Earthquake with magnitude of ML 0.5 on date 26-05-2023 and time 17:37:20 (UTC) in region 6 km SE Pietralunga (PG)

A magnitude ML 0.5 earthquake occured in region: 6 km SE Pietralunga (PG), on

  • 26-05-2023 17:37:20 (UTC)
  • 26-05-2023 19:37:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4100, 12.4920 at 4 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
Pietralunga PG 6 2111 2111
Gubbio PG 9 32216 34327
Cantiano PU 13 2245 36572
Montone PG 14 1680 38252
Scheggia e Pascelupo PG 14 1393 39645
Umbertide PG 18 16681 56326
Apecchio PU 18 1882 58208
Costacciaro PG 19 1216 59424
Cagli PU 20 8731 68155

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km N of Perugia (166134 inhabitants)
50 Km E of Arezzo (99543 inhabitants)
53 Km NW of Foligno (57155 inhabitants)
64 Km SW of Fano (60888 inhabitants)
65 Km SW of Pesaro (94582 inhabitants)
73 Km S of Rimini (147750 inhabitants)
83 Km S of Cesena (96758 inhabitants)
86 Km W of Ancona (100861 inhabitants)
94 Km E of Siena (53903 inhabitants)
95 Km N of Terni (111501 inhabitants)
98 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 0.5 2023-05-26
17:37:20
43.4095 12.4922 4 2023-05-26
17:48:03
Sala Sismica INGV-Roma 117753881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-26 17:37:20 ± 0.09
Latitude 43.4095 ± 0.0027
Longitude 12.4922 ± 0.0025
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117753881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 270
Semi-minor axis of confidence ellipse (meter) 90
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 150
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.01349
Epicentral distance of station farthest from the epicenter (degree) 0.21224
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 117753881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-26 17:48:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSFR.HHZ. 2023-05-26T17:37:28.55 0.3 undecidable manual S 83 23.5542 101 0.02 73
IV.ATSC.EHN. 2023-05-26T17:37:26.12 0.1 undecidable manual S 84 15.7731 106 0.24 94
IV.PIEI.HHZ. 2023-05-26T17:37:25.52 0.3 undecidable manual S 14 14.3745 107 0.08 73
IV.ATLO.HNN. 2023-05-26T17:37:25.04 0.1 undecidable manual S 213 12.4764 109 0.23 95
IV.SSFR.HHZ. 2023-05-26T17:37:25.16 0.1 undecidable manual P 83 23.5542 101 0.15 94
IV.ATBU.HNE. 2023-05-26T17:37:23.92 0.1 undecidable manual S 32 8.5803 117 0.35 93
IV.ATSC.EHN. 2023-05-26T17:37:23.40 0.1 undecidable manual P 84 15.7731 106 -0.08 97
IV.ATVO.HHZ. 2023-05-26T17:37:23.37 0.1 undecidable manual S 246 7.4814 120 0.14 97
IV.PIEI.HHZ. 2023-05-26T17:37:23.10 0.1 undecidable manual P 14 14.3745 107 -0.12 96
IV.ATPI.EHZ. 2023-05-26T17:37:23.38 0.1 undecidable manual S 302 8.5803 117 -0.17 96
IV.ATPC.HHE. 2023-05-26T17:37:23.49 0.1 undecidable manual S 340 8.3805 118 -0.01 100
IV.TB02.DHE.01 2023-05-26T17:37:23.66 0.1 undecidable manual S 237 7.9809 119 0.3 94
IV.TB03.DH2.01 2023-05-26T17:37:22.86 0.3 undecidable manual S 262 6.6933 124 -0.12 73
IV.ATBU.HNE. 2023-05-26T17:37:22.21 0.1 undecidable manual P 32 8.5803 117 0.06 99
IV.ATLO.HNN. 2023-05-26T17:37:22.86 0.1 undecidable manual P 213 12.4764 109 0 99
IV.ATFO.HHZ. 2023-05-26T17:37:22.92 0.3 undecidable manual S 127 7.9809 119 -0.45 68
IV.TB01.DHE.01 2023-05-26T17:37:22.85 0.1 undecidable manual S 236 5.4945 129 0.2 96
IV.ATPI.EHZ. 2023-05-26T17:37:21.89 0.3 undecidable manual P 302 8.5803 117 -0.25 71
IV.ATPC.HHE. 2023-05-26T17:37:21.96 0.3 undecidable manual P 340 8.3805 118 -0.14 73
IV.TB02.DHE.01 2023-05-26T17:37:21.99 0.1 undecidable manual P 237 7.9809 119 -0.04 99
IV.TSM2.DHZ.01 2023-05-26T17:37:21.71 0.1 undecidable manual S 187 1.4985 161 -0.11 99
IV.ATFO.HHZ. 2023-05-26T17:37:21.77 0.3 undecidable manual P 127 7.9809 119 -0.26 71
IV.TB01.DHE.01 2023-05-26T17:37:21.60 0.1 undecidable manual P 236 5.4945 129 -0.02 100
IV.TSM2.DHZ.01 2023-05-26T17:37:21.04 0.1 undecidable manual P 187 1.4985 161 -0.1 99
IV.ATVO.HHZ. 2023-05-26T17:37:21.89 0.1 undecidable manual P 246 7.4814 120 -0.06 99
IV.TB03.DH2.01 2023-05-26T17:37:21.70 0.1 undecidable manual P 262 6.6933 124 -0.11 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHE. ML:0.5 0.00003675 1.72 AML other m 2023-05-26T17:37:25.06
IV.PIEI.HHN. ML:0.2 0.0000211 1.36 AML other m 2023-05-26T17:37:26.31
IV.SSFR.HHE. ML:0.6 0.0000315 0.28 AML other m 2023-05-26T17:37:28.84
IV.SSFR.HHN. ML:0.5 0.000021949999999999998 0.58 AML other m 2023-05-26T17:37:29.70
IV.ATFO.HHE. ML:0.0 0.000043773569999999995 0.1408 AML other m 2023-05-26T17:37:24.51
IV.ATFO.HHN. ML:0.0 0.000034140545 0.1792 AML other m 2023-05-26T17:37:24.92
IV.ATPI.EHE. ML:0.0 0.000040853464999999995 0.384 AML other m 2023-05-26T17:37:24.08
IV.ATPI.EHN. ML:0.0 0.0000607525 0.1664 AML other m 2023-05-26T17:37:23.56
IV.ATVO.HHE. ML:0.0 0.00007339963 0.1536 AML other m 2023-05-26T17:37:23.42
IV.ATVO.HHN. ML:0.0 0.00007360440500000002 0.1408 AML other m 2023-05-26T17:37:23.51
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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