Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 23-10-2019 and time 00:07:59 (Italy) in region 3 km S Sellano (PG)

A magnitude ML 0.9 earthquake occured in region: 3 km S Sellano (PG), on

  • 22-10-2019 22:07:59 (UTC)
  • 23-10-2019 00:07:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8680, 12.9360 at 11 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 3 1079 1079
Cerreto di Spoleto PG 6 1075 2154
Preci PG 9 724 2878
Vallo di Nera PG 12 364 3242
Campello sul Clitunno PG 14 2442 5684
Visso MC 14 1107 6791
Monte Cavallo MC 15 145 6936
Norcia PG 15 4957 11893
Trevi PG 15 8469 20362
Sant'Anatolia di Narco PG 17 564 20926
Poggiodomo PG 17 117 21043
Cascia PG 18 3217 24260
Castelsantangelo sul Nera MC 18 281 24541
Ussita MC 19 444 24985
Scheggino PG 19 461 25446

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Foligno (57155 inhabitants)
41 Km NE of Terni (111501 inhabitants)
52 Km SE of Perugia (166134 inhabitants)
67 Km W of Teramo (54892 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
84 Km NE of Viterbo (67173 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
98 Km N of Guidonia Montecelio (88673 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
Reviewed
Rev100 		ML 0.9 2019-10-22
22:07:59		 42.8678 12.9363 11 2019-10-22
23:07:51		 Sala Sismica INGV-Roma 73399411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-22 22:07:59 ± 0.04
Latitude 42.8678 ± 0.0018
Longitude 12.9363 ± 0.0025
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73399411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 210
Semi-minor axis of confidence ellipse (meter) 199
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 329
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.12501
Epicentral distance of station farthest from the epicenter (degree) 0.38671
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 73399411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-22 23:07:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2019-10-22T22:08:13.31 0.3 undecidable manual S 326 42.624 50 0.3 70
IV.SNTG.HHZ. 2019-10-22T22:08:13.40 0.3 undecidable manual S 0 42.9237 50 0.3 69
IV.CESX.HHZ. 2019-10-22T22:08:12.31 0.3 undecidable manual S 225 40.5261 50 -0.13 73
IV.ARRO.EHZ. 2019-10-22T22:08:11.34 0.6 undecidable manual S 204 34.9428 50 0.39 46
IV.MMO1.EHZ. 2019-10-22T22:08:10.15 0.3 undecidable manual S 84 31.9458 50 -0.01 75
IV.MOMA.HHE. 2019-10-22T22:08:10.09 0.3 undecidable manual S 257 30.6471 50 0.28 71
IV.CSP1.EHZ. 2019-10-22T22:08:10.49 0.3 undecidable manual S 41 33.0447 50 0.04 75
IV.ASSB.HHZ. 2019-10-22T22:08:09.27 0.3 undecidable manual S 311 29.748 50 -0.29 72
IV.LNSS.HHZ. 2019-10-22T22:08:09.68 0.3 undecidable manual S 164 30.6471 50 -0.12 74
IV.MML1.HNZ. 2019-10-22T22:08:08.96 0.3 undecidable manual S 6 27.3504 50 0.02 76
IV.MC2.EHZ. 2019-10-22T22:08:07.39 0.3 undecidable manual S 77 21.0678 117 0.13 75
IV.ATCC.EHZ. 2019-10-22T22:08:07.09 0.3 undecidable manual P 326 42.624 50 -0.02 74
IV.FDMO.HHZ. 2019-10-22T22:08:07.33 0.3 undecidable manual S 33 22.3554 50 -0.27 73
IV.SNTG.HHZ. 2019-10-22T22:08:07.02 0.6 undecidable manual P 0 42.9237 50 -0.14 48
IV.CESX.HHZ. 2019-10-22T22:08:06.49 0.6 undecidable manual P 225 40.5261 50 -0.3 47
