Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 17-04-2023 and time 13:46:21 (Italy) in region 5 km SE Umbertide (PG)

A magnitude ML 1.5 earthquake occured in region: 5 km SE Umbertide (PG), on

  • 17-04-2023 11:46:21 (UTC)
  • 17-04-2023 13:46:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2830, 12.3740 at 9 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
Umbertide PG 5 16681 16681
Montone PG 10 1680 18361
Gubbio PG 18 32216 50577
Pietralunga PG 19 2111 52688
Corciano PG 19 21332 74020
Lisciano Niccone PG 19 613 74633
Perugia PG 20 166134 240767

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km N of Perugia (166134 inhabitants)
45 Km E of Arezzo (99543 inhabitants)
45 Km NW of Foligno (57155 inhabitants)
81 Km SW of Fano (60888 inhabitants)
82 Km SW of Pesaro (94582 inhabitants)
83 Km N of Terni (111501 inhabitants)
84 Km E of Siena (53903 inhabitants)
88 Km S of Rimini (147750 inhabitants)
96 Km S of Cesena (96758 inhabitants)
99 Km N of Viterbo (67173 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 1.5 2023-04-17
11:46:21		 43.2832 12.3738 9 2024-03-01
17:18:07		 Bollettino Sismico Italiano INGV 117147651
Reviewed
Rev100 		ML 1.5 2023-04-17
11:46:21		 43.2852 12.3757 10 2023-04-17
12:19:56		 Sala Sismica INGV-Roma 116456901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-17 11:46:21 ± 0.05
Latitude 43.2832 ± 0.0027
Longitude 12.3738 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117147651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 310
Semi-minor axis of confidence ellipse (meter) 298
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 323
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 48
Number of associated phases, regardless of their use for origin computation 77
Number of defining phases 74
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) 0.83637
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 40
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 117147651
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-05-08 13:47:17

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 116456901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-17 12:19:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IT.SFI.EHZ. 2023-04-17T11:46:46.90 3.0 undecidable manual Sg 0
IV.NRCA.HHZ. 2023-04-17T11:46:45.71 0.6 undecidable manual S 129 78.0663 50 0.82 35
IV.CING.HNZ. 2023-04-17T11:46:42.21 0.6 undecidable manual S 81 67.0773 50 0.24 43
IV.FDMO.HHZ. 2023-04-17T11:46:41.70 0.6 undecidable manual S 115 63.8916 50 0.59 39
IV.SACS.HHE. 2023-04-17T11:46:41.30 0.6 undecidable manual S 218 61.0944 50 0.93 34
IV.EL6.EHZ. 2023-04-17T11:46:40.30 0.6 undecidable manual S 85 58.9965 50 0.5 41
