Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 01-04-2023 and time 21:42:57 (Italy) in region 3 km NW Pietralunga (PG)

A magnitude ML 1.6 earthquake occured in region: 3 km NW Pietralunga (PG), on

  • 01-04-2023 19:42:57 (UTC)
  • 01-04-2023 21:42:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4650, 12.4190 at 8 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
Pietralunga PG 3 2111 2111
Apecchio PU 11 1882 3993
Montone PG 13 1680 5673
Città di Castello PG 15 39913 45586
Piobbico PU 16 2029 47615
Cantiano PU 17 2245 49860
Gubbio PG 18 32216 82076
Umbertide PG 19 16681 98757

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km N of Perugia (166134 inhabitants)
43 Km E of Arezzo (99543 inhabitants)
61 Km NW of Foligno (57155 inhabitants)
64 Km SW of Pesaro (94582 inhabitants)
64 Km SW of Fano (60888 inhabitants)
67 Km S of Rimini (147750 inhabitants)
76 Km S of Cesena (96758 inhabitants)
89 Km E of Siena (53903 inhabitants)
90 Km SE of Forlì (117913 inhabitants)
90 Km W of Ancona (100861 inhabitants)
100 Km E of Firenze (382808 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 1.6 2023-04-01
19:42:57		 43.465 12.4192 8 2024-03-01
17:18:04		 Bollettino Sismico Italiano INGV 116610861
Reviewed
Rev100 		ML 1.5 2023-04-01
19:42:57		 43.4667 12.4287 6 2023-04-01
19:51:59		 Sala Sismica INGV-Roma 115955661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-01 19:42:57 ± 0.04
Latitude 43.4650 ± 0.0018
Longitude 12.4192 ± 0.0025
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116610861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 240
Semi-minor axis of confidence ellipse (meter) 88
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 49
Circular confidence region, given by single value of horizontal uncertainty (meter) 240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 28
Number of associated phases, regardless of their use for origin computation 71
Number of defining phases 71
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.01889
Epicentral distance of station farthest from the epicenter (degree) 0.80939
Number of stations at which the event was observed 40
Number of stations from which data was used for origin computation 40
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 116610861
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-22 12:59:25

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 61
Type of magnitude ML
Reference to an origin 115955661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-01 19:51:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2023-04-01T19:43:20.28 0.3 undecidable manual S 131 71.9724 50 0.63 57
IV.CING.HHZ. 2023-04-01T19:43:18.25 0.6 undecidable manual S 99 63.2922 50 0.89 35
IV.EL6.EHZ. 2023-04-01T19:43:16.31 0.3 undecidable manual S 105 56.9985 50 0.63 59
IV.MML1.EHZ. 2023-04-01T19:43:16.77 0.3 undecidable manual S 131 59.2962 50 0.5 62
IV.ASSB.HHZ. 2023-04-01T19:43:14.32 0.3 undecidable manual S 157 50.7159 50 0.34 65
