Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 30-04-2023 and time 00:31:00 (UTC) in region 5 km S Gualdo Tadino (PG)

A magnitude ML 1.6 earthquake occured in region: 5 km S Gualdo Tadino (PG), on

  • 30-04-2023 00:31:00 (UTC)
  • 30-04-2023 02:31:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1910, 12.7960 at 10 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
Gualdo Tadino PG 5 15208 15208
Nocera Umbra PG 9 5839 21047
Fiuminata MC 11 1402 22449
Fossato di Vico PG 12 2840 25289
Sefro MC 13 422 25711
Esanatoglia MC 14 2034 27745
Valtopina PG 15 1398 29143
Pioraco MC 15 1134 30277
Valfabbrica PG 16 3389 33666
Sigillo PG 16 2404 36070
Serravalle di Chienti MC 18 1070 37140
Fabriano AN 19 31480 68620
Matelica MC 19 9981 78601
Assisi PG 20 28299 106900
Costacciaro PG 20 1216 108116

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km N of Foligno (57155 inhabitants)
34 Km E of Perugia (166134 inhabitants)
71 Km N of Terni (111501 inhabitants)
75 Km S of Fano (60888 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
80 Km E of Arezzo (99543 inhabitants)
81 Km S of Pesaro (94582 inhabitants)
95 Km NW of Teramo (54892 inhabitants)
99 Km S of Rimini (147750 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 2023-04-30
00:31:00		 43.1908 12.7963 10 2024-03-01
17:18:07		 Bollettino Sismico Italiano INGV 117146951
Reviewed
Rev100 		ML 1.5 2023-04-30
00:31:00		 43.1923 12.799 11 2023-04-30
00:41:09		 Sala Sismica INGV-Roma 116886101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-30 00:31:00 ± 0.03
Latitude 43.1908 ± 0.0018
Longitude 12.7963 ± 0.0025
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117146951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 200
Semi-minor axis of confidence ellipse (meter) 95
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 227
Circular confidence region, given by single value of horizontal uncertainty (meter) 200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 53
Number of associated phases, regardless of their use for origin computation 78
Number of defining phases 78
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) 0.09893
Epicentral distance of station farthest from the epicenter (degree) 0.95148
Number of stations at which the event was observed 44
Number of stations from which data was used for origin computation 44
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 69
Type of magnitude ML
Reference to an origin 117146951
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-25 11:21:57

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 60
Type of magnitude ML
Reference to an origin 116886101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-30 00:41:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2023-04-30T00:31:18.04 0.6 undecidable manual S 172 55.8996 50 0.23 44
IV.MMO1.EHZ. 2023-04-30T00:31:17.51 0.6 undecidable manual S 127 53.8017 50 0.26 44
