Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 04-07-2020 and time 04:47:05 (Italy) in region 7 km NW Sellano (PG)

A magnitude ML 0.9 earthquake occured in region: 7 km NW Sellano (PG), on

  • 04-07-2020 02:47:05 (UTC)
  • 04-07-2020 04:47:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9490, 12.8840 at 10 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 8 1079 1079
Monte Cavallo MC 11 145 1224
Trevi PG 14 8469 9693
Cerreto di Spoleto PG 15 1075 10768
Foligno PG 15 57155 67923
Preci PG 15 724 68647
Serravalle di Chienti MC 15 1070 69717
Valtopina PG 16 1398 71115
Campello sul Clitunno PG 17 2442 73557
Visso MC 17 1107 74664
Pieve Torina MC 17 1458 76122
Spello PG 18 8645 84767
Fiordimonte MC 20 202 84969
Nocera Umbra PG 20 5839 90808
Montefalco PG 20 5679 96487
Vallo di Nera PG 20 364 96851
Muccia MC 20 915 97766

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km E of Foligno (57155 inhabitants)
44 Km E of Perugia (166134 inhabitants)
47 Km NE of Terni (111501 inhabitants)
74 Km W of Teramo (54892 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
87 Km NE of Viterbo (67173 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
100 Km SE of Arezzo (99543 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
Reviewed
Rev100 		ML 0.9 2020-07-04
02:47:05		 42.9488 12.884 10 2020-07-04
02:51:08		 Sala Sismica INGV-Roma 80754751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-04 02:47:05 ± 0.07
Latitude 42.9488 ± 0.0027
Longitude 12.8840 ± 0.0061
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80754751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 471
Semi-minor axis of confidence ellipse (meter) 258
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 88
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 190
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) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.05756
Epicentral distance of station farthest from the epicenter (degree) 0.30847
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:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 80754751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-04 02:51:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2020-07-04T02:47:16.93 0.6 undecidable manual S 8 34.2435 50 -0.21 63
IV.CSP1.EHZ. 2020-07-04T02:47:16.40 0.6 undecidable manual S 59 30.4473 50 0.27 63
IV.GAVE.EHZ. 2020-07-04T02:47:15.62 0.6 undecidable manual S 178 28.4493 50 0.02 66
IV.NRCA.HHZ. 2020-07-04T02:47:13.94 0.6 undecidable manual S 124 22.6551 114 -0.07 66
IV.FDMO.HHZ. 2020-07-04T02:47:12.78 0.6 undecidable manual S 59 19.1697 118 -0.13 66
IV.SNTG.HHZ. 2020-07-04T02:47:12.11 0.6 undecidable manual P 8 34.2435 50 -0.05 65
IV.CSP1.EHZ. 2020-07-04T02:47:11.60 1.0 negative manual P 59 30.4473 50 0.02 33
IV.GAVE.EHZ. 2020-07-04T02:47:11.23 0.6 positive manual P 178 28.4493 50 -0.05 66
IV.NRCA.HHZ. 2020-07-04T02:47:10.32 0.3 undecidable manual P 124 22.6551 114 -0.04 100
IV.FDMO.HHZ. 2020-07-04T02:47:09.74 0.6 undecidable manual P 59 19.1697 118 0.02 67
IV.CESI.HHZ. 2020-07-04T02:47:09.56 0.6 undecidable manual S 15 6.3936 148 -0.02 69
IV.CESI.HHZ. 2020-07-04T02:47:07.98 0.3 undecidable manual P 15 6.3936 148 0.18 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.2 0.00022499999999999997 0.08 AML other m 2020-07-04T02:47:09.68
IV.CESI.HHN. ML:1.1 0.000177 0.12 AML other m 2020-07-04T02:47:09.75
IV.NRCA.HHN. ML:0.7 0.000036099999999999997 0.08 AML other m 2020-07-04T02:47:14.05
IV.NRCA.HHE. ML:0.7 0.000033799999999999995 0.72 AML other m 2020-07-04T02:47:14.41
IV.GAVE.EHE. ML:1.0 0.00004515 0.62 AML other m 2020-07-04T02:47:15.35
IV.GAVE.EHN. ML:0.8 0.0000306 0.24 AML other m 2020-07-04T02:47:16.33
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