Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 08-11-2017 and time 01:22:31 (UTC) in region 1 km NE Montieri (GR)

A magnitude ML 2.2 earthquake occured in region: 1 km NE Montieri (GR), on

  • 08-11-2017 01:22:31 (UTC)
  • 08-11-2017 02:22:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1390, 11.0210 at 9 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 6 1903 3107
Castelnuovo di Val di Cecina PI 12 2231 5338
Monticiano SI 13 1571 6909
Monterotondo Marittimo GR 13 1371 8280
Radicondoli SI 14 914 9194
Massa Marittima GR 15 8375 17569
Roccastrada GR 19 9199 26768

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km SW of Siena (53903 inhabitants)
43 Km N of Grosseto (82087 inhabitants)
70 Km S of Scandicci (50609 inhabitants)
73 Km S of Firenze (382808 inhabitants)
74 Km SE of Livorno (159219 inhabitants)
79 Km W of Arezzo (99543 inhabitants)
81 Km SE of Pisa (89158 inhabitants)
83 Km S of Prato (191150 inhabitants)
89 Km S of Pistoia (90315 inhabitants)
89 Km SE of Lucca (89046 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 2.2 2017-11-08
01:22:31		 43.1387 11.021 9 2018-09-04
09:09:12		 Bollettino Sismico Italiano INGV 52077261
Reviewed
Rev100 		ML 2.1 2017-11-08
01:22:31		 43.1447 11.0283 10 2017-11-08
01:35:38		 Sala Sismica INGV-Roma 51696801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-11-08 01:22:31 ± 0.09
Latitude 43.1387 ± 0.0036
Longitude 11.0210 ± 0.0062
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 52077261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 417
Semi-minor axis of confidence ellipse (meter) 199
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 77
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 42
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.11876
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 52077261
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-03-30 16:08:21

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 33
Type of magnitude ML
Reference to an origin 51696801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-11-08 01:35:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MA9.HHZ. 2017-11-08T01:23:04.98 3.0 undecidable manual Pg 2.87 0
GU.POPM.HHZ. 2017-11-08T01:23:01.60 0.3 undecidable manual S 348 102.7194 50 0.09 63
IV.T1299.EHZ. 2017-11-08T01:23:01.48 3.0 negative manual Pn 0.63 0
GU.MAIM.HHZ. 2017-11-08T01:22:59.02 0.6 undecidable manual S 334 96.0261 50 -0.69 36
IV.RUFI.EHZ. 2017-11-08T01:22:57.83 0.3 undecidable manual S 27 86.9463 50 0.53 59
IV.MAON.HHZ. 2017-11-08T01:22:55.68 0.3 undecidable manual S 173 79.365 50 0.43 62
IV.PII.HHZ. 2017-11-08T01:22:54.50 0.3 undecidable manual S 328 76.0683 50 0.12 66
IV.CELB.HHZ. 2017-11-08T01:22:54.98 0.1 undecidable manual S 237 78.8655 50 -0.16 87
