0.00005067579 0.2176 AML other m 2022-03-23T22:45:45.37
GU.POPM.HHN. ML:1.6 0.00003430354 0.192 AML other m 2022-03-23T22:45:46.00
IV.MGAB.HNN. ML:2.1 0.000133846225 0.64 AML other m 2022-03-23T22:45:46.40
IV.CRE.HHE. ML:1.8 0.000066976545 0.4608 AML other m 2022-03-23T22:45:47.14
GU.POPM.HHE. ML:1.6 0.00003978036 0.2816 AML other m 2022-03-23T22:45:47.26
GU.CARD.HHE. ML:1.5 0.000027903175000000002 0.4096 AML other m 2022-03-23T22:45:50.16
IV.ATMI.HHE. ML:2.3 0.00017792355 0.448 AML other m 2022-03-23T22:45:50.39
IV.ATMI.HHN. ML:2.2 0.00013936001500000002 0.512 AML other m 2022-03-23T22:45:51.99
GU.CARD.HHN. ML:1.5 0.0000312348 0.32 AML other m 2022-03-23T22:45:52.33
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
Waveforms Seismic signals in miniseed + resp format Download