IV.NRCA.HHZ. 2019-10-22T22:08:05.40 0.3 undecidable manual S 105 14.9739 125 -0.03 77
IV.FEMA.HNZ. 2019-10-22T22:08:05.26 0.3 undecidable manual S 41 13.875 127 0.12 77
IV.CSP1.EHZ. 2019-10-22T22:08:05.61 0.3 undecidable manual P 41 33.0447 50 -0.03 75
IV.CESI.HHZ. 2019-10-22T22:08:05.44 0.3 undecidable manual S 350 15.3735 125 -0.12 76
IT.MTCL.HGZ. 2019-10-22T22:08:05.25 0.3 undecidable manual S 20 14.874 125 -0.16 75
IV.ARRO.EHZ. 2019-10-22T22:08:05.88 0.3 undecidable manual P 204 34.9428 50 -0.05 75
IV.LNSS.HHZ. 2019-10-22T22:08:05.17 0.1 undecidable manual P 164 30.6471 50 -0.09 99
IV.MMO1.EHZ. 2019-10-22T22:08:05.42 0.3 undecidable manual P 84 31.9458 50 -0.05 75
IV.MOMA.HHE. 2019-10-22T22:08:05.42 0.3 undecidable manual P 257 30.6471 50 0.15 74
IV.MML1.HNZ. 2019-10-22T22:08:04.67 0.3 undecidable manual P 6 27.3504 50 -0.1 75
IV.ASSB.HHZ. 2019-10-22T22:08:04.92 0.1 undecidable manual P 311 29.748 50 -0.21 97
IV.FDMO.HHZ. 2019-10-22T22:08:03.91 0.3 undecidable manual P 33 22.3554 50 -0.09 76
IV.MC2.EHZ. 2019-10-22T22:08:03.89 0.3 undecidable manual P 77 21.0678 117 0.09 76
IV.NRCA.HHZ. 2019-10-22T22:08:02.79 0.3 undecidable manual P 105 14.9739 125 0.05 77
IV.FEMA.HNZ. 2019-10-22T22:08:02.79 0.1 undecidable manual P 41 13.875 127 0.21 100
IV.CESI.HHZ. 2019-10-22T22:08:02.89 0.3 undecidable manual P 350 15.3735 125 0.07 77
IT.MTCL.HGZ. 2019-10-22T22:08:02.74 0.3 undecidable manual P 20 14.874 125 0.01 78
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.1 0.00012674289999999998 0.1024 AML other m 2019-10-22T22:08:06.58
IV.NRCA.HHN. ML:1.1 0.00011628924 0.1152 AML other m 2019-10-22T22:08:06.24
IV.NRCA.HNE. ML:1.1 0.00012490518 0.0896 AML other m 2019-10-22T22:08:06.34
IV.NRCA.HNN. ML:1.1 0.00011220671845 0.128 AML other m 2019-10-22T22:08:06.18
IV.CESI.HHE. ML:1.0 0.00008362801000000001 0.1664 AML other m 2019-10-22T22:08:06.18
IV.CESI.HHN. ML:1.2 0.00015367392000000001 0.2176 AML other m 2019-10-22T22:08:05.71
IV.CESI.HNE. ML:0.8 0.00006498657500000001 0.128 AML other m 2019-10-22T22:08:06.18
IV.CESI.HNN. ML:1.2 0.00013460677999999998 0.1664 AML other m 2019-10-22T22:08:05.70
IV.FDMO.HHE. ML:0.9 0.000056633485 0.2176 AML other m 2019-10-22T22:08:08.24
IV.FDMO.HHN. ML:0.7 0.000031087790000000003 0.1664 AML other m 2019-10-22T22:08:09.72
IV.ASSB.HHE. ML:0.7 0.00002624652 0.0768 AML other m 2019-10-22T22:08:10.25
IV.ASSB.HHN. ML:0.6 0.00002209877 0.0768 AML other m 2019-10-22T22:08:10.28
IV.LNSS.HHE. ML:1.1 0.00005529097 0.1024 AML other m 2019-10-22T22:08:10.22
IV.LNSS.HHN. ML:1.0 0.000047763025 0.2176 AML other m 2019-10-22T22:08:10.30
IV.CSP1.EHE. ML:0.9 0.0000330373815 0.256 AML other m 2019-10-22T22:08:11.23
IV.CSP1.EHN. ML:0.8 0.00002898933 0.2432 AML other m 2019-10-22T22:08:11.24
IV.ARRO.EHE. ML:0.6 0.000016345195 0.1536 AML other m 2019-10-22T22:08:12.11
IV.ARRO.EHN. ML:0.6 0.00001536723 0.1792 AML other m 2019-10-22T22:08:12.59
IV.SNTG.HHE. ML:0.5 0.000009997443 0.0768 AML other m 2019-10-22T22:08:14.13
IV.SNTG.HHN. ML:0.5 0.000008369155 0.1024 AML other m 2019-10-22T22:08:14.83
IV.ATCC.EHE. ML:0.9 0.000023441174999999997 0.2432 AML other m 2019-10-22T22:08:13.63
IV.ATCC.EHN. ML:0.8 0.000017744509999999997 0.1536 AML other m 2019-10-22T22:08:14.30
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