IV.FIAM.HHZ. 2023-04-30T00:31:17.66 0.6 undecidable manual P 166 105.6165 50 -0.41 39
IV.NARO.HHZ. 2023-04-30T00:31:16.53 0.6 undecidable manual S 340 49.7169 50 0.36 44
IV.GUMA.HHZ. 2023-04-30T00:31:16.16 0.6 undecidable manual S 108 45.9207 50 1.02 34
IV.NRCA.HHZ. 2023-04-30T00:31:15.53 0.6 undecidable manual S 147 47.3193 50 0.02 47
IV.TERO.HHZ. 2023-04-30T00:31:15.57 0.3 undecidable manual P 134 90.9423 50 -0.24 63
IV.ATMI.HHZ. 2023-04-30T00:31:15.40 0.6 undecidable manual S 291 45.5211 50 0.35 44
IT.GNU.HGE. 2023-04-30T00:31:15.71 0.6 undecidable manual S 203 46.7199 50 0.36 44
IV.MOMA.HHZ. 2023-04-30T00:31:15.69 0.6 undecidable manual S 203 46.7199 50 0.34 44
IV.PIEI.HHZ. 2023-04-30T00:31:14.76 0.6 undecidable manual S 331 43.7229 50 0.21 46
IV.ATPI.EHZ. 2023-04-30T00:31:14.79 0.6 undecidable manual S 312 42.9237 50 0.44 44
IV.SMA1.EHZ. 2023-04-30T00:31:13.34 0.3 undecidable manual P 145 76.0683 50 -0.16 65
IV.CING.HHZ. 2023-04-30T00:31:13.45 0.3 undecidable manual S 57 38.2284 50 0.36 67
IV.TSM5.DHE.01 2023-04-30T00:31:12.48 0.6 undecidable manual S 334 35.6421 50 0.07 48
IV.PARC.HHZ. 2023-04-30T00:31:12.44 0.3 undecidable manual P 319 67.7766 50 0.2 66
IV.FRON.EHZ. 2023-04-30T00:31:12.41 0.6 undecidable manual S 351 36.741 50 -0.28 46
IV.CSP1.EHZ. 2023-04-30T00:31:12.16 0.3 undecidable manual S 108 34.8429 50 -0.03 73
IV.ARVD.HHZ. 2023-04-30T00:31:12.42 0.6 undecidable manual S 19 36.0417 50 -0.09 48
IV.ARRO.EHZ. 2023-04-30T00:31:12.59 0.3 undecidable manual P 182 67.8765 50 0.34 64
IV.SSP9.EHZ. 2023-04-30T00:31:12.74 0.3 undecidable manual P 309 68.376 50 0.41 63
IV.LNSS.HHZ. 2023-04-30T00:31:12.13 0.3 undecidable manual P 163 68.1762 50 -0.16 66
IV.PE3.EHZ. 2023-04-30T00:31:11.53 0.3 undecidable manual P 337 60.9945 50 0.34 65
IV.MMUR.HNN. 2023-04-30T00:31:11.34 0.6 undecidable manual S 30 32.2455 50 -0.15 47
IV.MDAR.HNN. 2023-04-30T00:31:10.38 0.6 undecidable manual S 89 28.0497 50 0.01 49
IV.ATFO.HHZ. 2023-04-30T00:31:10.04 0.3 undecidable manual S 317 26.6511 50 0.04 73
IV.FDMO.HHZ. 2023-04-30T00:31:10.59 0.3 undecidable manual S 126 29.1486 50 -0.08 73
IV.GAVE.EHZ. 2023-04-30T00:31:10.18 0.3 undecidable manual P 172 55.8996 50 -0.22 67
IV.BADI.EHZ. 2023-04-30T00:31:10.82 0.1 undecidable manual P 309 56.8986 50 0.27 88
IT.MTCL.HGZ. 2023-04-30T00:31:10.10 0.3 undecidable manual S 143 27.3504 50 -0.09 73
IV.TSM1.DHE.01 2023-04-30T00:31:09.02 0.1 undecidable manual S 317 23.4543 50 -0.14 96
IV.MURB.HHZ. 2023-04-30T00:31:09.16 0.3 undecidable manual S 290 23.3544 50 0.03 74
IV.MMO1.EHZ. 2023-04-30T00:31:09.98 0.3 undecidable manual P 127 53.8017 50 -0.1 69
IV.ATMI.HHZ. 2023-04-30T00:31:09.14 0.6 undecidable manual P 291 45.5211 50 0.34 44
IV.NARO.HHZ. 2023-04-30T00:31:09.25 0.1 undecidable manual P 340 49.7169 50 -0.2 91
IV.ATSC.EHE. 2023-04-30T00:31:09.87 0.3 undecidable manual S 341 27.3504 50 -0.32 69
IV.SSFR.HNZ. 2023-04-30T00:31:09.98 0.3 undecidable manual S 358 27.2505 50 -0.19 71
