Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 19-10-2021 and time 20:36:20 (UTC) in region 3 km SE Pietralunga (PG)

A magnitude ML 1.5 earthquake occured in region: 3 km SE Pietralunga (PG), on

  • 19-10-2021 20:36:20 (UTC)
  • 19-10-2021 22:36:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4270, 12.4660 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
Pietralunga PG 3 2111 2111
Gubbio PG 12 32216 34327
Montone PG 13 1680 36007
Cantiano PU 14 2245 38252
Apecchio PU 15 1882 40134
Scheggia e Pascelupo PG 17 1393 41527
Umbertide PG 17 16681 58208
Piobbico PU 18 2029 60237
Città di Castello PG 19 39913 100150
Cagli PU 20 8731 108881

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km N of Perugia (166134 inhabitants)
47 Km E of Arezzo (99543 inhabitants)
56 Km NW of Foligno (57155 inhabitants)
64 Km SW of Fano (60888 inhabitants)
65 Km SW of Pesaro (94582 inhabitants)
71 Km S of Rimini (147750 inhabitants)
81 Km S of Cesena (96758 inhabitants)
88 Km W of Ancona (100861 inhabitants)
92 Km E of Siena (53903 inhabitants)
95 Km SE of Forlì (117913 inhabitants)
97 Km N of Terni (111501 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 2021-10-19
20:36:20		 43.4273 12.4662 9 2022-03-30
13:04:15		 Bollettino Sismico Italiano INGV 97376591
Reviewed
Rev100 		ML 1.5 2021-10-19
20:36:21		 43.4292 12.4717 8 2021-10-19
20:41:16		 Sala Sismica INGV-Roma 96772511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-19 20:36:20 ± 0.03
Latitude 43.4273 ± 0.0018
Longitude 12.4662 ± 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 97376591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 158
Semi-minor axis of confidence ellipse (meter) 130
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 207
Circular confidence region, given by single value of horizontal uncertainty (meter) 160.0
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 75
Number of defining phases 75
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) 0.04856
Epicentral distance of station farthest from the epicenter (degree) 0.82018
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 39
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 52
Type of magnitude ML
Reference to an origin 96772511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-19 20:41:16

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 97376591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-10 10:48:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2021-10-19T20:36:41.84 0.3 undecidable manual S 131 66.378 50 0.34 63
IV.MGAB.HHZ. 2021-10-19T20:36:41.18 0.3 undecidable manual S 207 63.8916 50 0.33 63
