Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 16-01-2021 and time 14:50:11 (Italy) in region 3 km E Pietralunga (PG)

A magnitude ML 1.8 earthquake occured in region: 3 km E Pietralunga (PG), on

  • 16-01-2021 13:50:11 (UTC)
  • 16-01-2021 14:50:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4420, 12.4740 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 3 2111 2111
Gubbio PG 13 32216 34327
Cantiano PU 13 2245 36572
Apecchio PU 14 1882 38454
Montone PG 15 1680 40134
Scheggia e Pascelupo PG 16 1393 41527
Piobbico PU 17 2029 43556
Cagli PU 18 8731 52287
Città di Castello PG 19 39913 92200
Umbertide PG 19 16681 108881

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km N of Perugia (166134 inhabitants)
48 Km E of Arezzo (99543 inhabitants)
57 Km NW of Foligno (57155 inhabitants)
63 Km SW of Fano (60888 inhabitants)
63 Km SW of Pesaro (94582 inhabitants)
69 Km S of Rimini (147750 inhabitants)
80 Km S of Cesena (96758 inhabitants)
87 Km W of Ancona (100861 inhabitants)
93 Km E of Siena (53903 inhabitants)
94 Km SE of Forlì (117913 inhabitants)
99 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 1.8 2021-01-16
13:50:11		 43.4422 12.474 8 2021-07-12
16:54:57		 Bollettino Sismico Italiano INGV 86942211
Reviewed
Rev100 		ML 1.8 2021-01-16
13:50:11		 43.4467 12.4797 8 2021-01-16
13:54:42		 Sala Sismica INGV-Roma 86304041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-16 13:50:11 ± 0.03
Latitude 43.4422 ± 0.0018
Longitude 12.4740 ± 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 86942211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 169
Semi-minor axis of confidence ellipse (meter) 67
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 352
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) 33
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 57
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.04047
Epicentral distance of station farthest from the epicenter (degree) 0.46945
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 45
Type of magnitude ML
Reference to an origin 86942211
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-08 15:51:48

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 86304041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-16 13:54:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2021-01-16T13:50:28.48 0.1 undecidable manual S 104 52.1034 50 0.35 86
IV.CRE.HHZ. 2021-01-16T13:50:26.33 0.3 undecidable manual S 295 46.3203 50 -0.26 66
IV.CAFI.HHZ. 2021-01-16T13:50:25.50 0.6 undecidable manual S 253 42.8238 50 -0.14 46
IV.ARVD.HHZ. 2021-01-16T13:50:24.19 0.1 undecidable manual S 80 38.1285 50 -0.2 91
