Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 16-09-2020 and time 16:16:44 (UTC) in region 4 km SE Pietralunga (PG)

A magnitude ML 1.6 earthquake occured in region: 4 km SE Pietralunga (PG), on

  • 16-09-2020 16:16:44 (UTC)
  • 16-09-2020 18:16:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4180, 12.4720 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 11 32216 34327
Montone PG 13 1680 36007
Cantiano PU 14 2245 38252
Scheggia e Pascelupo PG 16 1393 39645
Apecchio PU 16 1882 41527
Umbertide PG 17 16681 58208
Città di Castello PG 19 39913 98121
Piobbico PU 19 2029 100150

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km N of Perugia (166134 inhabitants)
48 Km E of Arezzo (99543 inhabitants)
55 Km NW of Foligno (57155 inhabitants)
65 Km SW of Fano (60888 inhabitants)
65 Km SW of Pesaro (94582 inhabitants)
72 Km S of Rimini (147750 inhabitants)
82 Km S of Cesena (96758 inhabitants)
87 Km W of Ancona (100861 inhabitants)
93 Km E of Siena (53903 inhabitants)
96 Km SE of Forlì (117913 inhabitants)
96 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 1.6 2020-09-16
16:16:44		 43.4182 12.472 8 2021-02-26
14:55:57		 Bollettino Sismico Italiano INGV 83408971
Reviewed
Rev100 		ML 1.6 2020-09-16
16:16:44		 43.4227 12.4758 9 2020-09-16
16:23:57		 Sala Sismica INGV-Roma 82958521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-16 16:16:44 ± 0.03
Latitude 43.4182 ± 0.0018
Longitude 12.4720 ± 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 83408971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 179
Semi-minor axis of confidence ellipse (meter) 125
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 175
Circular confidence region, given by single value of horizontal uncertainty (meter) 180.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 39
Number of associated phases, regardless of their use for origin computation 69
Number of defining phases 65
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.58816
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 83408971
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-01 08:15:27

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 48
Type of magnitude ML
Reference to an origin 82958521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-16 16:23:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RMP.HHZ. 2020-09-16T16:17:15.56 3.0 negative manual P 2.54 0
TV.SF01.EHZ. 2020-09-16T16:17:12.55 3.0 undecidable manual S -4.05 0
IV.CSP1.EHZ. 2020-09-16T16:17:07.52 3.0 undecidable manual S 0.15 0
IV.FDMO.HHZ. 2020-09-16T16:17:05.76 0.6 undecidable manual S 130 65.2902 50 0.52 41
IV.MGAB.HHZ. 2020-09-16T16:17:04.69 1.0 undecidable manual S 208 63.1923 50 0.02 23
IV.EL6.EHZ. 2020-09-16T16:17:01.92 0.3 undecidable manual S 101 51.7038 50 0.31 66
IV.ASSB.HHZ. 2020-09-16T16:16:59.53 0.3 undecidable manual S 160 44.3223 50 -0.1 70
IV.SNTG.HHZ. 2020-09-16T16:16:59.11 0.6 undecidable manual S 115 41.9247 50 0.12 46
IV.CAFI.HHZ. 2020-09-16T16:16:58.86 0.3 undecidable manual S 257 41.9247 50 -0.14 69
IV.ARVD.HHZ. 2020-09-16T16:16:58.05 0.3 undecidable manual S 77 38.8278 50 -0.12 70
IV.CSP1.EHZ. 2020-09-16T16:16:57.50 3.0 undecidable manual P 0.08 0