IV.CRMI.HHZ. 2017-11-08T01:22:53.34 0.6 undecidable manual S 357 72.9714 50 -0.22 43
MN.VLC.HHZ. 2017-11-08T01:22:52.21 0.3 undecidable manual P 336 124.1868 50 0.24 58
IV.MCIV.HHZ. 2017-11-08T01:22:52.01 0.3 undecidable manual S 127 66.5778 50 0.17 67
IV.LMD.HHZ. 2017-11-08T01:22:51.51 0.1 undecidable manual P 28 117.7932 50 0.52 74
TV.SF04.EHZ. 2017-11-08T01:22:50.91 0.1 undecidable manual S 123 61.7937 50 0.32 87
TV.SF01.EHZ. 2017-11-08T01:22:49.10 0.3 undecidable manual S 129 56.9985 50 -0.2 67
GU.POPM.HHZ. 2017-11-08T01:22:49.36 0.1 negative manual P 348 102.7194 50 0.69 72
GU.MAIM.HHZ. 2017-11-08T01:22:48.00 0.1 undecidable manual P 334 96.0261 50 0.37 80
IV.CRE.HHZ. 2017-11-08T01:22:47.65 0.3 undecidable manual P 54 92.0412 50 0.63 56
IV.MGAB.HHZ. 2017-11-08T01:22:47.08 0.3 undecidable manual P 105 91.9413 50 0.07 65
IV.RUFI.EHZ. 2017-11-08T01:22:46.59 0.1 positive manual P 27 86.9463 50 0.35 82
IV.ARCI.HHZ. 2017-11-08T01:22:46.50 0.3 undecidable manual S 131 48.7179 50 -0.58 62
IV.MAON.HHZ. 2017-11-08T01:22:45.56 0.1 positive manual P 173 79.365 50 0.5 81
IV.OSSC.HHZ. 2017-11-08T01:22:45.96 0.3 undecidable manual S 23 46.4202 50 -0.5 64
IV.SACS.HHZ. 2017-11-08T01:22:45.26 0.1 negative manual P 114 78.9654 50 0.26 85
IV.CELB.HHZ. 2017-11-08T01:22:45.70 0.1 undecidable manual P 237 78.8655 50 0.71 74
IV.CAFI.HHZ. 2017-11-08T01:22:45.11 0.1 positive manual P 74 79.2651 50 0.06 89
IV.CSNT.HHZ. 2017-11-08T01:22:44.71 0.1 undecidable manual S 30 43.0236 50 -0.85 75
IV.CASP.HHZ. 2017-11-08T01:22:44.08 0.1 undecidable manual S 198 40.626 50 -0.84 75
IV.CRMI.HHZ. 2017-11-08T01:22:44.24 0.1 positive manual P 357 72.9714 50 0.16 88
IV.PII.HHZ. 2017-11-08T01:22:44.76 0.1 positive manual P 328 76.0683 50 0.2 87
IV.MCIV.HHZ. 2017-11-08T01:22:43.10 0.1 negative manual P 127 66.5778 50 0.01 92
TV.SF04.EHZ. 2017-11-08T01:22:42.36 0.1 negative manual P 123 61.7937 50 0 93
IV.MAGO.HHZ. 2017-11-08T01:22:41.97 0.3 undecidable manual S 297 32.9448 50 -0.9 56
TV.SF01.EHZ. 2017-11-08T01:22:41.43 0.1 negative manual P 129 56.9985 50 -0.19 90
IV.ARCI.HHZ. 2017-11-08T01:22:40.10 0.1 negative manual P 131 48.7179 50 -0.24 90
Z3.A319A.HHE. 2017-11-08T01:22:40.95 0.6 undecidable manual P 317 51.7038 50 0.14 46
IV.OSSC.HHZ. 2017-11-08T01:22:39.86 0.1 positive manual P 23 46.4202 50 -0.12 93
IV.CSNT.HHZ. 2017-11-08T01:22:39.23 0.1 positive manual P 30 43.0236 50 -0.23 92
Z3.A318A.HHZ. 2017-11-08T01:22:38.45 0.1 positive manual P 267 36.3414 50 0.02 97
IV.CASP.HHZ. 2017-11-08T01:22:38.95 0.1 positive manual P 198 40.626 50 -0.14 94
IV.MAGO.HHZ. 2017-11-08T01:22:37.69 0.1 positive manual P 297 32.9448 50 -0.22 93
IV.FROS.HHZ. 2017-11-08T01:22:36.21 0.1 undecidable manual S 54 13.4754 123 -0.51 90
