Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 21-04-2023 and time 18:23:56 (UTC) in region 4 km NW Pietralunga (PG)

A magnitude ML 2.0 earthquake occured in region: 4 km NW Pietralunga (PG), on

  • 21-04-2023 18:23:56 (UTC)
  • 21-04-2023 20:23:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4780, 12.4100 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 5 2111 2111
Apecchio PU 9 1882 3993
Città di Castello PG 14 39913 43906
Montone PG 14 1680 45586
Piobbico PU 15 2029 47615
Cantiano PU 18 2245 49860
Gubbio PG 19 32216 82076
Mercatello sul Metauro PU 20 1378 83454
Umbertide PG 20 16681 100135

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km N of Perugia (166134 inhabitants)
43 Km E of Arezzo (99543 inhabitants)
63 Km NW of Foligno (57155 inhabitants)
63 Km SW of Pesaro (94582 inhabitants)
64 Km SW of Fano (60888 inhabitants)
66 Km S of Rimini (147750 inhabitants)
75 Km S of Cesena (96758 inhabitants)
88 Km SE of Forlì (117913 inhabitants)
89 Km E of Siena (53903 inhabitants)
91 Km W of Ancona (100861 inhabitants)
98 Km E of Firenze (382808 inhabitants)
99 Km SE of Faenza (58541 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 2.0 2023-04-21
18:23:56		 43.4777 12.4097 9 2024-03-01
17:18:10		 Bollettino Sismico Italiano INGV 118146641
Reviewed
Rev100 		ML 2.0 2023-04-21
18:23:56		 43.4807 12.4158 8 2023-04-21
18:40:42		 Sala Sismica INGV-Roma 116580441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-21 18:23:56 ± 0.03
Latitude 43.4777 ± 0.0018
Longitude 12.4097 ± 0.0025
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 118146641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 162
Semi-minor axis of confidence ellipse (meter) 112
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 358
Circular confidence region, given by single value of horizontal uncertainty (meter) 170.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 29
Number of associated phases, regardless of their use for origin computation 70
Number of defining phases 70
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.02788
Epicentral distance of station farthest from the epicenter (degree) 0.74374
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 42
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 64
Type of magnitude ML
Reference to an origin 118146641
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-06 13:10:02

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 75
Type of magnitude ML
Reference to an origin 116580441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-21 18:40:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RUFI.EHZ. 2023-04-21T18:24:11.08 0.3 undecidable manual P 299 82.5507 50 0.37 60