IV.CESI.HHZ. 2021-10-19T20:36:39.75 0.3 undecidable manual S 143 58.7967 50 0.27 65
IV.CING.HHZ. 2021-10-19T20:36:39.69 0.3 undecidable manual S 95 59.0964 50 0.13 67
IV.MML1.EHZ. 2021-10-19T20:36:38.40 0.3 undecidable manual S 130 53.7018 50 0.28 65
IV.EL6.EHZ. 2021-10-19T20:36:37.99 0.3 undecidable manual S 102 52.4031 50 0.21 66
IV.MMO1.EHZ. 2021-10-19T20:36:36.54 0.3 undecidable manual P 130 91.0422 50 -0.02 64
IV.CRE.HHZ. 2021-10-19T20:36:36.46 0.3 undecidable manual S 297 46.5201 50 0.25 67
IV.ASSB.HHZ. 2021-10-19T20:36:35.87 0.3 undecidable manual S 160 45.4212 50 -0.06 69
IV.SNTG.HHZ. 2021-10-19T20:36:35.33 0.3 undecidable manual S 116 42.8238 50 0.11 69
IV.ARVD.HHZ. 2021-10-19T20:36:34.12 0.3 undecidable manual S 78 39.0276 50 -0.11 70
IV.CAFI.HHZ. 2021-10-19T20:36:34.77 0.3 undecidable manual S 255 41.7249 50 -0.17 68
IV.CSP1.EHZ. 2021-10-19T20:36:33.36 0.3 undecidable manual P 122 70.374 50 -0.01 67
IV.MGAB.HHZ. 2021-10-19T20:36:32.46 0.3 undecidable manual P 207 63.8916 50 0.08 67
IV.SSP9.EHZ. 2021-10-19T20:36:32.08 0.6 undecidable manual S 301 31.4463 105 -0.05 48
IV.ATCC.EHZ. 2021-10-19T20:36:32.07 0.3 undecidable manual S 152 30.3474 106 0.32 67
IV.FDMO.HHZ. 2021-10-19T20:36:32.58 0.3 undecidable manual P 131 66.378 50 -0.18 65
IV.MPAG.EHZ. 2021-10-19T20:36:32.24 0.3 undecidable manual S 46 32.5452 50 -0.24 68
IV.FOSV.EHZ. 2021-10-19T20:36:31.06 0.3 undecidable manual S 122 27.9498 107 0.1 71
IV.CESI.HHZ. 2021-10-19T20:36:31.42 0.3 undecidable manual P 143 58.7967 50 -0.17 66
IV.PARC.HHZ. 2021-10-19T20:36:31.76 0.3 undecidable manual S 323 30.6471 106 -0.09 71
IV.PE3.EHZ. 2021-10-19T20:36:31.44 0.6 undecidable manual S 5 29.9478 106 -0.17 47
IV.CING.HHZ. 2021-10-19T20:36:31.70 0.3 undecidable manual P 95 59.0964 50 0.07 68
IV.EL6.EHZ. 2021-10-19T20:36:30.33 0.3 undecidable manual P 102 52.4031 50 -0.28 66
IV.MML1.EHZ. 2021-10-19T20:36:30.52 0.1 undecidable manual P 130 53.7018 50 -0.28 87
IV.COR1.EHZ. 2021-10-19T20:36:30.29 0.3 undecidable manual P 62 48.618 50 0.27 66
IV.ATMC.EHZ. 2021-10-19T20:36:29.11 0.3 undecidable manual S 276 22.1556 111 0.06 72
IV.CRE.HHZ. 2021-10-19T20:36:29.68 0.3 undecidable manual P 297 46.5201 50 -0.02 70
IV.ASSB.HHZ. 2021-10-19T20:36:29.28 0.3 undecidable manual P 160 45.4212 50 -0.25 67
IV.FRON.EHZ. 2021-10-19T20:36:29.31 0.3 undecidable manual S 64 23.1546 111 -0.08 72
IV.SSFR.HHZ. 2021-10-19T20:36:29.84 0.3 undecidable manual S 88 25.4523 109 -0.3 68
IV.ARVD.HHZ. 2021-10-19T20:36:28.36 0.1 positive manual P 78 39.0276 50 -0.19 91