IV.GUMA.HHZ. 2023-04-30T00:31:09.17 0.1 undecidable manual P 108 45.9207 50 0.31 89
IV.GAG1.HNE. 2023-04-30T00:31:09.16 0.3 undecidable manual S 76 22.5552 115 0.28 71
IV.MPAG.EHZ. 2023-04-30T00:31:09.24 0.3 undecidable manual P 357 48.7179 50 -0.05 70
IV.PIEI.HHZ. 2023-04-30T00:31:08.35 0.1 undecidable manual P 331 43.7229 50 -0.17 92
IV.ATPI.EHZ. 2023-04-30T00:31:08.40 0.1 undecidable manual P 312 42.9237 50 0 96
IV.NRCA.HHZ. 2023-04-30T00:31:08.81 0.1 undecidable manual P 147 47.3193 50 -0.26 90
IT.GNU.HGE. 2023-04-30T00:31:08.90 1.0 undecidable manual P 203 46.7199 50 -0.08 23
IV.MOMA.HHZ. 2023-04-30T00:31:08.95 0.1 undecidable manual P 203 46.7199 50 -0.03 95
IV.CESI.HHZ. 2023-04-30T00:31:08.80 0.1 undecidable manual S 157 22.4553 115 -0.04 98
IV.CING.HHZ. 2023-04-30T00:31:07.67 0.1 undecidable manual P 57 38.2284 50 0 97
IV.MML1.HNE. 2023-04-30T00:31:07.12 0.3 undecidable manual S 121 16.5723 122 0.06 75
IV.TSM5.DHE.01 2023-04-30T00:31:07.06 0.1 undecidable manual P 334 35.6421 50 -0.22 93
IV.MTL1.HNN. 2023-04-30T00:31:07.81 0.6 undecidable manual S 67 18.7701 119 0.11 49
IV.ASSB.HHZ. 2023-04-30T00:31:07.76 0.1 undecidable manual S 214 19.869 118 -0.29 94
IV.FRON.EHZ. 2023-04-30T00:31:07.12 0.3 undecidable manual P 351 36.741 50 -0.32 68
IV.CSP1.EHZ. 2023-04-30T00:31:07.06 0.3 undecidable manual P 108 34.8429 50 -0.09 72
IV.ARVD.HHZ. 2023-04-30T00:31:07.17 0.1 undecidable manual P 19 36.0417 50 -0.17 94
IV.SNTG.HHZ. 2023-04-30T00:31:06.18 0.1 undecidable manual S 59 13.6752 127 -0.05 99
IV.MMUR.HNN. 2023-04-30T00:31:06.58 0.3 undecidable manual P 30 32.2455 50 -0.17 71
IV.MDAR.HNN. 2023-04-30T00:31:06.23 0.3 undecidable manual P 89 28.0497 50 0.13 72
IV.SEF1.HNZ. 2023-04-30T00:31:06.11 0.3 undecidable manual S 112 13.1757 128 0.02 76
IV.FDMO.HHZ. 2023-04-30T00:31:06.10 0.1 undecidable manual P 126 29.1486 50 -0.17 95
IV.ATCC.EHZ. 2023-04-30T00:31:06.19 0.1 undecidable manual S 267 12.6762 129 0.24 97
IV.ATSC.EHE. 2023-04-30T00:31:05.79 0.1 undecidable manual P 341 27.3504 50 -0.21 94
IV.SSFR.HNZ. 2023-04-30T00:31:05.86 0.1 undecidable manual P 358 27.2505 50 -0.13 96
IV.GAG1.HNE. 2023-04-30T00:31:05.39 0.3 undecidable manual P 76 22.5552 115 0.14 72
IV.FIU1.HNZ. 2023-04-30T00:31:05.45 0.1 undecidable manual S 91 10.9779 133 -0.06 100
IT.MTCL.HGZ. 2023-04-30T00:31:05.77 0.1 undecidable manual P 143 27.3504 50 -0.23 94
IV.FOSV.EHZ. 2023-04-30T00:31:05.68 0.1 undecidable manual S 346 11.877 131 -0.07 99
IV.TSM1.DHE.01 2023-04-30T00:31:05.16 0.1 undecidable manual P 317 23.4543 50 -0.25 94
IV.ATFO.HHZ. 2023-04-30T00:31:05.81 0.1 undecidable manual P 317 26.6511 50 -0.08 97
IV.MURB.HHZ. 2023-04-30T00:31:05.42 0.1 undecidable manual P 290 23.3544 50 0.03 98
IV.ASSB.HHZ. 2023-04-30T00:31:04.66 0.1 undecidable manual P 214 19.869 118 -0.1 97
IV.CESI.HHZ. 2023-04-30T00:31:04.97 0.1 undecidable manual P 157 22.4553 115 -0.25 94