IV.ARVD.HHZ. 2023-04-21T18:24:10.89 0.3 undecidable manual S 87 42.8238 50 0.18 68
IV.SACS.HHZ. 2023-04-21T18:24:10.75 0.3 undecidable manual P 210 80.6637 50 0.34 61
IV.CAFI.HHZ. 2023-04-21T18:24:09.51 0.3 undecidable manual S 245 39.3273 50 -0.26 67
IV.CRE.HHZ. 2023-04-21T18:24:09.61 0.3 undecidable manual S 293 40.0266 50 -0.34 66
IV.FDMO.HHZ. 2023-04-21T18:24:09.20 0.1 undecidable manual P 132 73.4709 50 -0.1 87
IV.CPGN.EHZ. 2023-04-21T18:24:09.37 0.6 undecidable manual S 349 36.5412 50 0.34 44
IV.MOMA.HHZ. 2023-04-21T18:24:09.84 0.3 undecidable manual P 170 75.8685 50 0.17 64
IV.ATCC.EHZ. 2023-04-21T18:24:09.75 0.3 undecidable manual S 150 37.4292 50 0.5 64
IV.MGAB.HHZ. 2023-04-21T18:24:08.40 0.3 undecidable manual P 201 67.1772 50 0.06 66
IV.FOSV.HNE. 2023-04-21T18:24:08.77 0.6 undecidable manual S 125 34.8429 50 0.2 46
IV.CESI.HHZ. 2023-04-21T18:24:08.17 0.1 undecidable manual P 142 65.9895 50 0.02 89
IV.CING.HHZ. 2023-04-21T18:24:08.05 0.3 undecidable manual P 100 64.2912 50 0.15 65
IV.SFI.EHZ. 2023-04-21T18:24:08.02 0.3 undecidable manual P 317 65.3901 50 -0.05 67
IV.SSFR.HHZ. 2023-04-21T18:24:07.04 0.3 undecidable manual S 99 30.3474 106 -0.13 70
IV.MML1.EHZ. 2023-04-21T18:24:07.22 0.1 undecidable manual P 131 60.7947 50 -0.13 88
IV.MPAG.EHZ. 2023-04-21T18:24:07.90 0.6 undecidable manual S 59 32.745 105 -0.08 47
IV.PESA.HHE. 2023-04-21T18:24:07.66 0.3 undecidable manual P 34 61.8936 50 0.13 66
IV.EL6.EHZ. 2023-04-21T18:24:06.75 0.1 undecidable manual P 106 58.1973 50 -0.2 87
IV.FRON.EHZ. 2023-04-21T18:24:05.45 0.6 undecidable manual S 80 25.8519 108 -0.21 46
IV.PARC.HHZ. 2023-04-21T18:24:05.12 0.6 undecidable manual S 324 23.4543 110 0.24 46
IV.SNTG.HHZ. 2023-04-21T18:24:05.54 0.1 undecidable manual P 120 49.4172 50 -0.07 91
IV.PE3.EHZ. 2023-04-21T18:24:05.77 0.6 undecidable manual S 16 25.1526 109 0.31 45
IV.SSP9.EHZ. 2023-04-21T18:24:05.20 0.6 undecidable manual S 296 24.753 109 -0.12 47
IV.CRTC.HNE. 2023-04-21T18:24:05.67 0.3 undecidable manual P 50 49.8168 50 0 69
IV.MURB.HHZ. 2023-04-21T18:24:05.38 0.6 undecidable manual S 159 25.5522 108 -0.2 46
IV.ASSB.HHZ. 2023-04-21T18:24:05.84 0.1 undecidable manual P 157 52.3032 50 -0.2 88
IV.ATVA.EHE. 2023-04-21T18:24:04.71 0.6 undecidable manual S 204 24.2535 109 -0.44 44
IV.ARVD.HHZ. 2023-04-21T18:24:04.37 0.1 positive manual P 87 42.8238 50 -0.23 89
IV.ATSC.EHE. 2023-04-21T18:24:04.88 0.3 undecidable manual S 105 23.0547 110 0.12 71
IV.CPGN.EHZ. 2023-04-21T18:24:03.96 0.1 positive manual P 349 36.5412 50 0.34 88
IV.ATFO.HHZ. 2023-04-21T18:24:03.25 0.6 undecidable manual S 133 17.9709 115 0.13 48
IV.ATMC.EHE. 2023-04-21T18:24:03.01 0.3 undecidable manual S 259 17.7711 115 -0.06 72
