Earthquake with magnitude of ML 0.5 on date 23-01-2022 and time 16:39:51 (Italy) in region 3 km SE Pratovecchio Stia (AR)

A magnitude ML 0.5 earthquake occured in region: 3 km SE Pratovecchio Stia (AR), on

  • 23-01-2022 15:39:51 (UTC)
  • 23-01-2022 16:39:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.7660, 11.7420 at 9 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Pratovecchio Stia AR 3 5845 5845
Castel San Niccolò AR 4 2707 8552
Poppi AR 5 6160 14712
Ortignano Raggiolo AR 9 878 15590
Bibbiena AR 10 12241 27831
Montemignaio AR 10 566 28397
Castel Focognano AR 15 3149 31546
Chitignano AR 16 899 32445
Chiusi della Verna AR 17 2023 34468
Londa FI 18 1840 36308
Talla AR 19 1062 37370
Reggello FI 19 16290 53660
Pelago FI 19 7660 61320

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NW of Arezzo (99543 inhabitants)
39 Km E of Firenze (382808 inhabitants)
45 Km E of Scandicci (50609 inhabitants)
53 Km E of Prato (191150 inhabitants)
56 Km SW of Forlì (117913 inhabitants)
58 Km SW of Cesena (96758 inhabitants)
59 Km S of Faenza (58541 inhabitants)
60 Km NE of Siena (53903 inhabitants)
65 Km S of Imola (69797 inhabitants)
69 Km E of Pistoia (90315 inhabitants)
74 Km W of Rimini (147750 inhabitants)
81 Km SW of Ravenna (159116 inhabitants)
87 Km SE of Bologna (386663 inhabitants)
90 Km NW of Perugia (166134 inhabitants)
95 Km W of Pesaro (94582 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
Reviewed
Rev100
ML 0.5 2022-01-23
15:39:51
43.7663 11.7423 9 2022-01-23
15:48:01
Sala Sismica INGV-Roma 100095401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-23 15:39:51 ± 0.08
Latitude 43.7663 ± 0.0054
Longitude 11.7423 ± 0.0050
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 100095401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 593
Semi-minor axis of confidence ellipse (meter) 381
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 191
Circular confidence region, given by single value of horizontal uncertainty (meter) 590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 159
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.31206
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 100095401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-01-23 15:48:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MSRU.HHZ. 2022-01-23T15:41:42.11 3.0 negative manual Pg 13.05 0
AC.VLO.HHZ. 2022-01-23T15:41:39.47 3.0 undecidable manual Pn 5.06 0
IX.RSF3.HHZ.02 2022-01-23T15:41:37.67 3.0 undecidable manual Sn -5.45 0
IV.GATE.HHZ. 2022-01-23T15:41:25.98 3.0 undecidable manual Sn -3.82 0
IV.MTGR.HHZ. 2022-01-23T15:41:19.59 3.0 positive manual Pn -6.01 0
IX.STN3.EHZ.02 2022-01-23T15:41:10.85 3.0 positive manual Pg 7.43 0
MN.BNI.HHZ. 2022-01-23T15:41:08.64 3.0 positive manual Pg 13.79 0
NI.VINO.HHZ. 2022-01-23T15:41:05.29 3.0 undecidable manual Sn -5.96 0
IV.MCRV.HHZ. 2022-01-23T15:40:59.12 3.0 undecidable manual Pn 1.56 0
IV.ZEN8.EHZ. 2022-01-23T15:40:54.94 3.0 undecidable manual Sg 0.7 0
IV.MNTT.EHZ. 2022-01-23T15:40:45.85 3.0 undecidable manual Sg -1.07 0
IV.CELB.HHZ. 2022-01-23T15:40:45.76 3.0 undecidable manual Sg -2.39 0
GU.RNCA.HHZ. 2022-01-23T15:40:30.47 3.0 undecidable manual Pn -0.83 0
IV.FIAM.HHZ. 2022-01-23T15:40:28.11 3.0 negative manual Pg -0.64 0
IV.PP3.EHZ. 2022-01-23T15:40:22.80 3.0 undecidable manual P 0.61 0
IV.BARO.EHZ. 2022-01-23T15:40:20.12 3.0 undecidable manual P -5.32 0
IV.SBPO.HNZ. 2022-01-23T15:40:15.64 3.0 negative manual P -4.52 0
IV.CPGN.HNZ. 2022-01-23T15:40:09.99 3.0 undecidable manual S -1.22 0
GU.POPM.HHZ. 2022-01-23T15:40:07.45 3.0 positive manual P -3.33 0
IV.BOSL.HHZ. 2022-01-23T15:40:04.05 0.3 undecidable manual S 302 34.6431 50 0.14 76
IV.LMD.HHZ. 2022-01-23T15:40:03.87 0.6 undecidable manual S 355 34.6431 50 -0.03 52
IV.RUFI.EHZ. 2022-01-23T15:39:59.34 0.6 undecidable manual S 293 20.2686 114 -0.17 51
IV.LMD.HHZ. 2022-01-23T15:39:58.60 0.1 undecidable manual P 355 34.6431 50 -0.18 100
IV.BOSL.HHZ. 2022-01-23T15:39:58.81 0.3 undecidable manual P 302 34.6431 50 0.03 77
IV.RUFI.EHZ. 2022-01-23T15:39:56.31 0.6 undecidable manual P 293 20.2686 114 0.06 53
IV.CRE.HHZ. 2022-01-23T15:39:56.77 0.3 undecidable manual P 134 23.4543 111 -0.06 78
IV.SFI.HNE. 2022-01-23T15:39:55.88 0.3 undecidable manual P 29 17.4714 118 0.13 78
IV.ASQU.HHZ. 2022-01-23T15:39:55.35 0.3 undecidable manual S 48 5.0949 151 -0.08 81
IV.ASQU.HHZ. 2022-01-23T15:39:54.06 0.3 positive manual P 48 5.0949 151 0.17 79
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHE. ML:0.9 0.00012965579999999998 0.2688 AML other m 2022-01-23T15:39:55.60
IV.ASQU.HHN. ML:1.0 0.0001848775 0.2176 AML other m 2022-01-23T15:39:55.62
IV.RUFI.EHE. ML:0.3 0.000014300880000000003 0.2176 AML other m 2022-01-23T15:39:59.58
IV.RUFI.EHN. ML:0.4 0.000019015425 0.4736 AML other m 2022-01-23T15:40:00.29
IV.CRE.HHN. ML:0.4 0.00001422242 0.192 AML other m 2022-01-23T15:40:02.37
IV.LMD.HHE. ML:0.4 0.0000105089775 0.0768 AML other m 2022-01-23T15:40:04.05
IV.LMD.HHN. ML:0.6 0.000014006882 0.1408 AML other m 2022-01-23T15:40:04.14
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