IV.SNTG.HHZ. 2023-04-01T19:43:13.49 0.3 undecidable manual S 119 48.1185 50 0.21 67
IV.NRCA.HHZ. 2023-04-01T19:43:12.90 0.6 negative manual P 141 89.8434 50 -0.03 43
IV.CRE.HHZ. 2023-04-01T19:43:11.32 0.3 undecidable manual S 295 41.3253 50 -0.15 69
IV.CSP1.EHZ. 2023-04-01T19:43:10.69 1.0 undecidable manual P 123 75.7686 50 -0.07 22
IV.ATCC.EHZ. 2023-04-01T19:43:10.08 0.3 undecidable manual S 150 35.8419 102 0.19 69
IV.CAFI.HHZ. 2023-04-01T19:43:10.71 0.6 undecidable manual S 248 39.5271 50 -0.28 45
IV.FDMO.HHZ. 2023-04-01T19:43:09.85 0.1 undecidable manual P 131 71.9724 50 -0.31 84
IV.FOSV.EHZ. 2023-04-01T19:43:09.30 0.3 undecidable manual S 124 33.4443 103 0.21 69
IV.MGAB.HHZ. 2023-04-01T19:43:09.11 0.1 undecidable manual P 202 66.0894 50 -0.16 87
IV.CING.HHZ. 2023-04-01T19:43:08.69 0.1 undecidable manual P 99 63.2922 50 -0.15 88
IV.CESI.HHZ. 2023-04-01T19:43:08.81 0.1 undecidable manual P 142 64.3911 50 -0.19 87
IV.MPAG.EHZ. 2023-04-01T19:43:08.83 0.3 undecidable manual S 56 32.8449 103 -0.08 71
IV.EL6.EHZ. 2023-04-01T19:43:07.41 0.1 undecidable manual P 105 56.9985 50 -0.46 83
IV.MML1.EHZ. 2023-04-01T19:43:07.88 0.1 undecidable manual P 131 59.2962 50 -0.33 85
IV.SSFR.HHZ. 2023-04-01T19:43:07.53 0.6 undecidable manual S 96 29.4483 104 -0.2 46
IV.PE3.EHE. 2023-04-01T19:43:07.70 0.6 undecidable manual S 14 26.3514 106 0.99 36
IV.PARC.HHZ. 2023-04-01T19:43:06.73 0.3 undecidable manual S 325 25.0527 107 0.46 66
IV.SSP9.EHZ. 2023-04-01T19:43:06.64 0.6 undecidable manual S 298 26.1516 106 0.01 48
IV.SNTG.HHZ. 2023-04-01T19:43:06.32 0.3 undecidable manual P 119 48.1185 50 -0.17 68
IV.MURB.HHZ. 2023-04-01T19:43:06.30 0.6 undecidable manual S 159 23.9538 107 0.38 45
IV.ASSB.HHZ. 2023-04-01T19:43:06.61 0.1 undecidable manual P 157 50.7159 50 -0.28 88
IV.FRON.EHZ. 2023-04-01T19:43:06.47 0.3 undecidable manual S 77 25.3524 106 0.09 72
IV.ATVA.EHE. 2023-04-01T19:43:05.56 0.3 undecidable manual S 208 23.3544 108 -0.14 71
IV.CRE.HHZ. 2023-04-01T19:43:05.14 0.1 undecidable manual P 295 41.3253 50 -0.3 89
IV.CPGN.EHZ. 2023-04-01T19:43:05.31 0.1 undecidable manual P 348 38.1285 50 0.36 88
IV.ATSC.EHE. 2023-04-01T19:43:05.41 0.3 undecidable manual S 102 21.9669 109 0.14 71
IV.CAFI.HHZ. 2023-04-01T19:43:04.76 0.1 undecidable manual P 248 39.5271 50 -0.41 87
IV.ATMI.HHZ. 2023-04-01T19:43:04.70 0.3 undecidable manual S 220 18.9699 112 0.43 67
IV.NARO.HHZ. 2023-04-01T19:43:04.80 0.3 undecidable manual S 39 20.7681 110 -0.06 73
IV.ATCC.EHZ. 2023-04-01T19:43:04.26 0.1 undecidable manual P 150 35.8419 102 -0.27 90
IV.MPAG.EHZ. 2023-04-01T19:43:03.56 0.1 undecidable manual P 56 32.8449 103 -0.4 88
IV.PE3.EHE. 2023-04-01T19:43:03.05 0.1 undecidable manual P 14 26.3514 106 0.35 90
IV.ATLO.EHE. 2023-04-01T19:43:03.61 0.6 undecidable manual S 183 16.6722 114 0.07 49
IV.FOSV.EHZ. 2023-04-01T19:43:03.78 0.1 undecidable manual P 124 33.4443 103 -0.28 90
IV.ATFO.HHZ. 2023-04-01T19:43:03.52 0.6 undecidable manual S 132 16.4724 115 0.05 49
IV.MURB.HHZ. 2023-04-01T19:43:02.15 0.1 undecidable manual P 159 23.9538 107 -0.09 96