IV.ATCC.EHZ. 2023-04-21T18:24:03.62 0.1 undecidable manual P 150 37.4292 50 -0.13 92
IV.NARO.HHZ. 2023-04-21T18:24:03.62 0.6 undecidable manual S 43 20.1687 113 -0.21 47
IV.ATLO.EHE. 2023-04-21T18:24:03.21 0.3 undecidable manual S 181 18.0708 115 0.06 72
IV.FOSV.HNE. 2023-04-21T18:24:03.26 0.6 undecidable manual P 125 34.8429 50 -0.1 46
IV.CAFI.HHZ. 2023-04-21T18:24:03.79 0.1 positive manual P 245 39.3273 50 -0.26 89
IV.ATMI.HHZ. 2023-04-21T18:24:03.97 0.3 undecidable manual S 216 19.5693 113 0.33 68
IV.CRE.HHZ. 2023-04-21T18:24:03.77 0.3 undecidable manual P 293 40.0266 50 -0.38 65
IV.MPAG.EHZ. 2023-04-21T18:24:02.67 0.1 positive manual P 59 32.745 105 -0.34 89
IV.SSFR.HHZ. 2023-04-21T18:24:02.24 0.1 positive manual P 99 30.3474 106 -0.31 90
IV.CDCA.HNZ. 2023-04-21T18:24:02.47 0.6 undecidable manual S 261 14.3745 121 0.46 45
IV.FRON.EHZ. 2023-04-21T18:24:01.45 0.1 positive manual P 80 25.8519 108 -0.23 92
IV.ATSC.EHE. 2023-04-21T18:24:01.12 0.1 undecidable manual P 105 23.0547 110 -0.04 96
IV.PE3.EHZ. 2023-04-21T18:24:01.64 0.1 positive manual P 16 25.1526 109 0.08 95
IV.ATVA.EHE. 2023-04-21T18:24:01.56 0.3 undecidable manual P 204 24.2535 109 0.18 70
IV.ATVO.HHZ. 2023-04-21T18:24:01.01 0.3 undecidable manual S 181 10.5783 129 0.06 73
IV.PARC.HHZ. 2023-04-21T18:24:01.10 0.1 undecidable manual P 324 23.4543 110 -0.12 94
IV.PIEI.HNN. 2023-04-21T18:24:01.70 0.3 undecidable manual S 57 11.9769 125 0.38 68
IV.MURB.HHZ. 2023-04-21T18:24:01.59 0.1 undecidable manual P 159 25.5522 108 -0.04 96
IV.BADI.EHZ. 2023-04-21T18:24:01.87 0.3 undecidable manual S 285 13.7751 122 0.02 73
IV.SSP9.EHZ. 2023-04-21T18:24:01.37 0.1 undecidable manual P 296 24.753 109 -0.12 94
IV.ATBU.EHZ. 2023-04-21T18:24:01.59 0.3 undecidable manual S 91 11.1777 127 0.49 67
IV.ATMI.HHZ. 2023-04-21T18:24:00.58 0.1 positive manual P 216 19.5693 113 0.07 96
IV.APEC.HNZ. 2023-04-21T18:24:00.37 0.3 undecidable manual S 5 8.9799 133 -0.16 72
IV.ATFO.HHZ. 2023-04-21T18:24:00.22 0.1 negative manual P 133 17.9709 115 0.01 98
IV.ATMC.EHE. 2023-04-21T18:24:00.14 0.1 positive manual P 259 17.7711 115 -0.04 97
IV.NARO.HHZ. 2023-04-21T18:24:00.45 0.1 positive manual P 43 20.1687 113 -0.17 94
IV.ATLO.EHE. 2023-04-21T18:24:00.27 0.1 positive manual P 181 18.0708 115 0.05 97
IV.PIEI.HNN. 2023-04-21T18:23:59.30 0.1 positive manual P 57 11.9769 125 0.12 96
IV.CDCA.HNZ. 2023-04-21T18:23:59.87 0.3 undecidable manual P 261 14.3745 121 0.3 69
IV.BADI.EHZ. 2023-04-21T18:23:59.54 0.1 positive manual P 285 13.7751 122 0.07 97
IV.ATBU.EHZ. 2023-04-21T18:23:59.36 0.1 positive manual P 91 11.1777 127 0.32 93
IV.ATPC.HHE. 2023-04-21T18:23:59.22 0.3 undecidable manual S 85 3.7962 156 -0.25 71
IV.ATVO.HHZ. 2023-04-21T18:23:59.11 0.1 positive manual P 181 10.5783 129 0.15 96
