Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 26-05-2023 and time 17:40:04 (UTC) in region 5 km SE Pietralunga (PG)

A magnitude ML 1.4 earthquake occured in region: 5 km SE Pietralunga (PG), on

  • 26-05-2023 17:40:04 (UTC)
  • 26-05-2023 19:40:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4180, 12.4900 at 8 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 5 2111 2111
Gubbio PG 10 32216 34327
Cantiano PU 13 2245 36572
Montone PG 14 1680 38252
Scheggia e Pascelupo PG 15 1393 39645
Apecchio PU 17 1882 41527
Umbertide PG 18 16681 58208
Costacciaro PG 19 1216 59424
Piobbico PU 19 2029 61453
Cagli PU 19 8731 70184

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km N of Perugia (166134 inhabitants)
49 Km E of Arezzo (99543 inhabitants)
54 Km NW of Foligno (57155 inhabitants)
64 Km SW of Fano (60888 inhabitants)
65 Km SW of Pesaro (94582 inhabitants)
72 Km S of Rimini (147750 inhabitants)
82 Km S of Cesena (96758 inhabitants)
86 Km W of Ancona (100861 inhabitants)
94 Km E of Siena (53903 inhabitants)
96 Km N of Terni (111501 inhabitants)
97 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 1.4 2023-05-26
17:40:04		 43.4178 12.4895 8 2023-05-26
17:56:54		 Sala Sismica INGV-Roma 117754041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-26 17:40:04 ± 0.04
Latitude 43.4178 ± 0.0027
Longitude 12.4895 ± 0.0037
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117754041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 248
Semi-minor axis of confidence ellipse (meter) 220
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) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 36
Number of associated phases, regardless of their use for origin computation 78
Number of defining phases 77
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.61424
Number of stations at which the event was observed 40
Number of stations from which data was used for origin computation 39
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 117754041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-26 17:56:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2023-05-26T17:40:26.63 0.6 undecidable manual S 122 68.1762 50 0.76 36
IV.FDMO.HHZ. 2023-05-26T17:40:25.44 0.6 undecidable manual S 131 64.1913 50 0.63 39
IV.CING.HHZ. 2023-05-26T17:40:23.52 0.6 undecidable manual S 94 57.0984 50 0.61 39
IV.CESI.HHN. 2023-05-26T17:40:23.29 0.6 undecidable manual S 144 56.7987 50 0.46 42
IV.EL6.EHZ. 2023-05-26T17:40:21.38 0.6 undecidable manual S 101 50.3163 50 0.28 44
IV.MML1.EHZ. 2023-05-26T17:40:21.80 0.6 undecidable manual S 131 51.5151 50 0.37 43
IV.COR1.EHE. 2023-05-26T17:40:20.80 0.6 undecidable manual S 60 47.4192 50 0.47 42
IV.ASSB.HHE. 2023-05-26T17:40:19.24 0.6 undecidable manual S 162 43.8228 50 -0.12 46
IV.MMUR.HNE. 2023-05-26T17:40:18.37 0.6 undecidable manual S 86 41.0256 50 -0.24 45
IV.SNTG.HHE. 2023-05-26T17:40:18.36 0.6 undecidable manual S 116 40.626 50 -0.15 46
IV.ARVD.HHZ. 2023-05-26T17:40:17.47 0.6 undecidable manual S 76 37.4292 50 -0.2 45
IV.CSP1.EHZ. 2023-05-26T17:40:16.83 0.6 undecidable manual P 122 68.1762 50 -0.02 45
IV.PE3.EHZ. 2023-05-26T17:40:16.23 3.0 undecidable manual S 0