IV.SSFR.HHZ. 2023-04-01T19:43:02.87 0.1 undecidable manual P 96 29.4483 104 -0.42 88
IV.FRON.EHZ. 2023-04-01T19:43:02.20 0.1 undecidable manual P 77 25.3524 106 -0.3 91
IV.PARC.HHZ. 2023-04-01T19:43:02.32 0.1 undecidable manual P 325 25.0527 107 -0.11 95
IV.ATVA.EHE. 2023-04-01T19:43:02.48 0.6 undecidable manual P 208 23.3544 108 0.37 45
IV.APEC.HHZ. 2023-04-01T19:43:02.02 0.3 undecidable manual S 0 10.3785 126 0.38 69
IV.SSP9.EHZ. 2023-04-01T19:43:02.45 0.1 undecidable manual P 298 26.1516 106 -0.19 93
IV.ATBU.EHZ. 2023-04-01T19:43:02.00 0.6 undecidable manual S 83 10.4784 126 0.33 47
IV.ATSC.EHE. 2023-04-01T19:43:01.73 0.1 undecidable manual P 102 21.9669 109 -0.13 95
IV.TB01.DHZ. 2023-04-01T19:43:01.39 0.3 undecidable manual S 172 9.3795 129 0.03 74
IV.CDCA.HNZ. 2023-04-01T19:43:01.55 0.6 undecidable manual P 267 14.9739 117 0.99 36
IV.TSM2.DHN.01 2023-04-01T19:43:01.26 0.3 undecidable manual S 143 9.4794 128 -0.15 73
IV.ATMI.HHZ. 2023-04-01T19:43:01.38 0.1 undecidable manual P 220 18.9699 112 0.1 96
IV.NARO.HHZ. 2023-04-01T19:43:01.42 0.1 undecidable manual P 39 20.7681 110 -0.2 94
IV.ATVO.HHN. 2023-04-01T19:43:01.50 0.3 undecidable manual S 186 9.2796 129 0.16 72
IV.ATMC.EHE. 2023-04-01T19:43:01.24 0.1 undecidable manual P 264 18.3705 112 0.07 97
IV.ATFO.HHZ. 2023-04-01T19:43:00.71 0.1 undecidable manual P 132 16.4724 115 -0.11 96
IV.TB02.DHZ. 2023-04-01T19:43:00.00 0.1 undecidable manual P 184 10.4784 125 0.21 95
IV.TB03.DHZ. 2023-04-01T19:43:00.88 0.3 undecidable manual S 186 7.0929 137 0.1 74
IV.ATLO.EHE. 2023-04-01T19:43:00.89 0.1 undecidable manual P 183 16.6722 114 0.03 98
IV.APEC.HHZ. 2023-04-01T19:42:59.91 0.1 undecidable manual P 0 10.3785 126 0.14 97
IV.TB03.DHZ. 2023-04-01T19:42:59.28 0.1 undecidable manual P 186 7.0929 137 0.01 100
IV.ATBU.EHZ. 2023-04-01T19:42:59.98 0.1 undecidable manual P 83 10.4784 126 0.19 96
IV.ATVO.HHN. 2023-04-01T19:42:59.75 0.1 undecidable manual P 186 9.2796 129 0.16 97
IV.TSM3.DH2. 2023-04-01T19:42:59.92 0.1 undecidable manual P 209 10.4784 126 0.14 97
IV.ATPI.EHZ. 2023-04-01T19:42:59.24 0.6 undecidable manual S 221 2.0979 164 -0.66 43
IV.TB01.DHZ. 2023-04-01T19:42:59.64 0.1 undecidable manual P 172 9.3795 129 0.04 99
IV.ATPC.HHE. 2023-04-01T19:42:59.67 0.6 undecidable manual S 60 3.4965 155 -0.41 46
IV.TSM2.DHN.01 2023-04-01T19:42:59.57 0.1 undecidable manual P 143 9.4794 128 -0.06 99
IV.ATPC.HHE. 2023-04-01T19:42:58.72 0.1 undecidable manual P 60 3.4965 155 -0.14 98
IV.ATPI.EHZ. 2023-04-01T19:42:58.48 0.1 undecidable manual P 221 2.0979 164 -0.29 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.APEC.HHE. ML:1.7 0.0007754999999999999 0.2 AML other m 2023-04-01T19:43:03.80
IV.ATFO.HHE. ML:1.8 0.0006765 1.38 AML other m 2023-04-01T19:43:03.21
IV.APEC.HHN. ML:1.7 0.0006825 1.46 AML other m 2023-04-01T19:43:04.00
IV.ATFO.HHN. ML:1.6 0.000354 0.74 AML other m 2023-04-01T19:43:04.93
IV.NARO.HHE. ML:1.3 0.00014050000000000003 0.28 AML other m 2023-04-01T19:43:05.83
