Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 19-08-2020 and time 15:03:34 (UTC) in region 7 km N Sellano (PG)

A magnitude ML 1.4 earthquake occured in region: 7 km N Sellano (PG), on

  • 19-08-2020 15:03:34 (UTC)
  • 19-08-2020 17:03:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9530, 12.9080 at 10 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
Sellano PG 7 1079 1079
Monte Cavallo MC 9 145 1224
Preci PG 14 724 1948
Serravalle di Chienti MC 14 1070 3018
Cerreto di Spoleto PG 15 1075 4093
Visso MC 15 1107 5200
Trevi PG 15 8469 13669
Pieve Torina MC 16 1458 15127
Foligno PG 17 57155 72282
Valtopina PG 17 1398 73680
Fiordimonte MC 18 202 73882
Campello sul Clitunno PG 18 2442 76324
Muccia MC 18 915 77239
Pievebovigliana MC 19 866 78105
Ussita MC 19 444 78549
Spello PG 20 8645 87194
Nocera Umbra PG 20 5839 93033

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Foligno (57155 inhabitants)
46 Km E of Perugia (166134 inhabitants)
48 Km NE of Terni (111501 inhabitants)
73 Km W of Teramo (54892 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
100 Km S of Fano (60888 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 1.4 2020-08-19
15:03:34		 42.9532 12.908 10 2020-11-19
12:37:00		 Bollettino Sismico Italiano INGV 82786161
Reviewed
Rev100 		ML 1.4 2020-08-19
15:03:34		 42.951 12.9058 10 2020-08-19
15:10:08		 Sala Sismica INGV-Roma 82147861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-19 15:03:34 ± 0.03
Latitude 42.9532 ± 0.0018
Longitude 12.9080 ± 0.0025
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82786161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 230
Semi-minor axis of confidence ellipse (meter) 208
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 50
Circular confidence region, given by single value of horizontal uncertainty (meter) 230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.49732
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 82147861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-19 15:10:08

