Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 19-04-2021 and time 02:07:41 (UTC) in region 4 km E Pietralunga (PG)

A magnitude ML 1.7 earthquake occured in region: 4 km E Pietralunga (PG), on

  • 19-04-2021 02:07:41 (UTC)
  • 19-04-2021 04:07:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4370, 12.4880 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 4 2111 2111
Gubbio PG 12 32216 34327
Cantiano PU 12 2245 36572
Apecchio PU 15 1882 38454
Scheggia e Pascelupo PG 15 1393 39847
Montone PG 15 1680 41527
Piobbico PU 17 2029 43556
Cagli PU 18 8731 52287
Umbertide PG 19 16681 68968

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km N of Perugia (166134 inhabitants)
49 Km E of Arezzo (99543 inhabitants)
56 Km NW of Foligno (57155 inhabitants)
62 Km SW of Fano (60888 inhabitants)
63 Km SW of Pesaro (94582 inhabitants)
70 Km S of Rimini (147750 inhabitants)
80 Km S of Cesena (96758 inhabitants)
86 Km W of Ancona (100861 inhabitants)
94 Km E of Siena (53903 inhabitants)
95 Km SE of Forlì (117913 inhabitants)
98 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 1.7 2021-04-19
02:07:41		 43.4368 12.4877 8 2021-07-12
16:55:12		 Bollettino Sismico Italiano INGV 90507511
Reviewed
Rev100 		ML 1.7 2021-04-19
02:07:41		 43.4357 12.4927 9 2021-04-19
02:19:14		 Sala Sismica INGV-Roma 89239201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-19 02:07:41 ± 0.04
Latitude 43.4368 ± 0.0018
Longitude 12.4877 ± 0.0025
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90507511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 201
Semi-minor axis of confidence ellipse (meter) 149
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 220
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) 35
Number of associated phases, regardless of their use for origin computation 64
Number of defining phases 61
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.62593
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 36
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 61
Type of magnitude ML
Reference to an origin 89239201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-19 02:19:14

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 61
Type of magnitude ML
Reference to an origin 90507511
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-26 10:10:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2021-04-19T02:08:04.30 0.3 undecidable manual S 123 69.4749 50 1.22 44
IV.MGAB.HHZ. 2021-04-19T02:08:02.70 0.3 undecidable manual S 208 65.5899 50 0.65 58
IV.CESI.HHZ. 2021-04-19T02:08:00.88 0.3 undecidable manual S 145 58.5969 50 0.7 57
IV.EL6.EHZ. 2021-04-19T02:07:58.38 0.3 undecidable manual S 103 50.9157 50 0.25 66
IV.MF5.EHZ. 2021-04-19T02:07:57.94 3.0 undecidable manual P 0.57 0
IV.CAFI.HHZ. 2021-04-19T02:07:56.19 0.3 undecidable manual S 254 43.7229 50 -0.01 70
IV.ASSB.HHZ. 2021-04-19T02:07:56.75 0.3 undecidable manual S 162 45.9207 50 -0.03 70
IV.ARVD.HHZ. 2021-04-19T02:07:54.23 0.1 undecidable manual S 79 37.1295 50 -0.23 91
IV.MGAB.HHZ. 2021-04-19T02:07:53.23 0.1 positive manual P 208 65.5899 50 -0.13 88