IV.BADI.EHZ. 2021-10-19T20:36:28.74 0.6 undecidable manual S 297 20.0688 113 0.36 45
IV.ATVA.EHE. 2021-10-19T20:36:28.35 0.3 undecidable manual S 222 22.0668 111 -0.67 62
IV.CAFI.HHZ. 2021-10-19T20:36:28.75 0.3 undecidable manual P 255 41.7249 50 -0.22 68
IV.NARO.HHZ. 2021-10-19T20:36:28.89 0.3 undecidable manual S 24 22.3554 111 -0.23 70
IV.ATMI.HHZ. 2021-10-19T20:36:28.16 0.3 undecidable manual S 237 19.0698 115 0.1 72
IV.SNTG.HHZ. 2021-10-19T20:36:28.71 0.3 undecidable manual P 116 42.8238 50 -0.41 65
IV.MURB.HHZ. 2021-10-19T20:36:28.45 0.6 undecidable manual S 165 18.87 115 0.45 45
IV.ATCC.EHZ. 2021-10-19T20:36:27.03 0.3 undecidable manual P 152 30.3474 106 -0.09 71
IV.MPAG.EHZ. 2021-10-19T20:36:27.25 0.1 undecidable manual P 46 32.5452 50 -0.29 90
IV.SSP9.EHZ. 2021-10-19T20:36:27.41 0.3 undecidable manual P 301 31.4463 105 0.06 71
IV.ATSC.EHZ. 2021-10-19T20:36:27.74 0.3 undecidable manual S 91 17.7711 116 0.08 73
IV.PARC.HHZ. 2021-10-19T20:36:27.00 0.6 undecidable manual P 323 30.6471 106 -0.18 46
IV.PE3.EHZ. 2021-10-19T20:36:27.16 0.3 undecidable manual P 5 29.9478 106 0.12 71
IV.APEC.HHZ. 2021-10-19T20:36:27.01 0.3 undecidable manual S 346 14.9739 120 0.19 71
IV.ATLO.EHZ. 2021-10-19T20:36:26.39 0.3 undecidable manual S 201 13.2756 123 0.07 73
IV.SSFR.HHZ. 2021-10-19T20:36:26.00 0.3 undecidable manual P 88 25.4523 109 -0.2 70
IV.PIEI.HHZ. 2021-10-19T20:36:26.50 0.3 undecidable manual S 25 13.2756 123 0.21 71
IV.FOSV.EHZ. 2021-10-19T20:36:26.39 0.3 undecidable manual P 122 27.9498 107 -0.28 68
IV.ATBU.EHZ. 2021-10-19T20:36:25.36 0.3 undecidable manual S 51 8.4804 136 0.34 70
IV.FRON.EHZ. 2021-10-19T20:36:25.68 0.3 undecidable manual P 64 23.1546 111 -0.08 72
IV.ATFO.HHZ. 2021-10-19T20:36:25.46 0.3 undecidable manual S 128 10.878 129 -0.16 72
IV.MURB.HHZ. 2021-10-19T20:36:25.06 0.3 undecidable manual P 165 18.87 115 0.1 72
IV.ATMC.EHZ. 2021-10-19T20:36:25.60 0.1 undecidable manual P 276 22.1556 111 0.04 97
IV.BADI.EHZ. 2021-10-19T20:36:25.36 0.1 positive manual P 297 20.0688 113 0.18 94
IV.ATVA.EHE. 2021-10-19T20:36:25.68 0.1 undecidable manual P 222 22.0668 111 0.13 95
IV.NARO.HHZ. 2021-10-19T20:36:25.49 0.1 undecidable manual P 24 22.3554 111 -0.11 95
IV.ATMI.HHZ. 2021-10-19T20:36:24.96 0.3 undecidable manual P 237 19.0698 115 -0.03 73
IV.ATSC.EHZ. 2021-10-19T20:36:24.88 0.1 undecidable manual P 91 17.7711 116 0.12 96
IV.TB01.DHZ.01 2021-10-19T20:36:24.12 0.1 undecidable manual S 206 5.6943 147 -0.28 95
IV.APEC.HHZ. 2021-10-19T20:36:24.48 0.3 undecidable manual P 346 14.9739 120 0.2 71
IV.TB02.DHZ.01 2021-10-19T20:36:24.80 0.1 undecidable manual S 216 7.7811 138 -0.05 99
