Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 26-01-2022 and time 07:02:44 (UTC) in region 6 km N Monteroni d'Arbia (SI)

A magnitude ML 1.5 earthquake occured in region: 6 km N Monteroni d'Arbia (SI), on

  • 26-01-2022 07:02:44 (UTC)
  • 26-01-2022 08:02:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.2840, 11.4130 at 7 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
Monteroni d'Arbia SI 6 9088 9088
Siena SI 8 53903 62991
Castelnuovo Berardenga SI 10 9097 72088
Murlo SI 13 2389 74477
Asciano SI 13 7118 81595
Sovicille SI 15 10116 91711
Rapolano Terme SI 16 5249 96960
Buonconvento SI 17 3173 100133
Monteriggioni SI 20 9810 109943

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km SE of Siena (53903 inhabitants)
43 Km W of Arezzo (99543 inhabitants)
56 Km S of Firenze (382808 inhabitants)
56 Km SE of Scandicci (50609 inhabitants)
63 Km NE of Grosseto (82087 inhabitants)
71 Km SE of Prato (191150 inhabitants)
82 Km W of Perugia (166134 inhabitants)
83 Km SE of Pistoia (90315 inhabitants)
94 Km E of Livorno (159219 inhabitants)
95 Km SE of Pisa (89158 inhabitants)
96 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 1.5 2022-01-26
07:02:44		 43.2835 11.4127 7 2022-07-08
12:33:26		 Bollettino Sismico Italiano INGV 100528121
Reviewed
Rev100 		ML 1.5 2022-01-26
07:02:44		 43.2798 11.4117 7 2022-01-26
07:17:02		 Sala Sismica INGV-Roma 100195371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-26 07:02:44 ± 0.14
Latitude 43.2835 ± 0.0054
Longitude 11.4127 ± 0.0111
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 100528121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 822
Semi-minor axis of confidence ellipse (meter) 609
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 283
Circular confidence region, given by single value of horizontal uncertainty (meter) 820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.63042
Number of stations at which the event was observed 41
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 100528121
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-04-26 16:31:12

