Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 11-08-2022 and time 03:28:33 (Italy) in region 1 km N Pietralunga (PG)

A magnitude ML 1.2 earthquake occured in region: 1 km N Pietralunga (PG), on

  • 11-08-2022 01:28:33 (UTC)
  • 11-08-2022 03:28:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4550, 12.4350 at 7 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.

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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
Pietralunga PG 1 2111 2111
Apecchio PU 12 1882 3993
Montone PG 13 1680 5673
Cantiano PU 16 2245 7918
Città di Castello PG 16 39913 47831
Gubbio PG 16 32216 80047
Piobbico PU 16 2029 82076
Umbertide PG 19 16681 98757
Scheggia e Pascelupo PG 20 1393 100150

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km N of Perugia (166134 inhabitants)
45 Km E of Arezzo (99543 inhabitants)
60 Km NW of Foligno (57155 inhabitants)
64 Km SW of Pesaro (94582 inhabitants)
64 Km SW of Fano (60888 inhabitants)
68 Km S of Rimini (147750 inhabitants)
78 Km S of Cesena (96758 inhabitants)
89 Km W of Ancona (100861 inhabitants)
90 Km E of Siena (53903 inhabitants)
91 Km SE of Forlì (117913 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 1.2 2022-08-11
01:28:33		 43.4548 12.4352 7 2022-08-11
01:34:34		 Sala Sismica INGV-Roma 108393971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-11 01:28:33 ± 0.13
Latitude 43.4548 ± 0.0027
Longitude 12.4352 ± 0.0050
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 108393971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 378
Semi-minor axis of confidence ellipse (meter) 239
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 103
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18796
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 108393971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-11 01:34:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2022-08-11T01:28:56.93 3.0 undecidable manual S 0.07 0
IV.LMD.HHZ. 2022-08-11T01:28:51.18 3.0 undecidable manual P 1.95 0
IV.EL6.EHZ. 2022-08-11T01:28:51.42 3.0 undecidable manual S 0.13 0
IV.EL6.EHZ. 2022-08-11T01:28:43.31 3.0 negative manual P 0.07 0
IV.ASSB.HHZ. 2022-08-11T01:28:42.48 3.0 undecidable manual P 0.22 0
IV.NARO.HHZ. 2022-08-11T01:28:40.50 0.3 undecidable manual S 34 20.868 109 -0.3 69
IV.ARVD.HHZ. 2022-08-11T01:28:40.75 3.0 positive manual P -0.06 0
IV.FRON.EHZ. 2022-08-11T01:28:40.10 3.0 undecidable manual P 2.08 0
IV.CAFI.HHZ. 2022-08-11T01:28:40.77 3.0 positive manual P -0.17 0
IV.ATCC.EHZ. 2022-08-11T01:28:39.90 3.0 negative manual P 0.16 0
IV.MPAG.EHZ. 2022-08-11T01:28:39.37 3.0 negative manual P 0 0
IV.PARC.HHZ. 2022-08-11T01:28:38.70 3.0 positive manual P 0.13 0
IV.APEC.HHZ. 2022-08-11T01:28:38.16 0.1 undecidable manual S 354 11.5773 122 0.31 93
IV.SSFR.HHZ. 2022-08-11T01:28:38.54 3.0 undecidable manual P -0.09 0
IV.ATFO.HHZ. 2022-08-11T01:28:38.86 0.1 undecidable manual S 132 14.6742 116 0.04 98
IV.SSP9.EHZ. 2022-08-11T01:28:38.85 3.0 undecidable manual P 0.04 0