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 82786161
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-10 09:23:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MTRZ.HNZ. 2020-08-19T15:04:28.73 3.0 undecidable manual Sn 0.27 0
IV.PE3.EHZ. 2020-08-19T15:04:02.82 3.0 undecidable manual S -0.9 0
IV.VCEL.EHZ. 2020-08-19T15:03:53.38 3.0 negative manual P 0.8 0
IV.RM33.EHZ. 2020-08-19T15:03:52.35 0.3 undecidable manual S 153 55.2003 50 -0.01 71
IV.EL6.EHZ. 2020-08-19T15:03:49.68 0.6 undecidable manual S 21 44.622 50 0.16 46
IV.LNSS.HHZ. 2020-08-19T15:03:48.29 0.3 undecidable manual S 164 40.3263 50 -0.09 71
IV.MOMA.HNZ. 2020-08-19T15:03:46.32 0.6 undecidable manual S 239 32.0457 50 0.14 48
IV.ATCC.EHZ. 2020-08-19T15:03:46.79 0.3 undecidable manual S 320 33.6441 50 0.18 71
IT.GNU.HGE. 2020-08-19T15:03:46.48 0.3 undecidable manual S 239 32.0457 50 0.3 69
IV.GAVE.EHZ. 2020-08-19T15:03:45.39 0.3 undecidable manual S 182 28.9488 50 0.04 73
IV.CSP1.EHZ. 2020-08-19T15:03:45.14 0.3 undecidable manual S 57 28.5492 50 -0.1 73
IV.RM33.EHZ. 2020-08-19T15:03:44.79 0.3 undecidable manual P 153 55.2003 50 -0.2 68
IV.ASSB.HHZ. 2020-08-19T15:03:43.14 0.3 undecidable manual S 296 22.5552 114 -0.33 70
IV.CESX.HHZ. 2020-08-19T15:03:43.45 0.3 undecidable manual P 214 46.3203 50 -0.17 69
IV.SEF1.HNZ. 2020-08-19T15:03:43.50 0.3 undecidable manual S 8 21.7671 115 0.28 71
IV.MC2.EHZ. 2020-08-19T15:03:43.80 0.3 undecidable manual S 101 23.2545 113 0.09 73
IV.MURB.HHZ. 2020-08-19T15:03:43.55 0.3 undecidable manual P 318 46.3203 50 -0.07 71
IV.EL6.EHZ. 2020-08-19T15:03:43.34 0.3 undecidable manual P 21 44.622 50 -0.01 72
IV.LNSS.HHZ. 2020-08-19T15:03:42.62 0.1 undecidable manual P 164 40.3263 50 -0.07 95
IV.ARRO.EHZ. 2020-08-19T15:03:42.98 0.3 undecidable manual P 196 43.0236 50 -0.13 70
IV.MML1.HNE. 2020-08-19T15:03:42.15 0.3 undecidable manual S 16 18.5703 118 -0.07 74
IV.NRCA.HHZ. 2020-08-19T15:03:42.92 0.3 undecidable manual S 128 21.3675 115 -0.18 72
IT.GNU.HGE. 2020-08-19T15:03:41.79 0.3 undecidable manual P 239 32.0457 50 0.37 68
IV.FDMO.HHZ. 2020-08-19T15:03:41.54 0.3 undecidable manual S 57 17.2716 120 -0.29 71
IV.MOMA.HNZ. 2020-08-19T15:03:41.25 0.1 undecidable manual P 239 32.0457 50 -0.17 95
IV.ATCC.EHZ. 2020-08-19T15:03:41.66 0.3 undecidable manual P 320 33.6441 50 -0.01 73
IV.MC2.EHZ. 2020-08-19T15:03:40.32 0.3 undecidable manual P 101 23.2545 113 0.33 70
IV.FEMA.HNN. 2020-08-19T15:03:40.30 0.3 undecidable manual S 85 11.5773 131 0.09 75
IV.CSP1.EHZ. 2020-08-19T15:03:40.81 0.1 undecidable manual P 57 28.5492 50 -0.07 97
IV.GAVE.EHZ. 2020-08-19T15:03:40.97 0.1 undecidable manual P 182 28.9488 50 0.03 98
IV.FIU1.HNZ. 2020-08-19T15:03:40.26 0.1 undecidable manual P 4 26.1516 50 -0.25 94
IV.MML1.HNE. 2020-08-19T15:03:39.21 0.1 undecidable manual P 16 18.5703 118 0.08 99
IV.NRCA.HHZ. 2020-08-19T15:03:39.62 0.1 undecidable manual P 128 21.3675 115 -0.02 100
IV.ASSB.HHZ. 2020-08-19T15:03:39.76 0.1 undecidable manual P 296 22.5552 114 -0.09 98
IV.SEF1.HNZ. 2020-08-19T15:03:39.68 0.3 undecidable manual P 8 21.7671 115 -0.03 75
IT.MTCL.HGN. 2020-08-19T15:03:39.31 0.1 undecidable manual S 59 8.6802 139 -0.2 98
IV.FEMA.HNN. 2020-08-19T15:03:38.31 0.1 undecidable manual P 85 11.5773 131 0.33 95
IV.CESI.HHZ. 2020-08-19T15:03:38.76 0.3 undecidable manual S 357 5.7942 150 -0.15 75
IV.FDMO.HHZ. 2020-08-19T15:03:38.95 0.1 undecidable manual P 57 17.2716 120 0.04 100
IV.CESI.HHZ. 2020-08-19T15:03:37.42 0.1 undecidable manual P 357 5.7942 150 0.2 99
IT.MTCL.HGN. 2020-08-19T15:03:37.79 0.1 undecidable manual P 59 8.6802 139 0.22 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HNE. ML:1.7 0.000781 0.16 AML other m 2020-08-19T15:03:38.83
IV.CESI.HHE. ML:1.7 0.000865 0.16 AML other m 2020-08-19T15:03:38.91
IV.CESI.HHN. ML:1.9 0.0013450000000000003 1.68 AML other m 2020-08-19T15:03:39.00
IV.CESI.HNN. ML:1.9 0.001214 0.52 AML other m 2020-08-19T15:03:39.00
IV.FDMO.HHE. ML:1.3 0.0001865 0.3 AML other m 2020-08-19T15:03:41.89
IV.FDMO.HHN. ML:1.3 0.00016 0.3 AML other m 2020-08-19T15:03:41.89
IV.NRCA.HHN. ML:1.4 0.0001945 0.16 AML other m 2020-08-19T15:03:43.11
IV.ASSB.HHE. ML:1.2 0.0000979 0.32 AML other m 2020-08-19T15:03:43.54
IV.ASSB.HHN. ML:1.2 0.0001005 0.52 AML other m 2020-08-19T15:03:44.37
IV.NRCA.HHE. ML:1.5 0.00023199999999999997 1.58 AML other m 2020-08-19T15:03:44.17
IV.CSP1.EHN. ML:1.3 0.00010475000000000001 1.12 AML other m 2020-08-19T15:03:45.81
IV.GAVE.EHE. ML:1.4 0.00013949999999999998 1.18 AML other m 2020-08-19T15:03:46.67
IV.CSP1.EHE. ML:1.2 0.00007515 0.62 AML other m 2020-08-19T15:03:46.65
IV.GAVE.EHN. ML:1.3 0.00010889999999999999 0.14 AML other m 2020-08-19T15:03:47.79
IV.LNSS.HHN. ML:1.6 0.00011899999999999999 0.4 AML other m 2020-08-19T15:03:48.58
IV.LNSS.HHE. ML:1.7 0.00017099999999999998 0.12 AML other m 2020-08-19T15:03:48.57
IV.ARRO.EHN. ML:1.2 0.0000541 0.14 AML other m 2020-08-19T15:03:50.74
IV.ARRO.EHE. ML:1.2 0.00004380000000000001 0.72 AML other m 2020-08-19T15:03:51.38
IV.CESX.HHE. ML:1.2 0.00004455 0.38 AML other m 2020-08-19T15:03:51.53
IV.MURB.HHE. ML:1.5 0.00010005 0.2 AML other m 2020-08-19T15:03:51.60
IV.CESX.HHN. ML:1.3 0.00005425 0.32 AML other m 2020-08-19T15:03:51.97
IV.MURB.HHN. ML:1.6 0.00010865 1.84 AML other m 2020-08-19T15:03:52.98
IV.RM33.EHN. ML:1.0 0.00002715 0.5 AML other m 2020-08-19T15:03:54.40
IV.RM33.EHE. ML:1.0 0.0000241 1.18 AML other m 2020-08-19T15:03:56.37
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