IV.NARO.HHN. ML:1.2 0.000115 0.16 AML other m 2023-04-01T19:43:05.90
IV.MURB.HHE. ML:2.1 0.000823 0.28 AML other m 2023-04-01T19:43:06.97
IV.PARC.HHN. ML:1.4 0.0001545 0.58 AML other m 2023-04-01T19:43:07.51
IV.SSFR.HNN. ML:1.8 0.00036150000000000006 0.78 AML other m 2023-04-01T19:43:07.32
IV.FRON.EHN. ML:1.4 0.0001605 1.22 AML other m 2023-04-01T19:43:08.85
IV.SSFR.HNE. ML:1.8 0.000356 0.56 AML other m 2023-04-01T19:43:08.46
IV.SSFR.HHE. ML:1.8 0.0003255 0.3 AML other m 2023-04-01T19:43:08.47
IV.SSFR.HHN. ML:1.7 0.000262 0.14 AML other m 2023-04-01T19:43:09.11
IV.PARC.HHE. ML:1.5 0.0001995 0.6 AML other m 2023-04-01T19:43:09.73
IV.MURB.HHN. ML:1.9 0.0005415 0.94 AML other m 2023-04-01T19:43:09.48
IV.ATMI.HHN. ML:1.5 0.0002595 0.52 AML other m 2023-04-01T19:43:10.31
IV.FRON.EHE. ML:1.2 0.00010139999999999998 0.58 AML other m 2023-04-01T19:43:10.39
IV.ATCC.EHE. ML:1.9 0.000347 1.04 AML other m 2023-04-01T19:43:10.40
IV.MPAG.EHE. ML:1.0 0.00005005 0.54 AML other m 2023-04-01T19:43:11.32
IV.CAFI.HHE. ML:1.2 0.0000523 1.34 AML other m 2023-04-01T19:43:11.83
IV.CRE.HHN. ML:1.3 0.00006634999999999999 0.26 AML other m 2023-04-01T19:43:12.07
IV.CRE.HHE. ML:1.2 0.000062 0.7 AML other m 2023-04-01T19:43:12.27
IV.ATMI.HHE. ML:1.7 0.0004235 0.42 AML other m 2023-04-01T19:43:12.11
IV.CAFI.HHN. ML:1.2 0.000050600000000000003 0.76 AML other m 2023-04-01T19:43:12.70
IV.ATCC.EHN. ML:1.6 0.000154 0.64 AML other m 2023-04-01T19:43:12.52
IV.FOSV.EHN. ML:1.4 0.00009764999999999999 0.5 AML other m 2023-04-01T19:43:13.15
IV.SNTG.HHE. ML:1.6 0.00010664999999999999 0.22 AML other m 2023-04-01T19:43:13.86
IV.SNTG.HHN. ML:1.7 0.00014050000000000003 1.74 AML other m 2023-04-01T19:43:13.90
IV.FOSV.EHE. ML:1.3 0.00008499999999999999 0.96 AML other m 2023-04-01T19:43:14.22
IV.EL6.EHN. ML:1.8 0.00013245000000000002 0.46 AML other m 2023-04-01T19:43:16.62
IV.EL6.EHE. ML:1.7 0.00010614999999999999 1.32 AML other m 2023-04-01T19:43:16.66
IV.MPAG.EHN. ML:1.0 0.000047 0.68 AML other m 2023-04-01T19:43:16.59
IV.MML1.EHN. ML:1.5 0.00007055000000000001 0.28 AML other m 2023-04-01T19:43:17.23
IV.MML1.EHE. ML:1.5 0.0000642 0.56 AML other m 2023-04-01T19:43:19.37
IV.FDMO.HHE. ML:1.3 0.000033600000000000004 0.16 AML other m 2023-04-01T19:43:20.85
IV.CSP1.EHN. ML:2.0 0.0001336 0.68 AML other m 2023-04-01T19:43:21.64
IV.CSP1.EHE. ML:1.9 0.00012285 1.54 AML other m 2023-04-01T19:43:22.78
IV.MGAB.HHE. ML:1.6 0.0000663 1.62 AML other m 2023-04-01T19:43:23.08
IV.FDMO.HHN. ML:1.4 0.00003755 0.56 AML other m 2023-04-01T19:43:23.49
IV.MGAB.HHN. ML:1.7 0.00009015000000000001 0.76 AML other m 2023-04-01T19:43:23.63
IV.NRCA.HHN. ML:1.4 0.0000293 0.16 AML other m 2023-04-01T19:43:26.89
IV.NRCA.HHE. ML:1.4 0.000032500000000000004 0.14 AML other m 2023-04-01T19:43:27.49
IV.SRES.HHE. ML:1.9 0.000049600000000000006 0.42 AML other m 2023-04-01T19:43:39.57
IV.SRES.HHN. ML:1.8 0.000040900000000000005 0.42 AML other m 2023-04-01T19:43:58.75
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