IV.RIBO.EHZ. 2017-11-08T01:22:35.64 0.1 undecidable manual P 174 21.1677 113 -0.08 98
IV.TRIF.HHZ. 2017-11-08T01:22:35.60 0.1 undecidable manual S 255 9.9789 132 -0.15 99
IV.FROS.HHZ. 2017-11-08T01:22:34.31 0.1 positive manual P 54 13.4754 123 -0.05 100
IV.TRIF.HHZ. 2017-11-08T01:22:33.97 0.1 negative manual P 255 9.9789 132 0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.POPM.HHN. ML:2.3 0.00018490795 1.5 AML other m 2017-11-08T01:23:05.22
IV.MAGO.HHN. ML:2.1 0.0006986127 0.24 AML other m 2017-11-08T01:22:43.74
IV.MAGO.HHE. ML:2.1 0.0006435266500000001 0.4 AML other m 2017-11-08T01:22:44.43
IV.CSNT.HHN. ML:2.5 0.0010200547 0.22 AML other m 2017-11-08T01:22:44.83
IV.CSNT.HHE. ML:2.5 0.0010818551499999999 0.28 AML other m 2017-11-08T01:22:45.20
IV.OSSC.HHN. ML:2.2 0.0004145083 0.28 AML other m 2017-11-08T01:22:46.59
IV.ARCI.HHE. ML:2.6 0.00115598965 0.34 AML other m 2017-11-08T01:22:46.69
IV.ARCI.HHN. ML:2.5 0.0007976875 0.26 AML other m 2017-11-08T01:22:48.78
IV.OSSC.HHE. ML:2.4 0.0005304816500000001 0.42 AML other m 2017-11-08T01:22:49.76
IV.OSSC.HNN. ML:2.4 0.0006188471 1.44 AML other m 2017-11-08T01:22:50.76
IV.MCIV.HHE. ML:2.5 0.0006327844 0.4 AML other m 2017-11-08T01:22:53.66
IV.MCIV.HHN. ML:2.4 0.00047439794999999994 0.288 AML other m 2017-11-08T01:22:53.65
IV.CRMI.HNN. ML:1.9 0.00012738959999999998 0.3 AML other m 2017-11-08T01:22:55.53
IV.CRMI.HHN. ML:1.5 0.00005129444 0.28 AML other m 2017-11-08T01:22:55.38
IV.PII.HHN. ML:2.5 0.00050517425 0.28 AML other m 2017-11-08T01:22:55.52
IV.PII.HHE. ML:2.2 0.0002919201 0.36 AML other m 2017-11-08T01:22:55.87
IV.CRMI.HNE. ML:2.0 0.00015980070000000003 1.52 AML other m 2017-11-08T01:22:56.83
IV.CRMI.HHE. ML:1.6 0.000065391325 1.5 AML other m 2017-11-08T01:22:56.83
IV.MAON.HHE. ML:2.6 0.0005012358999999999 1.78 AML other m 2017-11-08T01:22:56.10
IV.MAON.HHN. ML:2.8 0.00083621135 0.2 AML other m 2017-11-08T01:22:56.69
IV.CAFI.HHN. ML:1.7 0.00007490532499999999 0.36 AML other m 2017-11-08T01:22:56.82
IV.CELB.HHN. ML:2.2 0.0008494001 0.36 AML other m 2017-11-08T01:22:57.44
IV.CELB.HHE. ML:2.2 0.0003971931 0.24 AML other m 2017-11-08T01:22:57.32
IV.RUFI.EHE. ML:2.0 0.00012782475499999998 0.26 AML other m 2017-11-08T01:22:58.03
IV.SACS.HHE. ML:1.8 0.00010543507500000001 1.62 AML other m 2017-11-08T01:22:59.95
GU.MAIM.HHE. ML:1.9 0.00008026296499999999 0.42 AML other m 2017-11-08T01:23:00.28
IV.RUFI.EHN. ML:2.0 0.0001295774 0.7 AML other m 2017-11-08T01:23:00.49
GU.MAIM.HHN. ML:1.8 0.00009555164 0.4 AML other m 2017-11-08T01:23:01.86
GU.POPM.HHE. ML:2.4 0.00022787574999999998 0.26 AML other m 2017-11-08T01:23:04.53
IV.OSSC.HNE. ML:2.2 0.00042440785000000004 0.2904 AML other m 2017-11-08T01:22:46.60
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