IV.MPAG.EHZ. 2020-09-16T16:16:56.35 0.3 undecidable manual S 45 32.9448 104 -0.18 70
IV.FDMO.HHZ. 2020-09-16T16:16:56.55 0.6 undecidable manual P 130 65.2902 50 -0.03 45
IV.PE3.EHZ. 2020-09-16T16:16:56.31 0.3 undecidable manual S 4 30.8469 105 0.46 66
IV.MGAB.HHZ. 2020-09-16T16:16:56.21 0.3 undecidable manual P 208 63.1923 50 -0.04 68
IV.PARC.HHZ. 2020-09-16T16:16:56.24 0.6 undecidable manual S 324 31.746 105 0.11 47
IV.ATCC.EHZ. 2020-09-16T16:16:55.77 0.6 undecidable manual S 152 29.1486 106 0.49 44
IV.EL6.EHZ. 2020-09-16T16:16:54.32 0.3 undecidable manual P 101 51.7038 50 -0.16 68
IV.FOSV.EHZ. 2020-09-16T16:16:54.81 0.3 undecidable manual S 120 27.0507 107 0.24 70
IV.CPGN.EHZ. 2020-09-16T16:16:53.77 0.6 undecidable manual P 344 44.2224 50 0.45 43
IV.SSFR.HHZ. 2020-09-16T16:16:53.97 0.3 undecidable manual S 85 25.0527 108 0.05 73
IV.NARO.HHZ. 2020-09-16T16:16:53.05 0.3 undecidable manual S 22 23.0547 110 -0.22 70
IV.ATMC.EHZ. 2020-09-16T16:16:53.10 0.3 undecidable manual S 278 22.755 110 -0.05 73
IV.FRON.EHZ. 2020-09-16T16:16:53.26 0.3 undecidable manual S 61 23.2545 110 -0.05 73
IV.SNTG.HHZ. 2020-09-16T16:16:52.54 0.3 undecidable manual P 115 41.9247 50 -0.43 65
IV.ATMI.HHZ. 2020-09-16T16:16:52.06 0.3 undecidable manual S 241 18.87 114 0.14 72
IV.ARVD.HHZ. 2020-09-16T16:16:52.21 0.6 undecidable manual P 77 38.8278 50 -0.29 45
IV.BADI.EHZ. 2020-09-16T16:16:52.83 0.3 undecidable manual S 299 20.9679 112 0.25 70
IV.ATVA.EHZ. 2020-09-16T16:16:52.92 0.3 undecidable manual S 224 21.5673 111 0.14 72
IV.CAFI.HHZ. 2020-09-16T16:16:52.98 0.6 undecidable manual P 257 41.9247 50 0 47
IV.ASSB.HHZ. 2020-09-16T16:16:52.94 0.3 undecidable manual P 160 44.3223 50 -0.4 65
IV.MURB.HHZ. 2020-09-16T16:16:52.00 0.3 undecidable manual S 166 17.7711 115 0.45 68
IV.PARC.HHZ. 2020-09-16T16:16:51.20 0.3 undecidable manual P 324 31.746 105 -0.12 71
IT.UMBT.HGZ. 2020-09-16T16:16:51.73 0.3 undecidable manual S 219 16.3725 117 0.61 64
IV.MPAG.EHZ. 2020-09-16T16:16:51.20 0.3 undecidable manual P 45 32.9448 104 -0.35 67
IV.ATSC.EHZ. 2020-09-16T16:16:51.60 0.3 undecidable manual S 88 17.2716 116 0.19 72
IV.APEC.HHZ. 2020-09-16T16:16:51.37 0.3 undecidable manual S 345 16.1727 117 0.32 70
IV.PE3.EHZ. 2020-09-16T16:16:51.27 0.3 undecidable manual P 4 30.8469 105 0.11 71
IV.ATCC.EHZ. 2020-09-16T16:16:50.73 0.3 undecidable manual P 152 29.1486 106 -0.1 71
IV.FOSV.EHZ. 2020-09-16T16:16:50.11 0.3 undecidable manual P 120 27.0507 107 -0.31 69
IV.NARO.HHZ. 2020-09-16T16:16:49.46 0.1 undecidable manual P 22 23.0547 110 -0.21 94
IV.ATMC.EHZ. 2020-09-16T16:16:49.60 0.3 undecidable manual P 278 22.755 110 0 74
IV.FRON.EHZ. 2020-09-16T16:16:49.52 0.1 undecidable manual P 61 23.2545 110 -0.17 95
IV.ATBU.HNZ. 2020-09-16T16:16:49.36 0.3 undecidable manual S 44 8.88 133 0.38 70
IV.ATFO.HHZ. 2020-09-16T16:16:49.20 0.3 undecidable manual S 125 9.879 130 -0.03 75
IV.SSFR.HHZ. 2020-09-16T16:16:49.83 0.1 undecidable manual P 85 25.0527 108 -0.21 94
IV.ATVA.EHZ. 2020-09-16T16:16:49.47 0.1 undecidable manual P 224 21.5673 111 0.08 97
IV.BADI.EHZ. 2020-09-16T16:16:49.34 0.1 undecidable manual P 299 20.9679 112 0.07 97