IV.PARC.HHZ. 2021-01-16T13:50:22.13 0.3 undecidable manual S 321 29.748 106 0.24 69
IV.SSP9.EHZ. 2021-01-16T13:50:22.22 0.3 undecidable manual S 298 31.2465 105 -0.16 69
IV.ATCC.EHZ. 2021-01-16T13:50:22.69 0.3 undecidable manual S 155 31.5462 105 0.21 69
IV.MPAG.EHZ. 2021-01-16T13:50:22.44 0.3 undecidable manual S 48 30.9468 105 0.14 70
IV.PE3.EHZ. 2021-01-16T13:50:21.66 0.6 undecidable manual S 4 28.2495 107 0.27 46
IV.EL6.EHZ. 2021-01-16T13:50:21.00 0.6 undecidable manual P 104 52.1034 50 0.04 46
IV.CRE.HHZ. 2021-01-16T13:50:20.22 0.3 undecidable manual P 295 46.3203 50 0.15 68
IV.SSFR.HHZ. 2021-01-16T13:50:20.05 0.6 undecidable manual S 91 24.8529 109 -0.22 46
IV.MURB.HHZ. 2021-01-16T13:50:19.16 0.6 undecidable manual S 168 20.2686 113 0.37 45
IV.FRON.EHZ. 2021-01-16T13:50:19.19 0.3 undecidable manual S 67 21.9669 111 -0.13 71
IV.CAFI.HHZ. 2021-01-16T13:50:19.45 0.6 undecidable manual P 253 42.8238 50 -0.08 46
IV.ATVA.EHE. 2021-01-16T13:50:19.55 0.6 undecidable manual S 220 23.6541 110 -0.34 45
IV.CPGN.EHZ. 2021-01-16T13:50:19.85 0.6 undecidable manual P 343 41.7249 50 0.5 42
IV.ATMC.EHE. 2021-01-16T13:50:19.34 0.3 undecidable manual S 271 22.6551 110 -0.22 70
IV.ARVD.HHZ. 2021-01-16T13:50:18.47 0.1 undecidable manual P 80 38.1285 50 -0.34 88
IV.CDCA.HNZ. 2021-01-16T13:50:18.91 0.3 undecidable manual S 275 19.4694 113 0.39 68
IV.NARO.HHZ. 2021-01-16T13:50:18.48 0.6 undecidable manual S 25 20.5683 112 -0.4 45
IV.BADI.EHZ. 2021-01-16T13:50:18.65 0.3 undecidable manual S 292 19.9689 113 -0.03 73
IV.MPAG.EHZ. 2021-01-16T13:50:17.27 0.1 positive manual P 48 30.9468 105 -0.32 90
IV.FOSV.EHZ. 2021-01-16T13:50:17.08 1.0 undecidable manual P 125 28.3494 107 -0.01 24
IV.PARC.HHZ. 2021-01-16T13:50:17.30 0.6 undecidable manual P 321 29.748 106 -0.05 48
IV.SSP9.EHZ. 2021-01-16T13:50:17.69 0.6 undecidable manual P 298 31.2465 105 0.05 47
IV.ATLO.EHE. 2021-01-16T13:50:17.09 0.3 undecidable manual S 201 15.0738 119 -0.07 73
IV.ATSC.EHE. 2021-01-16T13:50:17.97 0.3 undecidable manual S 97 17.2716 116 0.15 71
IV.PE3.EHZ. 2021-01-16T13:50:17.21 0.1 undecidable manual P 4 28.2495 107 0.14 94
IV.ATCC.EHZ. 2021-01-16T13:50:17.60 0.1 undecidable manual P 155 31.5462 105 -0.1 94
IV.SSFR.HHZ. 2021-01-16T13:50:16.25 0.3 undecidable manual P 91 24.8529 109 -0.17 70
IV.APEC.HHZ. 2021-01-16T13:50:16.83 0.1 undecidable manual S 341 13.5753 122 0.1 97
IV.ATVA.EHE. 2021-01-16T13:50:16.29 0.6 undecidable manual P 220 23.6541 110 0.09 48
IV.PIEI.HHZ. 2021-01-16T13:50:16.55 0.3 undecidable manual S 25 11.4774 126 0.44 68
IV.TB02.DHZ.01 2021-01-16T13:50:15.52 0.3 undecidable manual S 213 9.4794 132 -0.06 74
IV.NARO.HHZ. 2021-01-16T13:50:15.42 0.1 undecidable manual P 25 20.5683 112 -0.2 94