IV.CSP1.EHZ. 2021-04-19T02:07:53.99 0.3 undecidable manual P 123 69.4749 50 0.04 67
IV.FDMO.HHZ. 2021-04-19T02:07:53.18 0.1 negative manual P 132 65.7897 50 -0.2 87
IV.SSP9.EHZ. 2021-04-19T02:07:53.23 0.3 undecidable manual S 298 32.4453 105 0.11 71
IV.CESI.HHZ. 2021-04-19T02:07:52.15 0.1 undecidable manual P 145 58.5969 50 -0.13 89
IV.ATCC.EHZ. 2021-04-19T02:07:52.75 0.3 undecidable manual S 156 30.5472 105 0.27 68
IV.FOSV.EHZ. 2021-04-19T02:07:51.46 0.1 undecidable manual S 125 27.1506 107 0.12 95
IV.CRE.HHZ. 2021-04-19T02:07:50.42 0.1 undecidable manual P 295 47.619 50 -0.17 90
IV.CRTC.HHZ. 2021-04-19T02:07:50.78 3.0 undecidable manual P 0.22 0
IV.SSFR.HNZ. 2021-04-19T02:07:50.14 0.1 undecidable manual S 90 23.754 110 -0.09 96
IV.COR1.EHZ. 2021-04-19T02:07:50.72 0.1 undecidable manual P 62 46.5201 50 0.29 88
IV.EL6.EHZ. 2021-04-19T02:07:50.84 0.1 positive manual P 103 50.9157 50 -0.26 88
IV.CAFI.HHZ. 2021-04-19T02:07:49.72 0.1 positive manual P 254 43.7229 50 -0.27 89
IV.BADI.EHZ. 2021-04-19T02:07:49.56 0.1 undecidable manual S 292 21.1677 112 0.16 95
IV.FRON.EHZ. 2021-04-19T02:07:49.34 0.3 undecidable manual S 65 21.1677 112 -0.06 73
IV.ASSB.HHZ. 2021-04-19T02:07:49.87 0.1 undecidable manual P 162 45.9207 50 -0.45 85
IV.SSP9.EHZ. 2021-04-19T02:07:48.04 0.1 undecidable manual P 298 32.4453 105 -0.17 93
IV.ARVD.HHZ. 2021-04-19T02:07:48.67 0.1 positive manual P 79 37.1295 50 -0.31 89
IV.NARO.HHZ. 2021-04-19T02:07:48.67 0.3 undecidable manual S 21 20.6682 112 -0.58 64
IV.MURB.HHZ. 2021-04-19T02:07:48.52 0.3 undecidable manual S 171 19.5693 113 -0.35 69
IV.APEC.HHZ. 2021-04-19T02:07:47.61 0.3 undecidable manual S 338 14.5743 120 0.28 70
IV.PARC.HHZ. 2021-04-19T02:07:47.76 0.1 undecidable manual P 320 30.8469 105 -0.14 94
IV.ATLO.EHN. 2021-04-19T02:07:47.30 0.3 undecidable manual S 206 14.9739 119 -0.16 72
IV.MPAG.EHZ. 2021-04-19T02:07:47.60 0.1 positive manual P 46 30.5472 105 -0.24 92
IV.ATSC.EHE. 2021-04-19T02:07:47.89 0.1 undecidable manual S 95 16.0728 118 0.1 97
IV.ATCC.EHZ. 2021-04-19T02:07:47.71 0.1 positive manual P 156 30.5472 105 -0.12 94
IV.PE3.EHZ. 2021-04-19T02:07:47.49 0.1 undecidable manual P 1 28.749 106 -0.01 97
IV.ATVA.EHN. 2021-04-19T02:07:46.56 0.1 undecidable manual P 223 23.9538 109 -0.02 97
IV.CDCA.HNZ. 2021-04-19T02:07:46.09 3.0 undecidable manual P 0.09 0
IV.ATMI.HHZ. 2021-04-19T02:07:46.00 0.1 positive manual P 237 21.0678 112 -0.04 97
IV.ATMC.EHE. 2021-04-19T02:07:46.44 0.1 positive manual P 273 23.754 110 -0.11 96
IV.FOSV.EHZ. 2021-04-19T02:07:46.88 0.1 undecidable manual P 125 27.1506 107 -0.3 91
IV.PIEI.HHZ. 2021-04-19T02:07:46.82 0.1 undecidable manual S 19 11.5773 126 0.35 93
IV.SSFR.HNZ. 2021-04-19T02:07:46.39 0.1 positive manual P 90 23.754 110 -0.15 95
IV.BADI.EHZ. 2021-04-19T02:07:46.13 0.1 positive manual P 292 21.1677 112 0.07 97
IV.ATBU.EHE. 2021-04-19T02:07:45.43 0.3 undecidable manual S 49 6.4935 142 0.24 72
IV.FRON.EHZ. 2021-04-19T02:07:45.99 0.1 positive manual P 65 21.1677 112 -0.07 97
IV.ATSC.EHE. 2021-04-19T02:07:45.24 0.1 positive manual P 95 16.0728 118 0.11 97
IT.UMBT.HGZ. 2021-04-19T02:07:45.85 0.1 undecidable manual P 218 18.7701 114 0.24 94