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 100195371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-01-26 07:17:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.MUGIO.HHZ. 2022-01-26T07:04:27.42 3.0 undecidable manual Sg 14.15 0
IV.CAR1.HHZ. 2022-01-26T07:04:27.69 3.0 undecidable manual Sn -5.94 0
IV.PZUN.HHZ. 2022-01-26T07:04:20.83 3.0 undecidable manual Sg 17.85 0
IV.CMPR.HHZ. 2022-01-26T07:04:16.16 3.0 undecidable manual Sg 13.34 0
AC.VLO.HHZ. 2022-01-26T07:04:10.19 3.0 negative manual Pg 14.31 0
IV.BRES.EHZ. 2022-01-26T07:04:09.75 3.0 undecidable manual Sn -1.21 0
OX.SABO.HNZ. 2022-01-26T07:04:07.70 3.0 undecidable manual Sg 12.34 0
IV.SARZ.HHZ. 2022-01-26T07:04:07.73 3.0 undecidable manual Sg 9.77 0
IV.MPAZ.HHZ. 2022-01-26T07:04:05.81 3.0 undecidable manual Pg 11.41 0
CR.ZAG.BHZ. 2022-01-26T07:04:04.20 3.0 undecidable manual Sn -7.43 0
IV.PTCC.HHZ. 2022-01-26T07:04:04.16 3.0 undecidable manual Sn -0.03 0
TV.GMB1.HHZ. 2022-01-26T07:04:03.40 3.0 negative manual Pg 12.59 0
IV.ZEN8.EHZ. 2022-01-26T07:04:01.85 3.0 undecidable manual Sg 10.39 0
IV.VOBA.EHZ. 2022-01-26T07:03:59.56 3.0 undecidable manual Sg 6.19 0
IV.ECTS.HHZ. 2022-01-26T07:03:56.33 3.0 undecidable manual Pn 4.89 0
RD.PGF.BHZ. 2022-01-26T07:03:51.38 3.0 undecidable manual Sg 7.18 0
IV.SPS2.HHZ. 2022-01-26T07:03:43.29 3.0 positive manual Pn 2.59 0
IV.VENL.EHZ. 2022-01-26T07:03:42.30 3.0 undecidable manual Sg 3.08 0
IV.CRAC.EHZ. 2022-01-26T07:03:37.28 3.0 undecidable manual Pg 7 0
IV.SACR.HHZ. 2022-01-26T07:03:34.64 3.0 undecidable manual Sn -1.48 0
IV.LPEL.HHZ. 2022-01-26T07:03:30.14 3.0 undecidable manual Sg 10.95 0
IV.BRSN.HNZ. 2022-01-26T07:03:21.00 3.0 undecidable manual Sg 7.25 0
IV.RMP.HHZ. 2022-01-26T07:03:14.08 3.0 undecidable manual Sg 3.02 0
IV.PCN.EHZ. 2022-01-26T07:03:12.61 3.0 undecidable manual Pn -3.08 0
GU.RNCA.HHZ. 2022-01-26T07:03:12.25 3.0 negative manual Pn -4.93 0
IV.SACR.HHZ. 2022-01-26T07:03:10.60 3.0 undecidable manual Pn 2.59 0
IV.MRB1.HHZ. 2022-01-26T07:03:09.63 3.0 positive manual Pn -2.86 0
IV.VIVA.HHZ. 2022-01-26T07:03:07.41 3.0 undecidable manual Sn -5.13 0
IV.OFFI.HHZ. 2022-01-26T07:03:07.19 3.0 undecidable manual Sg 3.06 0
IV.CRMI.HNE. 2022-01-26T07:03:06.06 0.6 undecidable manual S 329 66.5778 50 0.05 47
IV.CRE.HHZ. 2022-01-26T07:03:03.33 0.3 undecidable manual S 49 57.1983 50 -0.15 70
IV.CAFI.HHZ. 2022-01-26T07:02:59.60 0.6 undecidable manual S 83 45.0216 50 -0.63 42
IV.ARCI.HHZ. 2022-01-26T07:02:59.94 0.6 undecidable manual S 174 48.1185 50 -1.14 34
IV.MMUR.HNZ. 2022-01-26T07:02:58.51 3.0 undecidable manual S -0.28 0
IV.ASQU.HHE. 2022-01-26T07:02:57.43 0.3 undecidable manual P 28 64.491 50 0.72 59
IV.CRMI.HNE. 2022-01-26T07:02:57.48 0.3 undecidable manual P 329 66.5778 50 0.44 65
IV.MGAB.HHZ. 2022-01-26T07:02:57.82 0.3 undecidable manual P 126 69.9744 50 0.26 67
IV.SACS.HHZ. 2022-01-26T07:02:56.71 0.3 undecidable manual P 140 62.7927 50 0.26 68
IV.OSSC.HHZ. 2022-01-26T07:02:55.25 0.3 undecidable manual S 333 29.8479 103 -0.14 74
IV.CRE.HHZ. 2022-01-26T07:02:55.94 0.3 undecidable manual P 49 57.1983 50 0.36 67
IV.MCIV.CHE. 2022-01-26T07:02:55.97 0.3 undecidable manual P 159 59.9955 50 -0.04 72
IV.ARCI.HHZ. 2022-01-26T07:02:54.03 0.1 undecidable manual P 174 48.1185 50 -0.16 95
IV.TRIF.CHZ. 2022-01-26T07:02:53.57 0.3 undecidable manual P 246 45.3213 50 -0.18 72
IV.RMP.HHZ. 2022-01-26T07:02:53.12 3.0 negative manual Pn -0.81 0
IV.FROS.CHZ. 2022-01-26T07:02:53.01 0.6 undecidable manual S 249 22.2555 107 0.16 50
IV.CAFI.HHZ. 2022-01-26T07:02:53.78 0.1 undecidable manual P 83 45.0216 50 0.08 98
IV.CSNT.HHZ. 2022-01-26T07:02:52.81 0.3 undecidable manual S 335 23.2545 106 -0.36 72
IV.OSSC.HHZ. 2022-01-26T07:02:50.69 0.1 undecidable manual P 333 29.8479 103 -0.22 97
IV.CSNT.HHZ. 2022-01-26T07:02:49.48 0.1 undecidable manual P 335 23.2545 106 -0.14 100
IV.FROS.CHZ. 2022-01-26T07:02:49.74 0.1 undecidable manual P 249 22.2555 107 0.3 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FROS.CHE. ML:1.8 0.000505 0.32 AML other m 2022-01-26T07:02:53.34
IV.CSNT.HHE. ML:1.6 0.00025550000000000003 0.16 AML other m 2022-01-26T07:02:53.55
IV.FROS.CHN. ML:1.8 0.00044 0.32 AML other m 2022-01-26T07:02:53.77
IV.OSSC.HHE. ML:1.3 0.00010899999999999999 0.84 AML other m 2022-01-26T07:02:55.45
IV.OSSC.HHN. ML:1.3 0.0000925 0.84 AML other m 2022-01-26T07:02:56.51
IV.CSNT.HHN. ML:1.4 0.0001735 0.62 AML other m 2022-01-26T07:02:56.09
IV.CAFI.HHE. ML:1.4 0.0000775 1.68 AML other m 2022-01-26T07:03:00.13
IV.CAFI.HHN. ML:1.5 0.0000946 0.86 AML other m 2022-01-26T07:03:00.25
IV.ARCI.HHE. ML:1.7 0.00013700000000000002 0.46 AML other m 2022-01-26T07:03:02.23
IV.ARCI.HHN. ML:1.6 0.000127 1.44 AML other m 2022-01-26T07:03:02.20
IV.CRE.HHE. ML:1.6 0.0000858 0.2 AML other m 2022-01-26T07:03:04.35
IV.CRE.HHN. ML:1.5 0.0000705 1.16 AML other m 2022-01-26T07:03:06.66
IV.MGAB.HHN. ML:1.3 0.000033299999999999996 0.42 AML other m 2022-01-26T07:03:12.97
IV.MGAB.HHE. ML:1.3 0.0000335 0.7 AML other m 2022-01-26T07:03:14.92
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