IV.PARC.HHN. 2023-05-26T17:40:16.38 0.6 undecidable manual S 322 32.6451 104 0.22 46
IV.CING.HHZ. 2023-05-26T17:40:15.31 0.1 undecidable manual P 94 57.0984 50 0.17 88
IV.FDMO.HHZ. 2023-05-26T17:40:15.87 0.1 undecidable manual P 131 64.1913 50 -0.36 84
IV.ATCC.HNE. 2023-05-26T17:40:15.41 0.6 undecidable manual S 155 28.5492 106 0.61 41
IV.MPAG.HNE. 2023-05-26T17:40:15.80 0.6 undecidable manual S 43 31.9458 104 -0.15 46
IV.MML1.EHZ. 2023-05-26T17:40:14.01 0.1 undecidable manual P 131 51.5151 50 -0.27 87
IV.COR1.EHE. 2023-05-26T17:40:14.43 0.1 undecidable manual P 60 47.4192 50 0.78 75
IV.CESI.HHN. 2023-05-26T17:40:14.89 0.1 undecidable manual P 144 56.7987 50 -0.2 88
IV.EL6.EHZ. 2023-05-26T17:40:13.77 0.1 undecidable manual P 101 50.3163 50 -0.32 87
IV.SSFR.HHN. 2023-05-26T17:40:13.36 0.6 undecidable manual S 85 23.6541 109 0.17 47
IV.ATMC.EHE. 2023-05-26T17:40:13.29 0.6 undecidable manual S 278 24.1536 108 -0.04 48
IV.FOSV.EHZ. 2023-05-26T17:40:13.76 0.6 undecidable manual S 122 25.8519 107 -0.13 47
IV.MMUR.HNE. 2023-05-26T17:40:12.33 0.1 undecidable manual P 86 41.0256 50 -0.33 88
IV.SNTG.HHE. 2023-05-26T17:40:12.16 0.1 undecidable manual P 116 40.626 50 -0.44 86
IV.FRON.EHE. 2023-05-26T17:40:12.65 0.6 undecidable manual S 60 22.0668 110 0 49
IV.NARO.HHE. 2023-05-26T17:40:12.62 0.6 undecidable manual S 19 22.6551 109 -0.22 46
IV.ATMI.HHE. 2023-05-26T17:40:12.30 0.6 undecidable manual S 243 20.1687 112 0.27 46
IT.UMBT.HGE. 2023-05-26T17:40:12.06 0.6 undecidable manual S 223 17.2716 115 0.95 37
IV.ASSB.HHE. 2023-05-26T17:40:12.48 0.1 undecidable manual P 162 43.8228 50 -0.61 81
IV.MURB.HHN. 2023-05-26T17:40:11.57 0.6 undecidable manual S 171 17.3715 115 0.41 45
IV.APEC.HHN. 2023-05-26T17:40:11.09 0.6 undecidable manual S 340 16.5723 116 0.19 47
IV.ARVD.HHZ. 2023-05-26T17:40:11.72 0.1 undecidable manual P 76 37.4292 50 -0.39 87
IV.PARC.HHN. 2023-05-26T17:40:10.91 0.1 undecidable manual P 322 32.6451 104 -0.33 89
IV.TSM6.DHZ.01 2023-05-26T17:40:10.12 0.6 undecidable manual S 296 13.9749 120 0.01 49
IV.ATCC.HNE. 2023-05-26T17:40:10.50 0.1 undecidable manual P 155 28.5492 106 0.05 95
IV.MPAG.HNE. 2023-05-26T17:40:10.82 0.1 undecidable manual P 43 31.9458 104 -0.3 90
IV.ATSC.EHN. 2023-05-26T17:40:10.97 0.6 undecidable manual S 87 15.873 117 0.28 46
IV.PIEI.HHN. 2023-05-26T17:40:10.27 0.6 undecidable manual S 16 13.5753 120 0.29 47
IV.ATVA.EHN. 2023-05-26T17:40:09.04 0.1 undecidable manual P 227 22.5552 109 -0.28 92
IV.FOSV.EHZ. 2023-05-26T17:40:09.75 0.1 undecidable manual P 122 25.8519 107 -0.18 93
IV.TSM3.DHZ.01 2023-05-26T17:40:09.67 0.6 undecidable manual S 250 11.4774 125 0.31 47
IV.SSFR.HHN. 2023-05-26T17:40:09.42 0.1 undecidable manual P 85 23.6541 109 -0.1 95
IV.FRON.EHE. 2023-05-26T17:40:09.17 0.1 undecidable manual P 60 22.0668 110 -0.04 97
IV.ATMC.EHE. 2023-05-26T17:40:09.44 0.1 undecidable manual P 278 24.1536 108 -0.17 94
IV.TSM1.DHN.01 2023-05-26T17:40:09.40 0.6 undecidable manual S 133 11.877 124 -0.08 49
IV.ATLO.HNN. 2023-05-26T17:40:09.88 0.6 undecidable manual S 210 13.1757 121 0.02 49
IV.NARO.HHE. 2023-05-26T17:40:09.18 0.1 undecidable manual P 19 22.6551 109 -0.15 94
