Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 21-09-2019 and time 02:14:08 (Italy) in region 6 km NE Sellano (PG)

A magnitude ML 0.8 earthquake occured in region: 6 km NE Sellano (PG), on

  • 21-09-2019 00:14:08 (UTC)
  • 21-09-2019 02:14:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9370, 12.9690 at 12 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 6 1079 1079
Monte Cavallo MC 7 145 1224
Preci PG 9 724 1948
Visso MC 10 1107 3055
Cerreto di Spoleto PG 14 1075 4130
Pieve Torina MC 14 1458 5588
Ussita MC 14 444 6032
Fiordimonte MC 15 202 6234
Serravalle di Chienti MC 15 1070 7304
Castelsantangelo sul Nera MC 16 281 7585
Pievebovigliana MC 17 866 8451
Muccia MC 17 915 9366
Norcia PG 19 4957 14323
Fiastra MC 19 559 14882
Trevi PG 19 8469 23351
Acquacanina MC 20 121 23472

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Foligno (57155 inhabitants)
49 Km NE of Terni (111501 inhabitants)
51 Km E of Perugia (166134 inhabitants)
68 Km W of Teramo (54892 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
91 Km NE of Viterbo (67173 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 0.8 2019-09-21
00:14:08		 42.9372 12.9693 12 2019-09-21
00:27:02		 Sala Sismica INGV-Roma 72598991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-21 00:14:08 ± 0.07
Latitude 42.9372 ± 0.0027
Longitude 12.9693 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72598991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 309
Semi-minor axis of confidence ellipse (meter) 92
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 163
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
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 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34534
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 13
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 72598991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-21 00:27:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ZONE.HHZ. 2019-09-21T00:15:40.40 3.0 undecidable manual Sn -0.17 0
GU.TRAV.HHZ. 2019-09-21T00:15:19.96 3.0 undecidable manual Pn 9.65 0
IV.MIDA.HHZ. 2019-09-21T00:14:53.01 3.0 undecidable manual S 0.18 0
GU.GSCL.HHZ. 2019-09-21T00:14:45.52 3.0 negative manual Pn 6.52 0
IV.CSNT.HHZ. 2019-09-21T00:14:25.38 3.0 positive manual P -0.26 0
IV.ATCC.EHE. 2019-09-21T00:14:21.31 0.6 undecidable manual S 316 38.3283 93 0.49 43
IV.MOMA.HHE. 2019-09-21T00:14:20.38 0.1 undecidable manual S 246 35.6421 93 0.27 90
IV.SNTG.HHE. 2019-09-21T00:14:20.24 0.1 undecidable manual S 356 35.3424 93 0.22 91
IV.CERT.HHZ. 2019-09-21T00:14:18.08 3.0 undecidable manual P 0.06 0
IV.CSP1.EHZ. 2019-09-21T00:14:17.39 0.1 undecidable manual S 48 25.6521 95 -0.06 96
IV.ASSB.HHE. 2019-09-21T00:14:17.91 0.1 undecidable manual S 295 27.75 95 -0.1 94
IV.GAVE.EHE. 2019-09-21T00:14:17.96 0.1 undecidable manual S 193 27.8499 95 -0.07 95
IV.MML1.EHE. 2019-09-21T00:14:15.70 0.1 undecidable manual S 1 19.5693 100 -0.13 95
IV.MC2.EHE. 2019-09-21T00:14:15.63 0.1 undecidable manual S 99 18.0708 102 0.19 94
IV.ATCC.EHE. 2019-09-21T00:14:15.32 0.1 undecidable manual P 316 38.3283 93 -0.13 92
IV.SNTG.HHE. 2019-09-21T00:14:14.93 0.1 undecidable manual P 356 35.3424 93 -0.06 94
IV.FDMO.HHZ. 2019-09-21T00:14:14.31 0.1 undecidable manual S 41 14.5743 111 -0.24 94
IV.MOMA.HHE. 2019-09-21T00:14:14.96 0.3 undecidable manual P 246 35.6421 93 -0.08 70
IV.NRCA.HHE. 2019-09-21T00:14:14.76 0.1 undecidable manual S 134 16.4724 105 -0.26 94
IV.MC2.EHE. 2019-09-21T00:14:13.05 0.3 undecidable manual P 99 18.0708 102 0.7 61
IV.FEMA.HNE. 2019-09-21T00:14:13.15 0.1 undecidable manual S 67 7.0929 141 0.23 95
IV.CSP1.EHZ. 2019-09-21T00:14:13.40 0.6 negative manual P 48 25.6521 95 -0.11 47
IV.ASSB.HHE. 2019-09-21T00:14:13.69 0.1 undecidable manual P 295 27.75 95 -0.14 93
IV.GAVE.EHE. 2019-09-21T00:14:13.74 0.1 undecidable manual P 193 27.8499 95 -0.1 95
IV.CESI.HHZ. 2019-09-21T00:14:13.42 0.1 undecidable manual S 325 9.1797 131 0.11 97
IV.MML1.EHE. 2019-09-21T00:14:12.61 0.1 undecidable manual P 1 19.5693 100 0.04 97
IT.MTCL.HGE. 2019-09-21T00:14:12.66 0.1 undecidable manual S 21 6.7932 143 -0.2 96
IV.FDMO.HHZ. 2019-09-21T00:14:11.75 0.1 undecidable manual P 41 14.5743 111 -0.08 97
IV.CESI.HHZ. 2019-09-21T00:14:11.23 0.1 undecidable manual P 325 9.1797 131 0.12 97
IV.NRCA.HHE. 2019-09-21T00:14:11.87 0.1 undecidable manual P 134 16.4724 105 -0.23 94
IV.FEMA.HNE. 2019-09-21T00:14:11.02 0.1 undecidable manual P 67 7.0929 141 0.13 97
IT.MTCL.HGE. 2019-09-21T00:14:10.85 0.1 undecidable manual P 21 6.7932 143 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:0.7 0.00006130000000000001 0.28 AML other m 2019-09-21T00:14:13.44
IV.CESI.HHE. ML:0.8 0.00006675000000000001 0.2 AML other m 2019-09-21T00:14:13.60
IV.FDMO.HHE. ML:0.8 0.000059 0.26 AML other m 2019-09-21T00:14:14.50
IV.FDMO.HHN. ML:0.9 0.00007139999999999999 0.36 AML other m 2019-09-21T00:14:14.65
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