Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 27-01-2019 and time 08:30:09 (UTC) in region 1 km SW Montieri (GR)

A magnitude ML 2.4 earthquake occured in region: 1 km SW Montieri (GR), on

  • 27-01-2019 08:30:09 (UTC)
  • 27-01-2019 09:30:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1200, 11.0070 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 2 1204 1204
Chiusdino SI 8 1903 3107
Massa Marittima GR 12 8375 11482
Monterotondo Marittimo GR 13 1371 12853
Castelnuovo di Val di Cecina PI 13 2231 15084
Monticiano SI 14 1571 16655
Radicondoli SI 16 914 17569
Roccastrada GR 18 9199 26768

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km SW of Siena (53903 inhabitants)
41 Km N of Grosseto (82087 inhabitants)
72 Km S of Scandicci (50609 inhabitants)
74 Km SE of Livorno (159219 inhabitants)
75 Km S of Firenze (382808 inhabitants)
81 Km W of Arezzo (99543 inhabitants)
82 Km SE of Pisa (89158 inhabitants)
85 Km S of Prato (191150 inhabitants)
90 Km SE of Lucca (89046 inhabitants)
91 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 2.4 2019-01-27
08:30:09		 43.1203 11.0072 10 2019-08-22
08:24:48		 Bollettino Sismico Italiano INGV 65094811
Reviewed
Rev100 		ML 2.4 2019-01-27
08:30:09		 43.14 11.0208 8 2019-01-27
08:38:04		 Sala Sismica INGV-Roma 64995421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-27 08:30:09 ± 0.18
Latitude 43.1203 ± 0.0072
Longitude 11.0072 ± 0.0111
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 65094811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 879
Semi-minor axis of confidence ellipse (meter) 491
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 266
Circular confidence region, given by single value of horizontal uncertainty (meter) 880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.03872
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 27
Type of magnitude ML
Reference to an origin 65094811
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-07-18 16:06:57