IV.ATVO.HNZ. 2023-05-26T17:40:08.14 0.6 undecidable manual S 239 7.7811 136 -0.24 48
IV.ATPI.EHE. 2023-05-26T17:40:08.33 0.6 undecidable manual S 297 7.881 135 -0.09 49
IV.TB02.DHE.01 2023-05-26T17:40:08.47 0.6 undecidable manual S 231 8.2806 134 -0.05 49
IV.ATBU.HNE. 2023-05-26T17:40:08.89 0.6 undecidable manual S 36 7.9809 135 0.46 45
IV.MURB.HHN. 2023-05-26T17:40:08.51 0.1 undecidable manual P 171 17.3715 115 0.16 95
IV.APEC.HHN. 2023-05-26T17:40:08.33 0.1 undecidable manual P 340 16.5723 116 0.12 96
IV.ATPC.HHE. 2023-05-26T17:40:08.37 0.6 undecidable manual S 339 7.4814 137 0.07 49
IV.ATSC.EHN. 2023-05-26T17:40:08.26 0.1 undecidable manual P 87 15.873 117 0.18 95
IV.ATFO.HNE. 2023-05-26T17:40:08.29 0.6 undecidable manual S 131 8.6802 132 -0.33 47
IV.ATMI.HHE. 2023-05-26T17:40:08.85 0.1 undecidable manual P 243 20.1687 112 0 98
IT.UMBT.HGE. 2023-05-26T17:40:08.72 0.1 undecidable manual P 223 17.2716 115 0.39 91
IV.TB01.DHE.01 2023-05-26T17:40:07.71 0.3 undecidable manual S 227 5.8941 143 -0.25 71
IV.TSM1.DHN.01 2023-05-26T17:40:07.37 0.1 undecidable manual P 133 11.877 124 -0.01 99
IV.PIEI.HHN. 2023-05-26T17:40:07.85 0.1 undecidable manual P 16 13.5753 120 0.18 95
IV.ATLO.HNN. 2023-05-26T17:40:07.73 0.1 undecidable manual P 210 13.1757 121 0.13 96
IV.TSM6.DHZ.01 2023-05-26T17:40:07.78 0.1 undecidable manual P 296 13.9749 120 0.04 98
IV.ATBU.HNE. 2023-05-26T17:40:07.04 0.1 undecidable manual P 36 7.9809 135 0.26 95
IV.TB03.DH2.01 2023-05-26T17:40:07.88 0.6 undecidable manual S 254 6.5934 140 -0.24 48
IV.TSM3.DHZ.01 2023-05-26T17:40:07.46 0.1 undecidable manual P 250 11.4774 125 0.14 96
IV.ATFO.HNE. 2023-05-26T17:40:06.86 0.1 undecidable manual P 131 8.6802 132 -0.03 99
IV.TB03.DH2.01 2023-05-26T17:40:06.58 0.1 undecidable manual P 254 6.5934 140 -0.02 100
IV.TSM2.DHZ.01 2023-05-26T17:40:06.50 0.6 undecidable manual S 179 2.3976 163 -0.9 38
IV.ATVO.HNZ. 2023-05-26T17:40:06.74 0.1 undecidable manual P 239 7.7811 136 -0.01 100
IV.ATPI.EHE. 2023-05-26T17:40:06.82 0.1 undecidable manual P 297 7.881 135 0.05 99
IV.TB01.DHE.01 2023-05-26T17:40:06.50 0.1 undecidable manual P 227 5.8941 143 -0.01 100
IV.TB02.DHE.01 2023-05-26T17:40:06.86 0.1 undecidable manual P 231 8.2806 134 0.03 99
IV.ATPC.HHE. 2023-05-26T17:40:06.84 0.1 undecidable manual P 339 7.4814 137 0.14 97
IV.TSM2.DHZ.01 2023-05-26T17:40:05.90 0.1 undecidable manual P 179 2.3976 163 -0.29 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.EHE. ML:1.5 0.00007685 0.38 AML other m 2023-05-26T17:40:22.98
IV.MML1.EHN. ML:1.4 0.00006745000000000001 0.78 AML other m 2023-05-26T17:40:23.51
IV.CING.HHE. ML:1.4 0.00006115000000000001 0.42 AML other m 2023-05-26T17:40:24.93
IV.CING.HHN. ML:1.4 0.00006235 0.8 AML other m 2023-05-26T17:40:24.58
IV.FDMO.HHN. ML:1.5 0.000054800000000000004 0.18 AML other m 2023-05-26T17:40:25.90
IV.FDMO.HHE. ML:1.3 0.0000332 0.14 AML other m 2023-05-26T17:40:27.37
IV.CESX.HHE. ML:1.5 0.00004035 0.42 AML other m 2023-05-26T17:40:37.64
IV.CESX.HHN. ML:1.5 0.000039699999999999996 0.38 AML other m 2023-05-26T17:40:37.64
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