IV.ATMI.HHZ. 2022-08-11T01:28:37.20 3.0 positive manual P -0.12 0
IV.ATBU.EHZ. 2022-08-11T01:28:37.62 0.1 undecidable manual S 76 9.3795 127 0.39 92
IV.ATVO.HHZ. 2022-08-11T01:28:37.06 0.1 undecidable manual S 196 8.3805 130 0.1 98
IV.NARO.HHZ. 2022-08-11T01:28:37.29 0.1 undecidable manual P 34 20.868 109 -0.28 92
IV.ATSC.EHZ. 2022-08-11T01:28:37.35 0.1 undecidable manual P 100 20.5683 109 -0.15 95
IV.MURB.HHZ. 2022-08-11T01:28:37.90 3.0 negative manual P 0.09 0
IV.TSM2.DHZ. 2022-08-11T01:28:36.63 0.3 undecidable manual S 146 7.881 132 -0.19 72
IV.ATFO.HHZ. 2022-08-11T01:28:36.27 0.1 undecidable manual P 132 14.6742 116 -0.15 96
IV.TB01.DHZ. 2022-08-11T01:28:36.92 0.3 undecidable manual S 180 8.0808 131 0.03 74
IV.BADI.EHZ. 2022-08-11T01:28:36.74 3.0 undecidable manual P -0.13 0
IV.TB03.DHZ.01 2022-08-11T01:28:36.59 0.3 undecidable manual S 199 6.2937 139 0.16 73
IV.APEC.HHZ. 2022-08-11T01:28:36.00 0.1 positive manual P 354 11.5773 122 0.14 96
IV.ATPI.EHZ. 2022-08-11T01:28:35.45 0.1 undecidable manual S 260 2.6973 159 -0.33 94
IV.TB03.DHZ.01 2022-08-11T01:28:35.09 0.1 undecidable manual P 199 6.2937 139 0.05 99
IV.TSM2.DHZ. 2022-08-11T01:28:35.23 0.1 undecidable manual P 146 7.881 132 -0.04 99
IV.ATPC.HHZ. 2022-08-11T01:28:35.74 0.1 undecidable manual S 31 3.3966 155 -0.13 98
IV.ATBU.EHZ. 2022-08-11T01:28:35.69 0.1 undecidable manual P 76 9.3795 127 0.18 96
IV.TB01.DHZ. 2022-08-11T01:28:35.37 0.1 undecidable manual P 180 8.0808 131 0.06 98
IV.ATVO.HHZ. 2022-08-11T01:28:35.43 0.1 undecidable manual P 196 8.3805 130 0.08 98
IV.ATPI.EHZ. 2022-08-11T01:28:34.61 0.1 undecidable manual P 260 2.6973 159 -0.06 99
IV.ATPC.HHZ. 2022-08-11T01:28:34.74 0.1 undecidable manual P 31 3.3966 155 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHE. ML:1.5 0.0005455000000000001 0.16 AML other m 2022-08-11T01:28:37.22
IV.ATVO.HHN. ML:1.4 0.00041349999999999997 0.18 AML other m 2022-08-11T01:28:37.22
IV.APEC.HHN. ML:1.3 0.0002895 0.22 AML other m 2022-08-11T01:28:38.22
IV.APEC.HHE. ML:1.4 0.0003085 0.16 AML other m 2022-08-11T01:28:38.43
IV.ATFO.HHN. ML:1.0 0.00010685 0.58 AML other m 2022-08-11T01:28:39.03
IV.ATFO.HHE. ML:1.1 0.000141 0.58 AML other m 2022-08-11T01:28:39.04
IV.BADI.EHE. ML:1.4 0.00021700000000000002 0.12 AML other m 2022-08-11T01:28:39.89
IV.BADI.EHN. ML:1.2 0.000151 1.1 AML other m 2022-08-11T01:28:40.88
IV.NARO.HHE. ML:1.0 0.00007235 0.06 AML other m 2022-08-11T01:28:41.36
IV.ATMI.HHE. ML:1.1 0.00009845000000000001 0.22 AML other m 2022-08-11T01:28:41.49
IV.MURB.HHN. ML:1.3 0.0001235 0.72 AML other m 2022-08-11T01:28:41.43
IV.MURB.HHE. ML:1.4 0.000189 1 AML other m 2022-08-11T01:28:41.96
IV.NARO.HHN. ML:0.9 0.0000539 0.7 AML other m 2022-08-11T01:28:42.22
IV.ATMI.HHN. ML:1.0 0.0000897 0.46 AML other m 2022-08-11T01:28:43.19
IV.SSFR.HHN. ML:1.2 0.00009384999999999999 0.5 AML other m 2022-08-11T01:28:43.67
IV.SSFR.HHE. ML:1.2 0.00009190000000000001 0.5 AML other m 2022-08-11T01:28:44.34
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