Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 29-12-2022 and time 01:25:34 (Italy) in region 8 km E Pieve Santo Stefano (AR)

A magnitude ML 0.8 earthquake occured in region: 8 km E Pieve Santo Stefano (AR), on

  • 29-12-2022 00:25:34 (UTC)
  • 29-12-2022 01:25:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6430, 12.1340 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
Pieve Santo Stefano AR 8 3183 3183
Sansepolcro AR 8 15884 19067
Badia Tedalda AR 8 1087 20154
San Giustino PG 11 11297 31451
Caprese Michelangelo AR 12 1426 32877
Anghiari AR 13 5638 38515
Borgo Pace PU 13 606 39121
Sestino AR 15 1355 40476
Citerna PG 16 3531 44007
Mercatello sul Metauro PU 16 1378 45385
Casteldelci RN 17 407 45792
Chiusi della Verna AR 17 2023 47815
Monterchi AR 18 1757 49572
Verghereto FC 20 1907 51479

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NE of Arezzo (99543 inhabitants)
56 Km S of Cesena (96758 inhabitants)
58 Km SW of Rimini (147750 inhabitants)
63 Km NW of Perugia (166134 inhabitants)
65 Km S of Forlì (117913 inhabitants)
69 Km W of Pesaro (94582 inhabitants)
72 Km E of Firenze (382808 inhabitants)
74 Km E of Siena (53903 inhabitants)
74 Km S of Faenza (58541 inhabitants)
75 Km W of Fano (60888 inhabitants)
78 Km E of Scandicci (50609 inhabitants)
86 Km SE of Imola (69797 inhabitants)
86 Km S of Ravenna (159116 inhabitants)
87 Km E of Prato (191150 inhabitants)
89 Km NW 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 0.8 2022-12-29
00:25:34		 43.643 12.1342 10 2024-03-01
15:28:27		 Bollettino Sismico Italiano INGV 118557511
Reviewed
Rev100 		ML 1.4 2022-12-29
00:25:33		 43.6557 12.1362 10 2022-12-29
00:34:03		 Sala Sismica INGV-Roma 113152941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-12-29 00:25:34 ± 0.07
Latitude 43.6430 ± 0.0045
Longitude 12.1342 ± 0.0050
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 118557511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 547
Semi-minor axis of confidence ellipse (meter) 389
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 196
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.06925
Epicentral distance of station farthest from the epicenter (degree) 0.51261
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 118557511
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-19 12:44:59

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 113152941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-12-29 00:34:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SFI.EHE. 2022-12-29T00:25:46.62 0.6 undecidable manual S 322 37.0296 50 0.04 48
IV.PE3.EHZ. 2022-12-29T00:25:45.16 0.6 undecidable manual S 78 29.6481 50 0.55 44
IV.ATPC.HNZ. 2022-12-29T00:25:45.39 0.6 undecidable manual S 125 31.5462 50 0.26 47
IV.SSFR.HHZ. 2022-12-29T00:25:43.70 0.3 undecidable manual P 114 56.8986 50 -0.65 59
IV.FRON.EHZ. 2022-12-29T00:25:43.03 0.6 undecidable manual P 106 49.5171 50 -0.18 46
IV.APEC.HHZ. 2022-12-29T00:25:43.70 0.6 undecidable manual S 112 24.753 50 0.38 46
IV.ATMC.EHZ. 2022-12-29T00:25:42.20 0.6 undecidable manual S 168 22.2555 115 -0.35 46
IV.CAFI.HHZ. 2022-12-29T00:25:41.50 0.1 undecidable manual P 201 37.3293 50 0.17 95
IV.SFI.EHE. 2022-12-29T00:25:41.01 0.3 undecidable manual P 322 37.0296 50 -0.28 68
IV.ATVO.HHZ. 2022-12-29T00:25:41.25 0.3 undecidable manual P 143 36.3414 50 0.08 72
IV.BADI.EHZ. 2022-12-29T00:25:40.98 0.6 undecidable manual S 149 17.2716 121 -0.02 50
IV.ATPC.HNZ. 2022-12-29T00:25:40.30 0.3 undecidable manual P 125 31.5462 50 -0.14 71
IV.PE3.EHZ. 2022-12-29T00:25:40.42 0.1 undecidable manual P 78 29.6481 50 0.27 93
IV.NARO.HHZ. 2022-12-29T00:25:40.96 0.3 undecidable manual P 96 36.0417 50 -0.17 70
IV.CRE.HHZ. 2022-12-29T00:25:40.38 0.6 undecidable manual S 260 14.874 124 0.07 50
IV.PIEI.HHZ. 2022-12-29T00:25:40.67 0.1 undecidable manual P 110 34.3434 50 -0.2 93
IV.APEC.HHZ. 2022-12-29T00:25:39.51 0.3 undecidable manual P 112 24.753 50 0.11 73
IV.PARC.HHZ. 2022-12-29T00:25:38.37 0.3 undecidable manual S 86 8.3805 141 -0.27 74
IV.BADI.EHZ. 2022-12-29T00:25:38.15 0.1 undecidable manual P 149 17.2716 121 0.09 98
IV.SSP9.EHZ. 2022-12-29T00:25:38.55 0.6 undecidable manual S 182 7.6812 143 0.07 50
IV.ATMC.EHZ. 2022-12-29T00:25:38.85 0.1 undecidable manual P 168 22.2555 115 -0.11 98
IV.CRE.HHZ. 2022-12-29T00:25:37.76 0.1 undecidable manual P 260 14.874 124 0.09 99
IV.PARC.HHZ. 2022-12-29T00:25:36.75 0.1 undecidable manual P 86 8.3805 141 0.05 100
IV.SSP9.EHZ. 2022-12-29T00:25:36.78 0.1 undecidable manual P 182 7.6812 143 0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PARC.HHN. ML:1.5 0.0004615 0.06 AML other m 2022-12-29T00:25:38.43
IV.PARC.HHE. ML:1.3 0.00027549875000000004 0.16 AML other m 2022-12-29T00:25:38.57
IV.BADI.EHN. ML:0.7 0.000038915765 0.08 AML other m 2022-12-29T00:25:41.07
IV.BADI.EHE. ML:0.8 0.0000549056 0.08 AML other m 2022-12-29T00:25:41.35
IV.CRE.HHE. ML:0.6 0.000037307015 0.2 AML other m 2022-12-29T00:25:40.60
IV.CRE.HHN. ML:0.8 0.00006105695 0.16 AML other m 2022-12-29T00:25:40.58
IV.PE3.EHN. ML:1.0 0.00004967816 0.32 AML other m 2022-12-29T00:25:45.76
IV.PIEI.HHE. ML:0.8 0.00002562598 0.16 AML other m 2022-12-29T00:25:46.39
IV.NARO.HHN. ML:0.7 0.000020921385 0.06 AML other m 2022-12-29T00:25:46.67
IV.PIEI.HHN. ML:0.4 0.0000091261052605 0.1 AML other m 2022-12-29T00:25:46.16
IV.ATVO.HHN. ML:0.7 0.000020190969 0.16 AML other m 2022-12-29T00:25:47.78
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