IV.ATMC.EHE. 2021-01-16T13:50:15.88 0.3 undecidable manual P 271 22.6551 110 -0.13 71
IV.ATFO.HHZ. 2021-01-16T13:50:15.86 0.6 undecidable manual S 137 11.4774 126 -0.25 47
IV.ATSC.EHE. 2021-01-16T13:50:15.06 0.1 undecidable manual P 97 17.2716 116 0.05 97
IV.BADI.EHZ. 2021-01-16T13:50:15.49 0.1 undecidable manual P 292 19.9689 113 -0.02 97
IT.UMBT.HGZ. 2021-01-16T13:50:15.67 0.3 undecidable manual P 214 18.5703 114 0.42 67
IV.MURB.HHZ. 2021-01-16T13:50:15.73 0.1 undecidable manual P 168 20.2686 113 0.16 94
IV.CDCA.HNZ. 2021-01-16T13:50:15.44 0.3 undecidable manual P 275 19.4694 113 0.03 73
IV.FRON.EHZ. 2021-01-16T13:50:15.71 0.1 undecidable manual P 67 21.9669 111 -0.16 94
IV.ATLO.EHE. 2021-01-16T13:50:14.69 0.1 undecidable manual P 201 15.0738 119 0.06 97
IV.PIEI.HHZ. 2021-01-16T13:50:14.18 0.1 undecidable manual P 25 11.4774 126 0.16 96
IV.TB03.DHZ.01 2021-01-16T13:50:14.91 0.3 undecidable manual S 229 6.8931 141 -0.02 75
IV.ATFO.HHZ. 2021-01-16T13:50:14.08 0.1 undecidable manual P 137 11.4774 126 0.06 98
IV.TB01.DHZ.01 2021-01-16T13:50:14.92 0.1 undecidable manual S 205 7.3815 139 -0.14 97
IV.ATPI.EHZ. 2021-01-16T13:50:14.52 0.1 undecidable manual S 279 5.8941 145 -0.21 96
IV.APEC.HHZ. 2021-01-16T13:50:14.46 0.1 undecidable manual P 341 13.5753 122 0.09 97
IV.ATPC.HHE. 2021-01-16T13:50:14.32 0.1 undecidable manual S 342 4.4955 152 -0.16 97
IV.TB01.DHZ.01 2021-01-16T13:50:13.46 0.1 undecidable manual P 205 7.3815 139 0.05 99
IV.ATPI.EHZ. 2021-01-16T13:50:13.22 0.1 undecidable manual P 279 5.8941 145 0 100
IV.ATPC.HHE. 2021-01-16T13:50:13.13 0.1 undecidable manual P 342 4.4955 152 0.05 99
IV.TB02.DHZ.01 2021-01-16T13:50:13.77 0.1 undecidable manual P 213 9.4794 132 0.06 98
IV.TB03.DHZ.01 2021-01-16T13:50:13.35 0.1 undecidable manual P 229 6.8931 141 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.HNN. ML:2.1 0.0025850524999999997 0.2624 AML other m 2021-01-16T13:50:14.58
IV.ATPI.EHN. ML:2.2 0.002611855 0.2624 AML other m 2021-01-16T13:50:14.58
IV.ATPI.HNE. ML:2.1 0.0025912870000000003 0.2816 AML other m 2021-01-16T13:50:15.08
IV.ATPI.EHE. ML:2.1 0.0025315285000000005 0.2752 AML other m 2021-01-16T13:50:15.08
IV.ATFO.HHE. ML:1.6 0.0004554146 0.3584 AML other m 2021-01-16T13:50:16.78
IV.PIEI.HHN. ML:2.0 0.00132508465 0.1792 AML other m 2021-01-16T13:50:16.74
IV.PIEI.HHE. ML:2.0 0.0013450000000000003 0.16 AML other m 2021-01-16T13:50:16.76
IV.ATFO.HHN. ML:1.5 0.0004046312 0.1792 AML other m 2021-01-16T13:50:16.29
IV.APEC.HHE. ML:2.1 0.00135 0.14 AML other m 2021-01-16T13:50:17.15
IV.APEC.HHN. ML:2.0 0.00115 0.14 AML other m 2021-01-16T13:50:17.09
IV.NARO.HHE. ML:1.6 0.0003072067 0.064 AML other m 2021-01-16T13:50:19.36