IV.CESI.HHZ. 2023-04-17T11:46:38.90 0.6 undecidable manual S 126 52.9026 50 0.72 38
IV.MML1.EHZ. 2023-04-17T11:46:37.80 0.3 undecidable manual S 111 51.9036 50 -0.11 68
IV.MPAG.EHZ. 2023-04-17T11:46:37.70 0.6 undecidable manual S 39 49.4172 50 0.46 42
IV.LNSS.HNZ. 2023-04-17T11:46:37.50 0.1 undecidable manual P 144 92.8404 50 0.34 80
IT.SFI.EHZ. 2023-04-17T11:46:36.81 3.0 undecidable manual Pg 0
IV.SNTG.HHZ. 2023-04-17T11:46:36.20 0.6 undecidable manual S 94 45.9207 50 -0.11 46
IV.MGAB.HHZ. 2023-04-17T11:46:35.60 0.6 undecidable manual S 207 46.2204 50 -0.8 37
IV.NRCA.HHZ. 2023-04-17T11:46:34.19 0.1 undecidable manual P 129 78.0663 50 -0.69 74
IV.FRON.EHZ. 2023-04-17T11:46:34.20 0.6 undecidable manual S 47 38.5281 50 -0.14 46
IV.NARO.HHZ. 2023-04-17T11:46:34.50 0.6 undecidable manual S 25 40.0266 50 -0.23 45
IV.ASSB.HHZ. 2023-04-17T11:46:33.30 0.6 undecidable manual S 139 35.2425 50 -0.17 46
IV.SSFR.HHZ. 2023-04-17T11:46:33.80 0.6 undecidable manual S 63 37.0296 50 -0.15 46
IV.PF6.EHN. 2023-04-17T11:46:33.39 0.1 undecidable manual P 103 68.2761 50 0.02 89
IV.CSP1.EHE. 2023-04-17T11:46:33.84 0.1 undecidable manual P 107 70.4739 50 0.13 87
IV.CING.HNZ. 2023-04-17T11:46:33.25 0.1 undecidable manual P 81 67.0773 50 0.06 89
IV.FDMO.HHZ. 2023-04-17T11:46:32.62 0.3 negative manual P 115 63.8916 50 -0.08 67
IV.CAFI.HHZ. 2023-04-17T11:46:32.70 0.6 undecidable manual S 279 33.3444 50 -0.25 45
IV.SACS.HHE. 2023-04-17T11:46:32.63 0.1 undecidable manual P 218 61.0944 50 0.36 84
IV.FOSV.EHZ. 2023-04-17T11:46:32.30 0.6 undecidable manual S 87 31.3464 50 -0.12 47
IV.EL6.EHZ. 2023-04-17T11:46:32.05 0.6 positive manual P 85 58.9965 50 0.11 45
IT.PARC.HHZ. 2023-04-17T11:46:31.72 3.0 undecidable manual Pg 0
IV.MOMA.HNZ. 2023-04-17T11:46:31.17 0.1 undecidable manual P 163 55.5 50 -0.23 88
IV.ATSC.EHZ. 2023-04-17T11:46:31.50 0.6 undecidable manual S 58 29.6481 50 -0.48 44
IV.PIEI.HHZ. 2023-04-17T11:46:31.70 0.6 undecidable manual S 25 30.8469 50 -0.61 42
IV.TSM5.DHZ.01 2023-04-17T11:46:31.50 0.6 undecidable manual S 40 28.5492 108 -0.12 47
IV.MGAB.HHZ. 2023-04-17T11:46:30.20 0.1 undecidable manual P 207 46.2204 50 0.22 89
IV.ATCC.EHZ. 2023-04-17T11:46:30.40 0.6 undecidable manual S 117 24.0537 111 0.24 46
IV.CESI.HHZ. 2023-04-17T11:46:30.75 0.1 undecidable manual P 126 52.9026 50 -0.25 88
IV.ATPC.HNZ. 2023-04-17T11:46:30.00 0.6 undecidable manual S 17 22.9548 112 0.22 47
IV.MML1.EHZ. 2023-04-17T11:46:30.67 0.1 undecidable manual P 111 51.9036 50 -0.17 89
IV.MPAG.EHZ. 2023-04-17T11:46:30.26 0.1 undecidable manual P 39 49.4172 50 -0.2 89
IV.ATBU.EHZ. 2023-04-17T11:46:30.90 0.6 undecidable manual S 33 25.5522 110 0.26 46
IV.SNTG.HHZ. 2023-04-17T11:46:29.82 0.1 undecidable manual P 94 45.9207 50 -0.1 92