IV.TB02.DHE.01 2021-04-19T02:07:45.90 0.3 undecidable manual S 221 9.6792 131 -0.05 74
IV.APEC.HHZ. 2021-04-19T02:07:45.05 0.1 positive manual P 338 14.5743 120 0.19 95
IV.ATFO.HHZ. 2021-04-19T02:07:45.90 0.3 undecidable manual S 139 10.2786 129 -0.22 72
IV.ATLO.EHN. 2021-04-19T02:07:45.03 0.1 positive manual P 206 14.9739 119 0.09 97
IV.TB01.DHE.01 2021-04-19T02:07:45.21 0.3 undecidable manual S 214 7.3815 139 -0.18 73
IV.NARO.HHZ. 2021-04-19T02:07:45.87 0.1 positive manual P 21 20.6682 112 -0.1 96
IV.ATPI.HNE. 2021-04-19T02:07:45.19 0.1 undecidable manual S 283 7.0929 140 -0.11 98
IV.MURB.HHZ. 2021-04-19T02:07:45.82 0.1 positive manual P 171 19.5693 113 0.07 97
IV.PIEI.HHZ. 2021-04-19T02:07:44.54 0.1 positive manual P 19 11.5773 126 0.17 96
IV.ATPC.HHE. 2021-04-19T02:07:44.94 0.1 undecidable manual S 333 5.4945 147 -0.03 100
IV.TB02.DHE.01 2021-04-19T02:07:44.15 0.1 positive manual P 221 9.6792 131 0.08 98
IV.ATFO.HHZ. 2021-04-19T02:07:44.15 0.1 positive manual P 139 10.2786 129 -0.01 100
IV.ATPC.HHE. 2021-04-19T02:07:43.63 0.1 negative manual P 333 5.4945 147 0.13 98
IV.TB01.DHE.01 2021-04-19T02:07:43.79 0.1 positive manual P 214 7.3815 139 0.05 99
IV.ATPI.HNE. 2021-04-19T02:07:43.81 0.1 positive manual P 283 7.0929 140 0.12 98
IV.ATBU.EHE. 2021-04-19T02:07:43.91 0.1 positive manual P 49 6.4935 142 0.28 95
IV.TB03.DH2.01 2021-04-19T02:07:43.78 0.1 positive manual P 238 7.3815 139 0.05 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHN. ML:1.6 0.0006464191999999999 0.2 AML other m 2021-04-19T02:07:47.15
IV.PIEI.HHE. ML:2.0 0.00138203 0.1392 AML other m 2021-04-19T02:07:47.24
IV.PIEI.HHN. ML:2.1 0.0016108237500000002 0.1808 AML other m 2021-04-19T02:07:47.24
IV.APEC.HNN. ML:1.9 0.0008844399000000001 0.2208 AML other m 2021-04-19T02:07:47.97
IV.APEC.HHE. ML:1.7 0.0005695 0.22 AML other m 2021-04-19T02:07:47.95
IV.APEC.HHN. ML:1.8 0.0007059999999999999 0.2 AML other m 2021-04-19T02:07:47.96
IV.ATFO.HHE. ML:1.7 0.00071888195 0.2 AML other m 2021-04-19T02:07:48.21
IV.MURB.HNE. ML:2.2 0.001115321 0.36 AML other m 2021-04-19T02:07:49.39
IV.MURB.HHE. ML:2.2 0.0012308705 0.36 AML other m 2021-04-19T02:07:49.39
IV.NARO.HHN. ML:1.6 0.00031773094999999995 0.0608 AML other m 2021-04-19T02:07:49.26
IV.FRON.EHN. ML:1.8 0.00047281745 0.1008 AML other m 2021-04-19T02:07:49.78
IV.MURB.HHN. ML:2.1 0.00102037505 0.12 AML other m 2021-04-19T02:07:49.88
IV.MURB.HNN. ML:2.1 0.0008991433 0.1088 AML other m 2021-04-19T02:07:49.88
IV.BADI.EHE. ML:2.1 0.0009075 0.14 AML other m 2021-04-19T02:07:49.96
IV.NARO.HHE. ML:1.7 0.0003890945 0.0608 AML other m 2021-04-19T02:07:49.95
IV.BADI.EHN. ML:2.0 0.0007030000000000001 1.76 AML other m 2021-04-19T02:07:50.96
IV.ATMI.HHE. ML:1.7 0.00034729149999999996 0.2208 AML other m 2021-04-19T02:07:50.20
IV.ATMI.HHN. ML:1.7 0.0003501774 0.1808 AML other m 2021-04-19T02:07:50.19
IV.FRON.EHE. ML:1.4 0.00019784839999999998 0.1392 AML other m 2021-04-19T02:07:50.28
IV.SSFR.HNN. ML:2.2 0.0010746103499999998 0.0592 AML other m 2021-04-19T02:07:51.06
IV.SSFR.HNE. ML:2.2 0.0010396578 0.0496 AML other m 2021-04-19T02:07:51.22