IV.BADI.EHE. ML:2.1 0.0010335000000000001 0.22 AML other m 2021-01-16T13:50:19.10
IV.BADI.EHN. ML:2.1 0.0010515093499999999 0.2368 AML other m 2021-01-16T13:50:19.11
IV.FRON.EHE. ML:1.5 0.00019800000000000002 0.12 AML other m 2021-01-16T13:50:19.38
IV.FRON.EHN. ML:1.6 0.00027 0.14 AML other m 2021-01-16T13:50:19.46
IV.MURB.HNE. ML:2.1 0.00092207875 0.192 AML other m 2021-01-16T13:50:19.51
IV.MURB.HHE. ML:2.1 0.00098379195 0.16 AML other m 2021-01-16T13:50:19.51
IV.NARO.HHN. ML:1.6 0.0003055 0.06 AML other m 2021-01-16T13:50:19.75
IV.MURB.HNN. ML:2.0 0.00081652685 0.224 AML other m 2021-01-16T13:50:20.78
IV.MURB.HHN. ML:2.0 0.0007607579499999999 0.2048 AML other m 2021-01-16T13:50:19.99
IV.SSFR.HHN. ML:1.9 0.0005015000000000001 0.16 AML other m 2021-01-16T13:50:21.86
IV.SSFR.HHE. ML:1.8 0.00041770129999999997 0.1408 AML other m 2021-01-16T13:50:21.79
IV.PE3.EHN. ML:2.1 0.000603 0.34 AML other m 2021-01-16T13:50:22.27
IV.FOSV.EHE. ML:1.0 0.00005475228 0.2368 AML other m 2021-01-16T13:50:24.68
IV.PARC.HHE. ML:1.3 0.00010085 1.06 AML other m 2021-01-16T13:50:23.20
IV.PARC.HHN. ML:1.4 0.00012752835 0.1408 AML other m 2021-01-16T13:50:23.37
IV.ATCC.EHN. ML:1.9 0.000334 0.3 AML other m 2021-01-16T13:50:23.53
IV.ATCC.EHE. ML:1.8 0.0002941841 0.2752 AML other m 2021-01-16T13:50:23.01
IV.ARVD.HHN. ML:1.2 0.000062923115 0.2176 AML other m 2021-01-16T13:50:26.61
IV.PE3.EHE. ML:1.8 0.00032082515 0.2176 AML other m 2021-01-16T13:50:24.34
IV.CAFI.HHE. ML:1.2 0.00005325 0.12 AML other m 2021-01-16T13:50:25.92
IV.CAFI.HHN. ML:1.2 0.00005550961 0.1216 AML other m 2021-01-16T13:50:26.23
IV.ARVD.HHE. ML:1.2 0.00005458677 0.1792 AML other m 2021-01-16T13:50:24.84
IV.EL6.EHE. ML:1.7 0.00012604071 0.1792 AML other m 2021-01-16T13:50:29.19
IV.FOSV.EHN. ML:1.0 0.000049077870000000005 0.1152 AML other m 2021-01-16T13:50:23.03
IV.EL6.EHN. ML:1.4 0.00007148913500000001 0.2048 AML other m 2021-01-16T13:50:29.78
IV.APEC.HNN. ML:2.2 0.0016528429999999998 0.1472 AML other m 2021-01-16T13:50:17.08
IV.APEC.HNE. ML:1.9 0.00080502625 0.096 AML other m 2021-01-16T13:50:16.94
IV.SSFR.HNN. ML:1.9 0.00051705105 0.128 AML other m 2021-01-16T13:50:21.86
IV.SSFR.HNE. ML:1.9 0.00048360635 0.1536 AML other m 2021-01-16T13:50:21.80
IV.MPAG.EHE. ML:1.3 0.00009401803000000001 0.2368 AML other m 2021-01-16T13:50:23.31
IV.MPAG.EHN. ML:1.2 0.00007129440000000001 0.2432 AML other m 2021-01-16T13:50:25.45
IV.SSP9.EHE. ML:1.2 0.00007118576999999999 0.3392 AML other m 2021-01-16T13:50:23.81
IV.CRE.HHE. ML:1.3 0.00005946772 0.1792 AML other m 2021-01-16T13:50:27.57
IV.CRE.HHN. ML:1.4 0.000074961335 0.1792 AML other m 2021-01-16T13:50:27.65
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