IV.CAFI.HHZ. 2023-04-17T11:46:28.15 0.1 undecidable manual P 279 33.3444 50 0.17 93
IV.NARO.HHZ. 2023-04-17T11:46:28.85 0.1 undecidable manual P 25 40.0266 50 -0.16 92
IV.FRON.EHZ. 2023-04-17T11:46:28.59 0.1 undecidable manual P 47 38.5281 50 -0.19 91
IV.ATPI.EHZ. 2023-04-17T11:46:28.30 0.6 undecidable manual S 7 18.7701 116 -0.15 48
IV.SSFR.HHZ. 2023-04-17T11:46:28.48 0.6 undecidable manual P 63 37.0296 50 -0.08 47
IV.ATFO.HHZ. 2023-04-17T11:46:28.50 0.6 undecidable manual S 60 18.4704 117 0.14 48
IV.TSM2.DHZ.01 2023-04-17T11:46:27.50 0.6 undecidable manual S 37 15.6732 121 -0.01 49
IV.FOSV.EHZ. 2023-04-17T11:46:27.58 0.3 undecidable manual P 87 31.3464 50 -0.1 71
IV.ASSB.HHZ. 2023-04-17T11:46:27.79 0.1 undecidable manual P 139 35.2425 50 -0.5 86
IV.ATSC.EHZ. 2023-04-17T11:46:27.21 0.1 undecidable manual P 58 29.6481 50 -0.21 92
IV.PIEI.HHZ. 2023-04-17T11:46:27.73 0.3 positive manual P 25 30.8469 50 0.12 70
IV.TSM5.DHZ.01 2023-04-17T11:46:27.20 0.1 undecidable manual P 40 28.5492 108 -0.01 96
IV.ATVO.HHZ. 2023-04-17T11:46:26.10 0.6 undecidable manual S 14 11.2776 129 -0.16 48
IV.ATMC.EHZ. 2023-04-17T11:46:26.74 0.1 undecidable manual P 321 23.2545 112 0.51 87
IV.ATBU.EHZ. 2023-04-17T11:46:26.83 0.1 undecidable manual P 33 25.5522 110 0.18 94
IV.MURB.HHZ. 2023-04-17T11:46:26.70 0.6 undecidable manual S 100 12.3765 127 0.14 48
IV.TB01.DHZ. 2023-04-17T11:46:26.50 0.6 undecidable manual S 25 11.9769 128 0.04 49
IV.TB03.DHZ. 2023-04-17T11:46:26.80 0.6 undecidable manual S 13 13.4754 125 -0.06 49
IV.ATCC.EHZ. 2023-04-17T11:46:26.42 0.1 negative manual P 117 24.0537 111 0.05 96
IV.ATMI.HHZ. 2023-04-17T11:46:26.10 0.6 undecidable manual S 304 10.2786 132 0.11 49
IV.ATPC.HNZ. 2023-04-17T11:46:26.32 0.1 undecidable manual P 17 22.9548 112 0.17 94
IV.TB02.DHZ. 2023-04-17T11:46:26.20 0.6 undecidable manual S 16 10.0788 132 0.25 47
IV.ATPI.EHZ. 2023-04-17T11:46:25.60 0.3 positive manual P 7 18.7701 116 0.22 70
IV.TSM1.DHZ. 2023-04-17T11:46:25.49 0.1 undecidable manual P 69 19.3695 116 0 98
IV.ATFO.HHZ. 2023-04-17T11:46:25.46 0.1 undecidable manual P 60 18.4704 117 0.13 96
IV.TB03.DHZ. 2023-04-17T11:46:24.59 0.1 undecidable manual P 13 13.4754 125 0.12 97
IV.ATVA.EHZ. 2023-04-17T11:46:24.50 0.6 undecidable manual S 266 7.1928 142 -0.76 41
IV.ATMI.HHZ. 2023-04-17T11:46:24.31 1.0 negative manual P 304 10.2786 132 0.34 23
IV.TB02.DHZ. 2023-04-17T11:46:24.07 0.1 undecidable manual P 16 10.0788 132 0.13 97
IT.UMBT.HGZ. 2023-04-17T11:46:24.20 0.6 undecidable manual S 314 3.3966 160 -0.42 46
IV.ATVO.HHZ. 2023-04-17T11:46:24.26 0.1 negative manual P 14 11.2776 129 0.14 97
IV.TSM2.DHZ.01 2023-04-17T11:46:24.94 0.1 undecidable manual P 37 15.6732 121 0.1 97