IV.ATPI.HNZ. 2023-04-21T18:23:58.88 0.3 undecidable manual S 191 3.0969 160 -0.48 68
IV.ATPC.HHE. 2023-04-21T18:23:58.10 0.1 undecidable manual P 85 3.7962 156 0 100
IV.APEC.HNZ. 2023-04-21T18:23:58.76 0.1 positive manual P 5 8.9799 133 0.05 98
IV.ATPI.HNZ. 2023-04-21T18:23:57.90 0.1 positive manual P 191 3.0969 160 -0.14 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.APEC.HNN. ML:2.6 0.00588 0.16 AML other m 2023-04-21T18:24:00.80
IV.APEC.HHE. ML:2.5 0.004695 0.2 AML other m 2023-04-21T18:24:01.13
IV.ATVO.HHN. ML:2.3 0.00259 0.18 AML other m 2023-04-21T18:24:01.16
IV.ATVO.HNN. ML:2.3 0.0025549999999999995 0.74 AML other m 2023-04-21T18:24:01.16
IV.ATVO.HHE. ML:2.5 0.004543828 0.1792 AML other m 2023-04-21T18:24:01.32
IV.ATVO.HNE. ML:2.5 0.004475 0.62 AML other m 2023-04-21T18:24:01.32
IV.BADI.EHE. ML:2.2 0.0018525994999999999 0.128 AML other m 2023-04-21T18:24:02.09
IV.BADI.EHN. ML:2.3 0.0020949999999999996 0.14 AML other m 2023-04-21T18:24:02.23
IV.ATFO.HHN. ML:2.2 0.001331212 0.2816 AML other m 2023-04-21T18:24:03.54
IV.ATFO.HNN. ML:2.2 0.001254842 0.2944 AML other m 2023-04-21T18:24:03.54
IV.ATFO.HHE. ML:2.3 0.0017999999999999997 0.14 AML other m 2023-04-21T18:24:03.82
IV.ATFO.HNE. ML:2.3 0.0016799999999999999 0.52 AML other m 2023-04-21T18:24:03.82
IV.NARO.HHE. ML:1.8 0.0005444387 0.064 AML other m 2023-04-21T18:24:04.37
IV.NARO.HHN. ML:1.8 0.0004899831 0.0768 AML other m 2023-04-21T18:24:04.83
IV.MURB.HHE. ML:2.7 0.0028899999999999998 0.36 AML other m 2023-04-21T18:24:06.16
IV.MURB.HNE. ML:2.7 0.0029249999999999996 0.38 AML other m 2023-04-21T18:24:06.34
IV.FRON.EHE. ML:1.8 0.00034253414999999997 0.1408 AML other m 2023-04-21T18:24:06.69
IV.MURB.HNN. ML:2.6 0.0024699999999999995 0.16 AML other m 2023-04-21T18:24:06.83
IV.MURB.HHN. ML:2.7 0.00277 0.18 AML other m 2023-04-21T18:24:06.83
IV.FRON.EHN. ML:1.9 0.000479866 0.1024 AML other m 2023-04-21T18:24:07.06
IV.PE3.EHE. ML:2.2 0.0010785575000000001 0.5632 AML other m 2023-04-21T18:24:07.38
IV.PARC.HHN. ML:1.8 0.00036893584999999994 0.2816 AML other m 2023-04-21T18:24:07.81
IV.SSFR.HHE. ML:2.3 0.0010899999999999998 0.26 AML other m 2023-04-21T18:24:08.14
IV.SSFR.HNE. ML:2.4 0.0013199999999999998 0.14 AML other m 2023-04-21T18:24:08.14
IV.SSFR.HHN. ML:2.2 0.0008616532500000001 0.192 AML other m 2023-04-21T18:24:08.51
IV.SSFR.HNN. ML:2.3 0.001085 0.66 AML other m 2023-04-21T18:24:08.52
IV.MPAG.EHN. ML:1.6 0.0001935019 0.2432 AML other m 2023-04-21T18:24:08.70
IV.MPAG.EHE. ML:1.5 0.00013175202 0.1024 AML other m 2023-04-21T18:24:09.59
IV.FOSV.EHE. ML:1.5 0.000135711735 0.1024 AML other m 2023-04-21T18:24:09.57
IV.CAFI.HNN. ML:1.7 0.00017303505 0.2816 AML other m 2023-04-21T18:24:09.93