IV.ATPC.HNZ. 2021-10-19T20:36:24.44 0.3 undecidable manual S 353 5.994 145 -0.02 75
IV.ATLO.EHZ. 2021-10-19T20:36:24.16 0.1 undecidable manual P 201 13.2756 123 0.17 96
IV.ATPI.EHZ. 2021-10-19T20:36:24.18 0.3 undecidable manual S 297 5.7942 146 -0.24 72
IV.TB03.DHZ.01 2021-10-19T20:36:24.05 0.1 undecidable manual S 237 5.3946 148 -0.29 95
IV.PIEI.HHZ. 2021-10-19T20:36:24.14 0.1 undecidable manual P 25 13.2756 123 0.17 96
IV.ATBU.EHZ. 2021-10-19T20:36:23.52 0.1 undecidable manual P 51 8.4804 136 0.28 94
IV.ATFO.HHZ. 2021-10-19T20:36:23.61 0.1 positive manual P 128 10.878 129 0.02 99
IV.TB02.DHZ.01 2021-10-19T20:36:23.28 0.1 undecidable manual P 216 7.7811 138 0.14 97
IV.ATPC.HNZ. 2021-10-19T20:36:23.04 0.1 undecidable manual P 353 5.994 145 0.13 98
IV.ATPI.EHZ. 2021-10-19T20:36:22.96 0.1 undecidable manual P 297 5.7942 146 0.07 99
IV.TB03.DHZ.01 2021-10-19T20:36:22.87 0.1 undecidable manual P 237 5.3946 148 0.02 100
IV.TB01.DHZ.01 2021-10-19T20:36:22.91 0.1 undecidable manual P 206 5.6943 147 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.EHN. ML:1.9 0.0013700000000000001 0.36 AML other m 2021-10-19T20:36:24.30
IV.ATPI.HNE. ML:1.9 0.00157 0.52 AML other m 2021-10-19T20:36:24.64
IV.ATPI.EHE. ML:1.9 0.00148 0.5 AML other m 2021-10-19T20:36:24.64
IV.ATPI.HNN. ML:1.9 0.001395 0.44 AML other m 2021-10-19T20:36:25.26
IV.ATFO.HHE. ML:1.9 0.0009725000000000001 0.2 AML other m 2021-10-19T20:36:26.26
IV.ATFO.HHN. ML:1.7 0.000665 0.42 AML other m 2021-10-19T20:36:26.91
IV.APEC.HHN. ML:1.4 0.000234 0.44 AML other m 2021-10-19T20:36:27.48
IV.MURB.HNE. ML:1.8 0.0005484999999999999 1.02 AML other m 2021-10-19T20:36:28.85
IV.ATMI.HHE. ML:1.5 0.0002415 0.86 AML other m 2021-10-19T20:36:28.52
IV.MURB.HHE. ML:1.8 0.000587 0.24 AML other m 2021-10-19T20:36:29.16
IV.MURB.HHN. ML:1.8 0.0005024999999999999 1.2 AML other m 2021-10-19T20:36:29.88
IV.ATMI.HHN. ML:1.5 0.000236 0.42 AML other m 2021-10-19T20:36:29.58
IV.APEC.HHE. ML:1.4 0.0002635 0.38 AML other m 2021-10-19T20:36:29.22
IV.NARO.HHE. ML:1.4 0.0001525 0.3 AML other m 2021-10-19T20:36:29.61
IV.FRON.EHE. ML:1.4 0.000164 0.72 AML other m 2021-10-19T20:36:29.14
IV.BADI.EHN. ML:1.9 0.000611 0.26 AML other m 2021-10-19T20:36:29.50
IV.BADI.EHE. ML:1.9 0.0006145 0.18 AML other m 2021-10-19T20:36:29.62
IV.NARO.HHN. ML:1.3 0.000133 0.76 AML other m 2021-10-19T20:36:29.21
IV.FRON.EHN. ML:1.6 0.000272 0.28 AML other m 2021-10-19T20:36:29.63
IV.MURB.HNN. ML:1.7 0.00040399999999999995 0.18 AML other m 2021-10-19T20:36:30.49
IV.SSFR.HHN. ML:1.8 0.0004195 0.26 AML other m 2021-10-19T20:36:31.08