IV.MML1.HNE. 2023-04-30T00:31:04.22 0.1 undecidable manual P 121 16.5723 122 0.03 100
IV.MTL1.HNN. 2023-04-30T00:31:04.72 0.6 undecidable manual P 67 18.7701 119 0.16 49
IV.SEF1.HNZ. 2023-04-30T00:31:03.80 0.3 undecidable manual P 112 13.1757 128 0.17 73
IV.ATCC.EHZ. 2023-04-30T00:31:03.79 0.1 undecidable manual P 267 12.6762 129 0.24 96
IV.FIU1.HNZ. 2023-04-30T00:31:03.46 0.1 undecidable manual P 91 10.9779 133 0.17 98
IV.SNTG.HHZ. 2023-04-30T00:31:03.82 0.1 undecidable manual P 59 13.6752 127 0.11 99
IV.FOSV.EHZ. 2023-04-30T00:31:03.56 0.1 undecidable manual P 346 11.877 131 0.13 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FOSV.HNN. ML:1.8 0.0007894999999999999 0.28 AML other m 2023-04-30T00:31:05.77
IV.FOSV.EHN. ML:1.8 0.0007975 0.26 AML other m 2023-04-30T00:31:05.78
IV.FOSV.EHE. ML:1.7 0.000629 0.16 AML other m 2023-04-30T00:31:05.77
IV.FOSV.HNE. ML:1.7 0.0005915 0.18 AML other m 2023-04-30T00:31:05.76
IV.ATCC.EHN. ML:1.9 0.0008355 0.14 AML other m 2023-04-30T00:31:06.26
IV.ATCC.HNN. ML:2.0 0.0009515 0.12 AML other m 2023-04-30T00:31:06.26
IV.ATCC.EHE. ML:2.0 0.001075 0.26 AML other m 2023-04-30T00:31:06.39
IV.ATCC.HNE. ML:2.0 0.0009795000000000001 0.58 AML other m 2023-04-30T00:31:06.39
IV.SNTG.HNN. ML:1.6 0.0004075 0.46 AML other m 2023-04-30T00:31:06.94
IV.SNTG.HHN. ML:1.6 0.000407 0.46 AML other m 2023-04-30T00:31:06.94
IV.SNTG.HHE. ML:1.6 0.000379 0.46 AML other m 2023-04-30T00:31:06.50
IV.SNTG.HNE. ML:1.6 0.000386 0.46 AML other m 2023-04-30T00:31:06.50
IV.ASSB.HHE. ML:1.7 0.00039049999999999995 1.64 AML other m 2023-04-30T00:31:07.03
IV.ASSB.HHN. ML:1.9 0.000612 1.62 AML other m 2023-04-30T00:31:07.88
IV.CESI.HNE. ML:1.4 0.00017413165 0.15 AML other m 2023-04-30T00:31:08.85
IV.CESI.HHE. ML:1.5 0.00021250000000000002 0.96 AML other m 2023-04-30T00:31:09.85
IV.CESI.HHN. ML:1.4 0.0001475 1.16 AML other m 2023-04-30T00:31:09.07
IV.MURB.HHE. ML:2.0 0.0006655 0.36 AML other m 2023-04-30T00:31:09.64
IV.MURB.HNE. ML:2.0 0.00064 0.38 AML other m 2023-04-30T00:31:09.64
IV.MURB.HNN. ML:1.9 0.0005719999999999999 0.14 AML other m 2023-04-30T00:31:09.86
IV.MURB.HHN. ML:2.0 0.0006910000000000001 0.14 AML other m 2023-04-30T00:31:09.86
IV.ATFO.HNE. ML:1.4 0.00012576064 0.27 AML other m 2023-04-30T00:31:10.20
IV.SSFR.HHE. ML:2.0 0.0005605 0.64 AML other m 2023-04-30T00:31:10.21
IV.ATFO.HHE. ML:1.5 0.00016299999999999998 0.86 AML other m 2023-04-30T00:31:10.20
IV.SSFR.HNE. ML:2.1 0.0006779999999999999 1.08 AML other m 2023-04-30T00:31:10.24
IV.ATFO.HHN. ML:1.4 0.0001245 1.16 AML other m 2023-04-30T00:31:10.28
IV.SSFR.HHN. ML:2.0 0.0005024999999999999 0.72 AML other m 2023-04-30T00:31:11.60
IV.SSFR.HNN. ML:2.1 0.000687 0.68 AML other m 2023-04-30T00:31:11.60
IV.CSP1.EHN. ML:2.2 0.0006265000000000001 0.58 AML other m 2023-04-30T00:31:12.98
IV.ARVD.HHN. ML:1.2 0.00006115000000000001 1.36 AML other m 2023-04-30T00:31:13.12
