Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 17-01-2022 and time 09:35:54 (Italy) in region 5 km NW Castel del Piano (GR)

A magnitude ML 1.5 earthquake occured in region: 5 km NW Castel del Piano (GR), on

  • 17-01-2022 08:35:54 (UTC)
  • 17-01-2022 09:35:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9230, 11.4890 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
Castel del Piano GR 5 4690 4690
Seggiano GR 6 961 5651
Arcidosso GR 7 4285 9936
Cinigiano GR 8 2618 12554
Santa Fiora GR 13 2622 15176
Castiglione d'Orcia SI 14 2346 17522
Montalcino SI 15 5093 22615
Roccalbegna GR 16 1044 23659
Abbadia San Salvatore SI 16 6444 30103
Campagnatico GR 18 2412 32515
San Quirico d'Orcia SI 18 2662 35177
Piancastagnaio SI 19 4230 39407
Civitella Paganico GR 19 3154 42561

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NE of Grosseto (82087 inhabitants)
46 Km S of Siena (53903 inhabitants)
68 Km SW of Arezzo (99543 inhabitants)
76 Km NW of Viterbo (67173 inhabitants)
76 Km W of Perugia (166134 inhabitants)
96 Km N of Civitavecchia (52991 inhabitants)
96 Km S of Firenze (382808 inhabitants)
96 Km S of Scandicci (50609 inhabitants)
99 Km W of Foligno (57155 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 2022-01-17
08:35:54		 42.9233 11.4887 9 2022-07-08
12:33:35		 Bollettino Sismico Italiano INGV 101934661
Reviewed
Rev100 		ML 1.4 2022-01-17
08:35:54		 42.9292 11.4878 9 2022-01-17
08:42:25		 Sala Sismica INGV-Roma 99874701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-17 08:35:54 ± 0.1
Latitude 42.9233 ± 0.0081
Longitude 11.4887 ± 0.0061
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 101934661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 866
Semi-minor axis of confidence ellipse (meter) 467
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 188
Circular confidence region, given by single value of horizontal uncertainty (meter) 870.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 66
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
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) 0.07195
Epicentral distance of station farthest from the epicenter (degree) 0.62503
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 18
Type of magnitude ML
Reference to an origin 101934661
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-05-16 09:19:05

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 99874701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-01-17 08:42:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CASP.HHZ. 2022-01-17T08:36:11.59 0.3 undecidable manual S 254 52.8027 50 0.19 69
IV.MGAB.HHZ. 2022-01-17T08:36:10.70 0.6 undecidable manual S 91 50.7159 50 -0.14 47
IV.TRIF.CHZ. 2022-01-17T08:36:10.67 0.6 undecidable manual S 294 52.0035 50 -0.54 43
IV.LATE.HHE. 2022-01-17T08:36:08.65 0.6 undecidable manual S 143 42.9237 50 -0.11 48
IV.SACS.HHN. 2022-01-17T08:36:06.52 0.3 undecidable manual S 103 35.2425 50 -0.19 71
IV.OSSC.HHE. 2022-01-17T08:36:06.82 0.6 undecidable manual P 344 69.375 50 0.02 46
IV.CSNT.HHZ. 2022-01-17T08:36:05.64 0.1 undecidable manual P 345 63.0924 50 -0.18 91
IV.CAFI.HHZ. 2022-01-17T08:36:05.27 0.1 undecidable manual P 41 59.3961 50 0.02 94
IV.RIBO.EHZ. 2022-01-17T08:36:05.97 0.3 undecidable manual S 275 36.0417 50 -0.95 55
IV.TRIF.CHZ. 2022-01-17T08:36:04.60 0.1 undecidable manual P 294 52.0035 50 0.47 87
IV.CASP.HHZ. 2022-01-17T08:36:04.29 0.3 undecidable manual P 254 52.8027 50 0.05 71
IV.LATE.HHE. 2022-01-17T08:36:03.33 0.3 undecidable manual P 143 42.9237 50 0.62 63
IV.MGAB.HHZ. 2022-01-17T08:36:03.61 1.0 undecidable manual P 91 50.7159 50 -0.3 23
IV.FROS.CHZ. 2022-01-17T08:36:02.46 0.1 undecidable manual P 320 41.625 50 -0.06 97
IV.MCIV.CHZ. 2022-01-17T08:36:02.16 0.3 undecidable manual S 136 22.1556 113 -0.62 65
IV.RIBO.EHZ. 2022-01-17T08:36:01.85 0.1 undecidable manual P 275 36.0417 50 0.2 95
IV.SACS.HHN. 2022-01-17T08:36:01.92 0.3 undecidable manual P 103 35.2425 50 0.39 68
TV.SF11.HHE. 2022-01-17T08:36:00.72 0.3 undecidable manual S 111 16.5723 119 -0.33 72
IV.MCIV.CHZ. 2022-01-17T08:35:59.48 0.1 undecidable manual P 136 22.1556 113 0.22 97
TV.SF11.HHE. 2022-01-17T08:35:58.51 0.1 undecidable manual P 111 16.5723 119 0.25 97
IV.ARCI.HHZ. 2022-01-17T08:35:58.50 0.3 undecidable manual S 188 7.9809 139 -0.19 75
IV.ARCI.HHZ. 2022-01-17T08:35:57.08 0.1 positive manual P 188 7.9809 139 0.18 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARCI.HNN. ML:2.1 0.0019776975000000002 0.1792 AML other m 2022-01-17T08:35:58.72
IV.ARCI.HHN. ML:2.2 0.002120431 0.1792 AML other m 2022-01-17T08:35:58.72
IV.ARCI.HHE. ML:1.9 0.00132581245 0.0832 AML other m 2022-01-17T08:35:58.75
IV.ARCI.HNE. ML:1.9 0.001278206 0.192 AML other m 2022-01-17T08:35:59.59
IV.MCIV.CHN. ML:1.5 0.00022066135000000002 0.1216 AML other m 2022-01-17T08:36:03.28
IV.MCIV.CHE. ML:1.6 0.0002503025 0.1984 AML other m 2022-01-17T08:36:04.43
IV.FROS.CHN. ML:1.5 0.00009279999999999999 0.18 AML other m 2022-01-17T08:36:08.53
IV.FROS.CHE. ML:1.7 0.00015300000000000003 0.34 AML other m 2022-01-17T08:36:09.20
IV.TRIF.CHE. ML:1.6 0.0000941 0.18 AML other m 2022-01-17T08:36:11.37
IV.CASP.HHE. ML:1.0 0.000026176385 0.1856 AML other m 2022-01-17T08:36:12.27
IV.TRIF.CHN. ML:1.4 0.000062284405 0.1536 AML other m 2022-01-17T08:36:12.45
IV.CASP.HHN. ML:1.1 0.00002915 1.3 AML other m 2022-01-17T08:36:13.98
IV.CAFI.HHN. ML:0.7 0.0000103517495 0.576 AML other m 2022-01-17T08:36:15.54
IV.CAFI.HHE. ML:0.7 0.0000117821285 0.3968 AML other m 2022-01-17T08:36:16.56
IV.CASP.HNE. ML:1.7 0.0001256748 0.9984 AML other m 2022-01-17T08:36:21.32
IV.CAFI.HNE. ML:1.2 0.000034052429999999995 0.7104 AML other m 2022-01-17T08:36:22.95
IV.CASP.HNN. ML:1.7 0.00013477465 1.0752 AML other m 2022-01-17T08:36:22.52
IV.CAFI.HNN. ML:1.2 0.000036919615000000006 0.9536 AML other m 2022-01-17T08:36:27.25
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