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 27
Type of magnitude ML
Reference to an origin 64995421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-27 08:38:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ZONE.HHZ. 2019-01-27T08:31:28.06 3.0 undecidable manual Sn 1.81 0
IV.MILN.HHZ. 2019-01-27T08:31:26.97 3.0 undecidable manual Sn 1.54 0
GU.BHB.HHZ. 2019-01-27T08:31:02.89 3.0 negative manual Pn 3.58 0
IV.PARC.HHZ. 2019-01-27T08:30:29.29 0.3 undecidable manual P 59 115.2957 50 0.4 59
IV.SSP9.EHZ. 2019-01-27T08:30:27.82 0.6 undecidable manual P 61 103.7184 50 0.71 36
GU.POPM.HHZ. 2019-01-27T08:30:27.59 0.3 undecidable manual P 349 104.5176 50 0.36 61
IV.MOCL.EHZ. 2019-01-27T08:30:26.64 0.3 undecidable manual P 8 99.123 50 0.24 63
IV.CRE.HHZ. 2019-01-27T08:30:26.24 0.3 undecidable manual P 54 94.1391 50 0.61 57
IV.MGAB.HHZ. 2019-01-27T08:30:25.56 0.3 undecidable manual P 104 92.5407 50 0.17 64
IV.OSSC.HHZ. 2019-01-27T08:30:24.08 0.3 undecidable manual S 23 48.7179 50 -1.15 49
IV.RUFI.EHZ. 2019-01-27T08:30:24.96 0.1 undecidable manual P 27 89.244 50 0.08 88
IV.ARCI.HHZ. 2019-01-27T08:30:24.26 0.6 undecidable manual S 128 48.3183 50 -0.86 38
IV.MAON.HHZ. 2019-01-27T08:30:23.76 0.1 undecidable manual P 172 77.4669 50 0.7 76
IV.CAFI.HHZ. 2019-01-27T08:30:23.52 0.1 undecidable manual P 73 80.9523 50 -0.08 90
IV.CELB.HHZ. 2019-01-27T08:30:23.81 0.1 undecidable manual P 238 76.8675 50 0.85 72
IV.PII.HHZ. 2019-01-27T08:30:22.97 0.1 undecidable manual P 330 77.2671 50 -0.05 91
IV.CASP.HHZ. 2019-01-27T08:30:22.04 0.6 undecidable manual S 198 38.3283 50 -0.43 45
TV.SF04.EHZ. 2019-01-27T08:30:20.76 0.1 negative manual P 121 61.6938 50 0.12 92
Z3.A318A.HHZ. 2019-01-27T08:30:20.93 0.6 undecidable manual S 270 35.1426 50 -0.68 42
TV.SF01.EHZ. 2019-01-27T08:30:19.77 0.1 undecidable manual P 127 56.5989 50 -0.09 94
Z3.A319A.HHE. 2019-01-27T08:30:18.97 0.3 undecidable manual P 319 52.503 50 -0.25 69
IV.ARCI.HHZ. 2019-01-27T08:30:18.50 0.1 undecidable manual P 128 48.3183 50 -0.06 96
IV.OSSC.HHZ. 2019-01-27T08:30:18.21 0.1 negative manual P 23 48.7179 50 -0.42 89
IV.CASP.HHZ. 2019-01-27T08:30:17.11 0.1 undecidable manual P 198 38.3283 50 0.08 97
IV.RIBO.EHZ. 2019-01-27T08:30:16.66 0.3 undecidable manual S 170 19.2696 118 -0.54 68
Z3.A318A.HHZ. 2019-01-27T08:30:16.43 0.1 undecidable manual P 270 35.1426 50 -0.11 97
IV.MAGO.CHZ. 2019-01-27T08:30:15.78 3.0 undecidable manual P -0.29 0
IV.FROS.CHZ. 2019-01-27T08:30:14.66 3.0 undecidable manual S -0.02 0
IV.TRIF.CHZ. 2019-01-27T08:30:13.50 3.0 undecidable manual S -0.19 0
IV.RIBO.EHZ. 2019-01-27T08:30:13.89 0.1 undecidable manual P 170 19.2696 118 -0.1 100
IV.FROS.CHZ. 2019-01-27T08:30:12.71 3.0 undecidable manual P 0.3 0
IV.TRIF.CHZ. 2019-01-27T08:30:12.05 3.0 undecidable manual P 0.21 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIF.CHN. ML:3.3 0.027395299999999997 0.1152 AML other m 2019-01-27T08:30:13.72
IV.TRIF.CHE. ML:3.1 0.01802441 0.1408 AML other m 2019-01-27T08:30:14.04
IV.FROS.CHE. ML:3.0 0.008635513 0.128 AML other m 2019-01-27T08:30:15.02
IV.FROS.CHN. ML:2.8 0.0063778030000000005 0.128 AML other m 2019-01-27T08:30:15.55
IV.RIBO.EHE.01 ML:2.7 0.00359999 1.84 AML other m 2019-01-27T08:30:17.06
IV.MAGO.CHN. ML:2.5 0.0013105859999999999 0.1472 AML other m 2019-01-27T08:30:19.84
IV.MAGO.CHE. ML:2.2 0.00075877345 0.1216 AML other m 2019-01-27T08:30:20.37
TV.SF04.EHN. ML:2.6 0.00089428765 0.1792 AML other m 2019-01-27T08:30:21.57
IV.CASP.HHE. ML:2.7 0.0017626550000000001 0.1984 AML other m 2019-01-27T08:30:22.28
IV.CASP.HHN. ML:2.8 0.002352379 0.2368 AML other m 2019-01-27T08:30:22.43
IV.CAFI.HNN. ML:2.3 0.00029715735 1.0656 AML other m 2019-01-27T08:30:22.73
IV.OSSC.HHN. ML:2.0 0.0003013909 0.3776 AML other m 2019-01-27T08:30:24.45
IV.OSSC.HNE. ML:2.1 0.00034957654999999996 0.3904 AML other m 2019-01-27T08:30:24.46
IV.OSSC.HNN. ML:2.0 0.00028559195 0.256 AML other m 2019-01-27T08:30:24.40
IV.OSSC.HHE. ML:2.0 0.000248627 0.2432 AML other m 2019-01-27T08:30:24.40
IV.ARCI.HHE. ML:2.3 0.0005356795 0.16 AML other m 2019-01-27T08:30:25.19
IV.ARCI.HHN. ML:2.2 0.00039553645 0.1152 AML other m 2019-01-27T08:30:25.40
TV.SF01.EHN. ML:2.7 0.0010935686499999998 0.3584 AML other m 2019-01-27T08:30:28.17
TV.SF01.EHE. ML:2.8 0.001468783 0.3584 AML other m 2019-01-27T08:30:28.34
TV.SF04.EHE. ML:2.8 0.0014145350000000002 0.16 AML other m 2019-01-27T08:30:29.63
IV.PII.HHE. ML:2.0 0.00015265544999999999 0.3008 AML other m 2019-01-27T08:30:34.20
IV.PII.HHN. ML:2.2 0.0002167731 0.32 AML other m 2019-01-27T08:30:34.65
IV.MAON.HHE. ML:2.4 0.0003787623 1.84 AML other m 2019-01-27T08:30:34.03
IV.MAON.HHN. ML:2.4 0.00034327435000000003 0.256 AML other m 2019-01-27T08:30:34.85
IV.CELB.HHN. ML:2.4 0.0003688244 0.2176 AML other m 2019-01-27T08:30:35.51
IV.RUFI.EHE. ML:2.1 0.000142231105 0.2368 AML other m 2019-01-27T08:30:36.44
IV.CELB.HHE. ML:2.3 0.00028120855 0.16 AML other m 2019-01-27T08:30:36.58
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