Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 09-07-2020 and time 21:55:17 (Italy) in region 2 km S Nocera Umbra (PG)

A magnitude ML 1.0 earthquake occured in region: 2 km S Nocera Umbra (PG), on

  • 09-07-2020 19:55:17 (UTC)
  • 09-07-2020 21:55:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0980, 12.7860 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
Nocera Umbra PG 2 5839 5839
Valtopina PG 5 1398 7237
Serravalle di Chienti MC 14 1070 8307
Assisi PG 14 28299 36606
Sefro MC 14 422 37028
Spello PG 15 8645 45673
Gualdo Tadino PG 15 15208 60881
Fiuminata MC 16 1402 62283
Valfabbrica PG 17 3389 65672
Foligno PG 17 57155 122827
Pioraco MC 19 1134 123961
Bastia Umbra PG 20 21874 145835
Cannara PG 20 4305 150140

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NE of Foligno (57155 inhabitants)
32 Km E of Perugia (166134 inhabitants)
61 Km N of Terni (111501 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
84 Km E of Arezzo (99543 inhabitants)
85 Km S of Fano (60888 inhabitants)
89 Km NW of Teramo (54892 inhabitants)
91 Km S of Pesaro (94582 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
97 Km NW of L'Aquila (69753 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 1.0 2020-07-09
19:55:17		 43.0978 12.7862 10 2020-07-09
20:02:31		 Sala Sismica INGV-Roma 80913121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-09 19:55:17 ± 0.05
Latitude 43.0978 ± 0.0036
Longitude 12.7862 ± 0.0037
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 80913121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 447
Semi-minor axis of confidence ellipse (meter) 136
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 40
Circular confidence region, given by single value of horizontal uncertainty (meter) 450.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 171
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 24
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.53420
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 80913121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-09 20:02:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ROSPO.HHZ. 2020-07-09T19:56:11.19 3.0 undecidable manual Sn 0.01 0
IV.LMD.HHZ. 2020-07-09T19:55:42.96 3.0 positive manual P 3.09 0
IV.PIEI.HHZ. 2020-07-09T19:55:34.18 0.6 undecidable manual S 337 52.6029 50 0.37 44
IV.ATVO.HHZ. 2020-07-09T19:55:31.49 0.6 undecidable manual S 316 44.0226 50 -0.01 48
IV.NRCA.HHZ. 2020-07-09T19:55:30.24 0.6 undecidable manual S 138 39.627 50 -0.09 48
IV.ATFO.HHZ. 2020-07-09T19:55:29.27 0.6 undecidable manual S 330 34.4433 50 0.31 46
IV.CSP1.EHZ. 2020-07-09T19:55:29.12 0.3 undecidable manual S 91 33.9438 50 0.3 69
IV.NARO.HHZ. 2020-07-09T19:55:27.59 0.1 undecidable manual P 344 59.2962 50 -0.16 91
IV.MURB.HHZ. 2020-07-09T19:55:27.26 0.6 undecidable manual S 311 27.9498 50 0.03 49
IV.PIEI.HHZ. 2020-07-09T19:55:26.50 0.1 undecidable manual P 337 52.6029 50 -0.23 91
IV.FDMO.HHZ. 2020-07-09T19:55:26.31 0.3 undecidable manual S 105 25.3524 111 -0.19 72
IV.ATVO.HHZ. 2020-07-09T19:55:25.57 0.1 undecidable manual P 316 44.0226 50 0.17 93
IV.SNTG.HHZ. 2020-07-09T19:55:25.23 0.3 undecidable manual S 36 21.4674 115 -0.03 75
IV.ATSC.EHN. 2020-07-09T19:55:24.09 0.1 undecidable manual P 347 37.0296 50 -0.24 93
IV.NRCA.HHZ. 2020-07-09T19:55:24.72 0.1 undecidable manual P 138 39.627 50 0 97
IV.SSFR.HHN. 2020-07-09T19:55:24.38 0.1 undecidable manual P 360 37.5291 50 -0.02 97
IV.ATFO.HHZ. 2020-07-09T19:55:23.83 0.1 undecidable manual P 330 34.4433 50 -0.1 96
IV.CSP1.EHZ. 2020-07-09T19:55:23.84 0.1 undecidable manual P 91 33.9438 50 0 98
IV.CESI.HHZ. 2020-07-09T19:55:23.06 0.6 undecidable manual S 137 14.0748 125 0.02 51
IV.ATCC.EHZ. 2020-07-09T19:55:23.43 0.6 undecidable manual S 309 15.2736 123 0.05 50
IV.FDMO.HHZ. 2020-07-09T19:55:22.38 0.1 undecidable manual P 105 25.3524 111 -0.13 97
IV.MURB.HHZ. 2020-07-09T19:55:22.80 0.1 undecidable manual P 311 27.9498 50 -0.13 97
IV.SNTG.HHZ. 2020-07-09T19:55:21.77 0.1 undecidable manual P 36 21.4674 115 -0.02 100
IV.ATCC.EHZ. 2020-07-09T19:55:20.81 0.1 undecidable manual P 309 15.2736 123 0.1 99
IV.MML1.EHZ. 2020-07-09T19:55:20.88 0.1 undecidable manual P 83 15.1737 123 0.2 97
IV.CESI.HHZ. 2020-07-09T19:55:20.64 0.1 undecidable manual P 137 14.0748 125 0.13 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.2 0.00017199999999999998 0.16 AML other m 2020-07-09T19:55:23.69
IV.ATCC.EHE. ML:1.4 0.000265 0.24 AML other m 2020-07-09T19:55:23.80
IV.ATCC.EHN. ML:1.2 0.000152 0.1 AML other m 2020-07-09T19:55:23.89
IV.CESI.HHN. ML:1.1 0.0001245 0.58 AML other m 2020-07-09T19:55:24.48
IV.SNTG.HHN. ML:0.6 0.00002715 0.22 AML other m 2020-07-09T19:55:26.15
IV.SNTG.HHE. ML:0.6 0.0000305 1.2 AML other m 2020-07-09T19:55:26.29
IV.FDMO.HHE. ML:1.0 0.00006720000000000001 0.12 AML other m 2020-07-09T19:55:26.49
IV.FDMO.HHN. ML:0.9 0.00004565 0.18 AML other m 2020-07-09T19:55:26.62
IV.MURB.HHE. ML:1.3 0.00010899999999999999 0.2 AML other m 2020-07-09T19:55:27.87
IV.MURB.HHN. ML:1.1 0.00006915 0.16 AML other m 2020-07-09T19:55:28.21
IV.ATFO.HHN. ML:0.7 0.00002045 0.24 AML other m 2020-07-09T19:55:29.63
IV.ATFO.HHE. ML:0.8 0.000024050000000000002 1.58 AML other m 2020-07-09T19:55:29.00
IV.NRCA.HHN. ML:1.2 0.0000524 0.1 AML other m 2020-07-09T19:55:30.89
IV.NRCA.HHE. ML:1.1 0.00004055 1.44 AML other m 2020-07-09T19:55:30.18
IV.PIEI.HHN. ML:0.6 0.000009295000000000002 1.36 AML other m 2020-07-09T19:55:35.91
IV.PIEI.HHE. ML:0.6 0.000011400000000000001 1.08 AML other m 2020-07-09T19:55:36.17
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