IV.TB01.DHZ. 2023-04-17T11:46:24.36 0.1 undecidable manual P 25 11.9769 128 0.12 97
IV.MURB.HHZ. 2023-04-17T11:46:24.42 0.1 negative manual P 100 12.3765 127 0.13 97
IV.ATLO.EHZ. 2023-04-17T11:46:23.90 0.3 undecidable manual S 37 4.4955 154 -0.87 59
IV.ATLO.EHZ. 2023-04-17T11:46:23.00 0.1 undecidable manual P 37 4.4955 154 -0.26 95
IV.ATVA.EHZ. 2023-04-17T11:46:23.48 0.1 undecidable manual P 266 7.1928 142 -0.06 99
IT.UMBT.HGZ. 2023-04-17T11:46:23.21 0.1 undecidable manual P 314 3.3966 160 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IT.UMBT.HGE. ML:4.0 0.2095 0.2 AML other m 2023-04-17T11:46:24.83
IT.UMBT.HGN. ML:4.1 0.262 0.16 AML other m 2023-04-17T11:46:27.22
IV.ATMI.HHE. ML:2.2 0.001925 0.34 AML other m 2023-04-17T11:46:27.13
IV.ATVO.HHE. ML:1.7 0.0006295 0.38 AML other m 2023-04-17T11:46:28.23
IV.ATVO.HNE. ML:1.6 0.0005380000000000001 0.38 AML other m 2023-04-17T11:46:28.24
IV.ATFO.HHE. ML:1.8 0.000514 0.24 AML other m 2023-04-17T11:46:28.81
IV.ATFO.HHN. ML:1.9 0.000644 1.52 AML other m 2023-04-17T11:46:28.82
IV.ATMI.HHN. ML:2.1 0.001635 1.6 AML other m 2023-04-17T11:46:28.08
IV.ATVO.HHN. ML:1.6 0.000493 0.44 AML other m 2023-04-17T11:46:29.85
IV.ATVO.HNN. ML:1.6 0.0005420000000000001 1.24 AML other m 2023-04-17T11:46:29.64
IV.ATPI.EHN. ML:1.4 0.00019 0.32 AML other m 2023-04-17T11:46:30.39
IV.ATPI.EHE. ML:1.5 0.00026700000000000004 1.22 AML other m 2023-04-17T11:46:31.28
IV.FOSV.EHE. ML:1.3 0.00008305000000000001 0.92 AML other m 2023-04-17T11:46:33.55
IV.PIEI.HHN. ML:1.4 0.00011949999999999999 1.46 AML other m 2023-04-17T11:46:33.24
IV.ATCC.EHE. ML:1.7 0.000279 0.7 AML other m 2023-04-17T11:46:33.16
IV.CAFI.HHN. ML:1.3 0.0000824 1.08 AML other m 2023-04-17T11:46:33.04
IV.ATCC.EHN. ML:1.7 0.0003135 0.46 AML other m 2023-04-17T11:46:33.63
IV.PIEI.HHE. ML:1.4 0.000132 1.06 AML other m 2023-04-17T11:46:34.07
IV.ASSB.HHN. ML:1.4 0.0001013 0.82 AML other m 2023-04-17T11:46:34.15
IV.SSFR.HHN. ML:1.7 0.0001825 0.22 AML other m 2023-04-17T11:46:34.56
IV.SSFR.HHE. ML:1.6 0.000149 0.84 AML other m 2023-04-17T11:46:35.23
IV.CAFI.HHE. ML:1.3 0.00008350000000000001 0.36 AML other m 2023-04-17T11:46:35.25
IV.ASSB.HHE. ML:1.3 0.000087 1.74 AML other m 2023-04-17T11:46:35.95
IV.NARO.HHN. ML:1.1 0.000046949999999999996 1.12 AML other m 2023-04-17T11:46:36.03
IV.NARO.HHE. ML:1.3 0.00006785000000000001 1.22 AML other m 2023-04-17T11:46:36.23
IV.MGAB.HHE. ML:1.7 0.00014150000000000002 0.4 AML other m 2023-04-17T11:46:37.10
IV.FOSV.EHN. ML:1.3 0.00009379999999999999 0.96 AML other m 2023-04-17T11:46:37.84
IV.MGAB.HHN. ML:1.7 0.000136 1.38 AML other m 2023-04-17T11:46:40.95
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