IV.FRON.EHE. ML:1.6 0.0001395 0.12 AML other m 2023-04-30T00:31:13.46
IV.CING.HHE. ML:1.5 0.00010499999999999999 0.74 AML other m 2023-04-30T00:31:13.16
IV.FRON.EHN. ML:1.7 0.000179 0.46 AML other m 2023-04-30T00:31:14.03
IV.CSP1.EHE. ML:1.9 0.0003045 1.52 AML other m 2023-04-30T00:31:14.89
IV.CING.HHN. ML:1.6 0.00015899999999999996 0.6 AML other m 2023-04-30T00:31:14.14
IV.ARVD.HHE. ML:1.3 0.0000844 0.56 AML other m 2023-04-30T00:31:14.71
IV.ATPI.EHE. ML:1.1 0.00003875 0.26 AML other m 2023-04-30T00:31:15.13
IV.PIEI.HHE. ML:1.6 0.0001147 0.1 AML other m 2023-04-30T00:31:15.50
IV.ATPI.EHN. ML:1.1 0.0000408 0.56 AML other m 2023-04-30T00:31:15.50
IV.PIEI.HHN. ML:1.3 0.000059550000000000004 1.2 AML other m 2023-04-30T00:31:15.87
IV.ATMI.HHE. ML:1.5 0.0001012 0.3 AML other m 2023-04-30T00:31:16.04
IV.GUMA.HHE. ML:1.9 0.0002175 0.62 AML other m 2023-04-30T00:31:16.42
IV.ATMI.HHN. ML:1.4 0.00007225000000000001 0.56 AML other m 2023-04-30T00:31:16.48
IV.MOMA.HHN. ML:1.2 0.000050199999999999994 0.84 AML other m 2023-04-30T00:31:16.38
IV.NRCA.HHE. ML:1.8 0.000163 0.1 AML other m 2023-04-30T00:31:16.94
IV.NRCA.HHN. ML:1.7 0.000132 0.7 AML other m 2023-04-30T00:31:16.89
IV.NRCA.HNE. ML:1.8 0.00016787515 0.1 AML other m 2023-04-30T00:31:16.95
IV.NARO.HHE. ML:1.3 0.000052850000000000004 0.86 AML other m 2023-04-30T00:31:17.81
IV.MPAG.EHN. ML:1.3 0.00004970000000000001 0.28 AML other m 2023-04-30T00:31:17.56
IV.NARO.HHN. ML:1.3 0.00005525 0.44 AML other m 2023-04-30T00:31:17.60
IV.MOMA.HHE. ML:1.5 0.0000932 1.08 AML other m 2023-04-30T00:31:17.86
IV.MMO1.EHN. ML:1.3 0.00005225 0.14 AML other m 2023-04-30T00:31:18.12
IV.GUMA.HHN. ML:1.9 0.000224 0.54 AML other m 2023-04-30T00:31:18.66
IV.MMO1.EHE. ML:1.3 0.00005075 0.6 AML other m 2023-04-30T00:31:19.76
IV.GAVE.EHE. ML:1.8 0.0001465 1.12 AML other m 2023-04-30T00:31:19.83
IV.BADI.EHE. ML:1.4 0.00004885 1.46 AML other m 2023-04-30T00:31:20.84
IV.BADI.EHN. ML:1.2 0.000032600000000000006 0.72 AML other m 2023-04-30T00:31:20.49
IV.GAVE.EHN. ML:1.7 0.0001185 0.54 AML other m 2023-04-30T00:31:20.50
IV.MPAG.EHE. ML:1.3 0.00005375 0.44 AML other m 2023-04-30T00:31:21.01
IV.LNSS.HHE. ML:1.5 0.0000585 0.34 AML other m 2023-04-30T00:31:22.38
IV.ARRO.EHN. ML:1.4 0.0000382 0.2 AML other m 2023-04-30T00:31:22.75
IV.LNSS.HHN. ML:1.5 0.0000594 0.82 AML other m 2023-04-30T00:31:22.94
IV.PARC.HHE. ML:0.8 0.000010845063000000001 0.16 AML other m 2023-04-30T00:31:23.86
IV.PARC.HHN. ML:0.9 0.0000155023 1.28 AML other m 2023-04-30T00:31:24.75
IV.ARRO.EHE. ML:1.3 0.000036450000000000005 0.92 AML other m 2023-04-30T00:31:26.30
IV.SMA1.EHN. ML:1.3 0.00003045 1.46 AML other m 2023-04-30T00:31:28.82
IV.TERO.HHN. ML:0.9 0.000012316545 0.1 AML other m 2023-04-30T00:31:29.96
IV.SMA1.EHE. ML:1.3 0.000029350000000000002 0.46 AML other m 2023-04-30T00:31:30.17
IV.TERO.HHE. ML:1.1 0.00001605 0.94 AML other m 2023-04-30T00:31:31.45
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