IV.FOSV.EHE. ML:1.2 0.00008590275 0.1008 AML other m 2021-04-19T02:07:52.43
IV.FOSV.EHN. ML:1.2 0.00008020579 0.12 AML other m 2021-04-19T02:07:52.54
IV.SSFR.HHE. ML:2.0 0.00061724235 0.1808 AML other m 2021-04-19T02:07:52.85
IV.SSFR.HHN. ML:2.1 0.0008280000000000001 0.2 AML other m 2021-04-19T02:07:52.95
IV.ATCC.EHE. ML:2.1 0.0005734122 0.24 AML other m 2021-04-19T02:07:52.99
IV.PE3.EHE. ML:1.9 0.000371 1.7 AML other m 2021-04-19T02:07:52.04
IV.ATCC.EHN. ML:2.0 0.00043582360000000005 0.1616 AML other m 2021-04-19T02:07:53.10
IV.PARC.HHN. ML:1.4 0.0001325 0.2 AML other m 2021-04-19T02:07:54.29
IV.ARVD.HHN. ML:1.4 0.00010200612000000001 0.12 AML other m 2021-04-19T02:07:54.56
IV.PE3.EHN. ML:2.0 0.00053362215 0.48 AML other m 2021-04-19T02:07:54.65
IV.MPAG.EHE. ML:1.2 0.000078178765 0.1008 AML other m 2021-04-19T02:07:54.78
IV.MPAG.HNE. ML:1.3 0.00009480704500000001 0.1104 AML other m 2021-04-19T02:07:54.72
IV.MPAG.EHN. ML:1.2 0.00007695060500000001 0.16 AML other m 2021-04-19T02:07:55.34
IV.ARVD.HHE. ML:1.5 0.000115868245 0.1408 AML other m 2021-04-19T02:07:55.42
IV.PARC.HHE. ML:1.3 0.00009049044 1.7792 AML other m 2021-04-19T02:07:55.89
IV.SSP9.EHE. ML:1.1 0.000058580729999999995 1.4192 AML other m 2021-04-19T02:07:56.85
IV.CAFI.HHN. ML:1.2 0.00004517218500000001 0.1184 AML other m 2021-04-19T02:07:57.26
IV.CAFI.HHE. ML:1.2 0.00004478734 0.2016 AML other m 2021-04-19T02:07:57.44
IV.ASSB.HHN. ML:1.6 0.00010351560999999999 0.12 AML other m 2021-04-19T02:07:57.73
IV.ASSB.HHE. ML:1.5 0.00010027606 0.28 AML other m 2021-04-19T02:07:57.80
IV.CRE.HHE. ML:1.3 0.0000618 0.18 AML other m 2021-04-19T02:07:58.36
IV.CRE.HHN. ML:1.6 0.00011185272000000001 0.2192 AML other m 2021-04-19T02:07:58.32
IV.EL6.EHE. ML:1.5 0.00008902769 0.1408 AML other m 2021-04-19T02:07:59.87
IV.EL6.EHN. ML:1.7 0.0001245 0.18 AML other m 2021-04-19T02:08:00.24
IV.COR1.EHN. ML:1.8 0.00017780335 0.2 AML other m 2021-04-19T02:08:00.58
IV.SSP9.EHN. ML:1.1 0.000057812035 1.32 AML other m 2021-04-19T02:08:00.89
IV.COR1.EHE. ML:1.5 0.00008425462 1.7408 AML other m 2021-04-19T02:08:00.02
IV.CESI.HHE. ML:1.3 0.000046988559999999997 0.1392 AML other m 2021-04-19T02:08:01.09
IV.CESI.HHN. ML:1.2 0.000037087425 1.8 AML other m 2021-04-19T02:08:03.95
IV.MGAB.HHE. ML:1.9 0.00014028785 0.3008 AML other m 2021-04-19T02:08:03.42
IV.FDMO.HHE. ML:1.3 0.0000373 0.16 AML other m 2021-04-19T02:08:03.71
IV.FDMO.HHN. ML:1.3 0.00004248678 0.16 AML other m 2021-04-19T02:08:03.90
IV.MGAB.HNE. ML:2.0 0.00016329949999999998 0.3696 AML other m 2021-04-19T02:08:04.55
IV.MGAB.HNN. ML:2.0 0.000185059895 0.2496 AML other m 2021-04-19T02:08:04.61
IV.MGAB.HHN. ML:2.1 0.00021799999999999999 0.26 AML other m 2021-04-19T02:08:04.62
IV.CSP1.EHN. ML:1.7 0.00008404304 1.7008 AML other m 2021-04-19T02:08:04.03
IV.CRTC.HHN. ML:1.6 0.00010714999999999999 1.32 AML other m 2021-04-19T02:08:05.71
IV.CSP1.EHE. ML:1.7 0.00009035 0.38 AML other m 2021-04-19T02:08:08.39
IV.MF5.EHE. ML:1.6 0.00004705524 0.36 AML other m 2021-04-19T02:08:14.56
IV.MF5.EHN. ML:1.6 0.000041334099499999996 0.4208 AML other m 2021-04-19T02:08:19.70
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