Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 16-09-2020 and time 10:04:21 (Italy) in region 2 km E Campello sul Clitunno (PG)

A magnitude ML 0.8 earthquake occured in region: 2 km E Campello sul Clitunno (PG), on

  • 16-09-2020 08:04:21 (UTC)
  • 16-09-2020 10:04:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8160, 12.8000 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
Campello sul Clitunno PG 2 2442 2442
Vallo di Nera PG 7 364 2806
Trevi PG 8 8469 11275
Sant'Anatolia di Narco PG 10 564 11839
Cerreto di Spoleto PG 10 1075 12914
Spoleto PG 10 38218 51132
Castel Ritaldi PG 10 3278 54410
Scheggino PG 12 461 54871
Sellano PG 13 1079 55950
Montefalco PG 15 5679 61629
Poggiodomo PG 16 117 61746
Foligno PG 17 57155 118901
Giano dell'Umbria PG 18 3846 122747

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km SE of Foligno (57155 inhabitants)
31 Km NE of Terni (111501 inhabitants)
47 Km SE of Perugia (166134 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
72 Km NE of Viterbo (67173 inhabitants)
76 Km W of Teramo (54892 inhabitants)
91 Km N of Guidonia Montecelio (88673 inhabitants)
95 Km N of Tivoli (56533 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 2020-09-16
08:04:21		 42.8165 12.8002 11 2020-09-16
08:11:56		 Sala Sismica INGV-Roma 82948041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-16 08:04:21 ± 0.08
Latitude 42.8165 ± 0.0036
Longitude 12.8002 ± 0.0074
Depth (km) 11 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82948041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 528
Semi-minor axis of confidence ellipse (meter) 215
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 279
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.14209
Epicentral distance of station farthest from the epicenter (degree) 0.25990
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 82948041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-16 08:11:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2020-09-16T08:04:31.50 0.3 undecidable manual S 335 27.5502 50 -0.05 74
IV.CESX.HHE. 2020-09-16T08:04:31.56 0.3 undecidable manual S 217 28.8489 50 -0.34 71
IV.CESI.HHZ. 2020-09-16T08:04:30.18 0.6 undecidable manual S 22 22.5552 50 -0.03 50
IV.NRCA.HHZ. 2020-09-16T08:04:30.97 0.3 undecidable manual S 86 25.6521 50 -0.06 76
IV.MOMA.HHZ. 2020-09-16T08:04:29.19 0.3 undecidable manual S 266 18.7701 50 -0.01 76
IV.GAVE.EHZ. 2020-09-16T08:04:28.32 0.3 undecidable manual S 151 15.7731 125 -0.08 77
IV.NRCA.HHZ. 2020-09-16T08:04:27.00 0.1 undecidable manual P 86 25.6521 50 -0.1 100
IV.ASSB.HHZ. 2020-09-16T08:04:27.38 0.6 undecidable manual P 335 27.5502 50 -0.02 50
IV.CESX.HHE. 2020-09-16T08:04:27.99 0.1 undecidable manual P 217 28.8489 50 0.39 93
IV.CESI.HHZ. 2020-09-16T08:04:26.63 0.3 negative manual P 22 22.5552 50 0.01 76
IV.GAVE.EHZ. 2020-09-16T08:04:25.60 0.3 positive manual P 151 15.7731 125 0.02 77
IV.MOMA.HHZ. 2020-09-16T08:04:25.91 0.6 negative manual P 266 18.7701 50 -0.13 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHE. ML:1.3 0.0001783704 0.1792 AML other m 2020-09-16T08:04:28.70
IV.GAVE.EHN. ML:1.3 0.00018664925 0.2176 AML other m 2020-09-16T08:04:28.76
IV.GAVE.HNE. ML:1.4 0.0002132592 0.2496 AML other m 2020-09-16T08:04:28.70
IV.MOMA.HHE. ML:0.6 0.000029811375000000002 0.1216 AML other m 2020-09-16T08:04:29.87
IV.MOMA.HHN. ML:0.5 0.000026774205000000002 0.1792 AML other m 2020-09-16T08:04:29.83
IV.CESI.HHE. ML:0.7 0.00003196186 0.0576 AML other m 2020-09-16T08:04:30.79
IV.CESI.HHN. ML:1.0 0.000058022075 0.16 AML other m 2020-09-16T08:04:30.27
IV.NRCA.HHE. ML:0.6 0.000020246619999999998 0.16 AML other m 2020-09-16T08:04:33.42
IV.NRCA.HHN. ML:0.8 0.000035118175000000004 0.1024 AML other m 2020-09-16T08:04:31.46
IV.ASSB.HHE. ML:0.8 0.00002937844 0.256 AML other m 2020-09-16T08:04:31.65
IV.ASSB.HHN. ML:0.7 0.000023156275 0.1792 AML other m 2020-09-16T08:04:31.90
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