IV.ATCC.HNN. ML:2.2 0.0006655 0.76 AML other m 2023-04-21T18:24:09.59
IV.SSP9.EHE. ML:1.4 0.0001690573 0.384 AML other m 2023-04-21T18:24:10.25
IV.PE3.EHN. ML:2.2 0.001044193 0.3072 AML other m 2023-04-21T18:24:10.33
IV.ATCC.HNE. ML:2.3 0.0007894999999999999 0.46 AML other m 2023-04-21T18:24:10.50
IV.ATCC.EHE. ML:2.3 0.0007745 0.94 AML other m 2023-04-21T18:24:10.97
IV.ATCC.EHN. ML:2.1 0.0005389362 0.1664 AML other m 2023-04-21T18:24:10.59
IV.CRE.HHE. ML:1.6 0.00014133414999999998 0.2304 AML other m 2023-04-21T18:24:10.94
IV.ARVD.HHN. ML:1.6 0.00013591120000000002 0.2944 AML other m 2023-04-21T18:24:11.09
IV.ARVD.HHE. ML:1.7 0.00015263104999999999 0.2176 AML other m 2023-04-21T18:24:11.37
IV.CRE.HHN. ML:1.8 0.00020950000000000002 0.22 AML other m 2023-04-21T18:24:11.40
IV.CAFI.HHE. ML:1.9 0.00028349999999999995 0.22 AML other m 2023-04-21T18:24:11.58
IV.CAFI.HHN. ML:1.7 0.000192 0.52 AML other m 2023-04-21T18:24:11.37
IV.FOSV.HNN. ML:1.5 0.000129240515 0.3456 AML other m 2023-04-21T18:24:13.17
IV.SNTG.HHE. ML:1.8 0.000185 0.38 AML other m 2023-04-21T18:24:13.43
IV.FOSV.HNE. ML:1.6 0.0001715877 0.448 AML other m 2023-04-21T18:24:13.76
IV.SNTG.HHN. ML:2.1 0.0003285 0.22 AML other m 2023-04-21T18:24:14.04
IV.ASSB.HHN. ML:1.8 0.00017099999999999998 0.16 AML other m 2023-04-21T18:24:14.59
IV.FOSV.EHN. ML:1.6 0.00015190055 0.4224 AML other m 2023-04-21T18:24:14.60
IV.ASSB.HHE. ML:1.8 0.00015377815 0.2048 AML other m 2023-04-21T18:24:15.45
IV.MML1.HNE. ML:1.8 0.0001180659 0.3072 AML other m 2023-04-21T18:24:16.99
IV.MML1.HNN. ML:2.0 0.00018127254999999998 0.192 AML other m 2023-04-21T18:24:16.95
IV.MML1.EHN. ML:1.9 0.00016555 0.2 AML other m 2023-04-21T18:24:16.96
IV.MML1.EHE. ML:1.8 0.00011876700000000001 0.2048 AML other m 2023-04-21T18:24:17.56
IV.CING.HHN. ML:1.7 0.0000922 1.8 AML other m 2023-04-21T18:24:18.03
IV.MGAB.HHN. ML:2.3 0.0003180078 0.4992 AML other m 2023-04-21T18:24:21.06
IV.MGAB.HHE. ML:2.0 0.00019596195 0.2048 AML other m 2023-04-21T18:24:21.59
IV.FDMO.HHN. ML:1.7 0.0000838 0.18 AML other m 2023-04-21T18:24:22.18
IV.FDMO.HHE. ML:1.6 0.00006325 0.32 AML other m 2023-04-21T18:24:22.28
IV.CING.HHE. ML:1.6 0.0000708 0.46 AML other m 2023-04-21T18:24:22.69
IV.MOMA.HHE. ML:1.9 0.00013116214 0.2432 AML other m 2023-04-21T18:24:23.15
IV.MOMA.HHN. ML:1.4 0.000042113355000000006 0.2816 AML other m 2023-04-21T18:24:23.97
IV.SACS.HNN. ML:2.0 0.00015419345 0.6784 AML other m 2023-04-21T18:24:25.58
IV.SACS.HHN. ML:1.7 0.000068679275 0.2688 AML other m 2023-04-21T18:24:28.16
IV.CAFI.HNE. ML:1.9 0.0002570073 0.2176 AML other m 2023-04-21T18:24:11.58
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
Waveforms Seismic signals in miniseed + resp format Download