IV.ATLO.EHZ. 2020-09-16T16:16:49.91 0.3 undecidable manual S 205 12.5763 124 -0.07 74
IV.ATSC.EHZ. 2020-09-16T16:16:48.65 0.1 undecidable manual P 88 17.2716 116 0.05 98
IV.APEC.HHZ. 2020-09-16T16:16:48.46 0.1 undecidable manual P 345 16.1727 117 0.08 98
IV.ATPC.HHZ. 2020-09-16T16:16:48.62 0.3 undecidable manual S 350 7.0929 140 0.08 75
IV.TB02.DHZ.01 2020-09-16T16:16:48.40 0.3 undecidable manual S 224 7.2927 139 -0.2 73
IV.ATPI.EHZ. 2020-09-16T16:16:48.23 0.3 undecidable manual S 303 6.6933 141 -0.23 72
IV.MURB.HHZ. 2020-09-16T16:16:48.76 0.1 positive manual P 166 17.7711 115 0.09 97
IV.ATMI.HHZ. 2020-09-16T16:16:48.88 0.3 undecidable manual P 241 18.87 114 -0.01 74
IT.UMBT.HGZ. 2020-09-16T16:16:48.80 0.3 undecidable manual P 219 16.3725 117 0.38 69
IV.ATVO.HNZ. 2020-09-16T16:16:48.14 0.3 undecidable manual S 233 6.5934 142 -0.31 71
IV.TB03.DHZ.01 2020-09-16T16:16:47.83 0.3 undecidable manual S 250 5.2947 148 -0.35 71
IV.ATLO.EHZ. 2020-09-16T16:16:47.81 0.1 undecidable manual P 205 12.5763 124 0.04 99
IV.ATPC.HHZ. 2020-09-16T16:16:47.03 0.1 undecidable manual P 350 7.0929 140 0.09 99
IV.ATBU.HNZ. 2020-09-16T16:16:47.43 0.1 undecidable manual P 44 8.88 133 0.24 96
IV.ATFO.HHZ. 2020-09-16T16:16:47.25 0.1 positive manual P 125 9.879 130 -0.08 99
IV.TB01.DHZ.01 2020-09-16T16:16:47.78 0.3 undecidable manual S 216 4.995 149 -0.35 71
IV.TB01.DHZ.01 2020-09-16T16:16:46.54 0.1 undecidable manual P 216 4.995 149 -0.16 98
IV.ATVO.HNZ. 2020-09-16T16:16:46.78 0.1 undecidable manual P 233 6.5934 142 -0.1 99
IV.TB03.DHZ.01 2020-09-16T16:16:46.58 0.1 undecidable manual P 250 5.2947 148 -0.15 98
IV.TB02.DHZ.01 2020-09-16T16:16:46.92 0.1 undecidable manual P 224 7.2927 139 -0.05 100
IV.ATPI.EHZ. 2020-09-16T16:16:46.84 0.1 undecidable manual P 303 6.6933 141 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.EHN. ML:1.7 0.0008265 1.32 AML other m 2020-09-16T16:16:48.92
IV.ATPI.HNN. ML:1.7 0.0008165 1.32 AML other m 2020-09-16T16:16:48.92
IV.ATPI.HNE. ML:1.7 0.000996 0.64 AML other m 2020-09-16T16:16:48.28
IV.ATPI.EHE. ML:1.8 0.0010500000000000002 0.64 AML other m 2020-09-16T16:16:48.28
IV.APEC.HHE. ML:1.7 0.0005225 0.14 AML other m 2020-09-16T16:16:51.70
IV.APEC.HHN. ML:1.9 0.0008045 0.14 AML other m 2020-09-16T16:16:51.64
IV.BADI.EHN. ML:1.8 0.000491 0.5 AML other m 2020-09-16T16:16:53.41
IV.BADI.EHE. ML:1.6 0.000314 0.58 AML other m 2020-09-16T16:16:53.12
IV.ATMI.HHE. ML:1.5 0.0002565 0.72 AML other m 2020-09-16T16:16:54.66
IV.ATMI.HHN. ML:1.6 0.00028531035 0.4224 AML other m 2020-09-16T16:16:56.90
IV.PARC.HHE. ML:1.4 0.00011155000000000001 0.12 AML other m 2020-09-16T16:16:57.43
IV.PARC.HHN. ML:1.4 0.0001275 0.54 AML other m 2020-09-16T16:16:57.60
IV.SNTG.HHE. ML:1.5 0.0001001 0.14 AML other m 2020-09-16T16:16:59.41
IV.SNTG.HHN. ML:1.5 0.00009620000000000001 0.46 AML other m 2020-09-16T16:16:59.62
IV.ASSB.HHE. ML:1.5 0.00010208039499999999 0.1152 AML other m 2020-09-16T16:17:01.25
IV.ASSB.HHN. ML:1.4 0.000087115995 0.1152 AML other m 2020-09-16T16:17:01.57
IV.EL6.EHN. ML:1.5 0.0000838911 0.1408 AML other m 2020-09-16T16:17:02.59
IV.EL6.EHE. ML:1.6 0.00009402611600000001 0.1792 AML other m 2020-09-16T16:17:03.31
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