IV.SSFR.HNN. ML:2.0 0.0005735 0.26 AML other m 2021-10-19T20:36:31.08
IV.SSFR.HHE. ML:1.6 0.000247 0.54 AML other m 2021-10-19T20:36:31.57
IV.FOSV.EHN. ML:1.2 0.0000843 0.64 AML other m 2021-10-19T20:36:31.31
IV.SSFR.HNE. ML:1.9 0.0004545 0.24 AML other m 2021-10-19T20:36:31.50
IV.FOSV.EHE. ML:1.2 0.00008365 0.26 AML other m 2021-10-19T20:36:31.85
IV.ATCC.EHN. ML:2.0 0.0005225 0.18 AML other m 2021-10-19T20:36:32.37
IV.MPAG.EHE. ML:1.2 0.00007885 0.74 AML other m 2021-10-19T20:36:32.48
IV.ATCC.EHE. ML:1.7 0.000264 0.64 AML other m 2021-10-19T20:36:32.50
IV.MPAG.EHN. ML:1.2 0.00007575000000000001 0.34 AML other m 2021-10-19T20:36:32.49
IV.PARC.HHN. ML:1.5 0.0001585 0.22 AML other m 2021-10-19T20:36:33.42
IV.PE3.EHN. ML:1.3 0.00009470000000000001 0.22 AML other m 2021-10-19T20:36:34.18
IV.ARVD.HHE. ML:1.3 0.00007615 0.54 AML other m 2021-10-19T20:36:34.47
IV.PARC.HHE. ML:1.4 0.0001105 1.3 AML other m 2021-10-19T20:36:34.31
IV.ARVD.HHN. ML:1.2 0.00005805 0.36 AML other m 2021-10-19T20:36:35.37
IV.SNTG.HHE. ML:1.4 0.0000908 1.58 AML other m 2021-10-19T20:36:35.15
IV.CAFI.HHN. ML:1.2 0.0000523 1.18 AML other m 2021-10-19T20:36:36.63
IV.CAFI.HHE. ML:1.3 0.00005755 0.62 AML other m 2021-10-19T20:36:36.42
IV.SNTG.HHN. ML:1.6 0.0001265 0.3 AML other m 2021-10-19T20:36:36.90
IV.ASSB.HHN. ML:1.3 0.000060200000000000006 1.42 AML other m 2021-10-19T20:36:37.01
IV.CRE.HHE. ML:1.3 0.000057499999999999995 0.24 AML other m 2021-10-19T20:36:37.51
IV.CRE.HHN. ML:1.5 0.00009455 0.22 AML other m 2021-10-19T20:36:37.50
IV.PE3.EHE. ML:1.2 0.0000849 0.32 AML other m 2021-10-19T20:36:37.71
IV.ASSB.HHE. ML:1.2 0.0000521 0.12 AML other m 2021-10-19T20:36:38.38
IV.MML1.EHN. ML:1.5 0.00007935 0.26 AML other m 2021-10-19T20:36:39.07
IV.MML1.EHE. ML:1.5 0.00006934999999999999 0.34 AML other m 2021-10-19T20:36:39.83
IV.CESI.HHN. ML:1.3 0.000042300000000000005 1.7 AML other m 2021-10-19T20:36:41.12
IV.CESI.HHE. ML:1.2 0.00003645 1.5 AML other m 2021-10-19T20:36:41.95
IV.CING.HHN. ML:1.2 0.000028300000000000003 0.96 AML other m 2021-10-19T20:36:42.26
IV.FDMO.HHN. ML:1.2 0.0000323 0.12 AML other m 2021-10-19T20:36:43.10
IV.FDMO.HHE. ML:1.3 0.0000373 0.64 AML other m 2021-10-19T20:36:43.57
IV.MGAB.HHE. ML:1.5 0.00006264999999999999 0.72 AML other m 2021-10-19T20:36:43.38
IV.CING.HHE. ML:1.1 0.0000231 0.64 AML other m 2021-10-19T20:36:43.50
IV.MGAB.HHN. ML:1.6 0.00007455000000000001 0.2 AML other m 2021-10-19T20:36:44.42
IV.CSP1.EHN. ML:1.8 0.00010275 1.02 AML other m 2021-10-19T20:36:44.00
IV.CSP1.EHE. ML:1.8 0.00009865 1 AML other m 2021-10-19T20:36:45.24
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