Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 30-07-2020 and time 04:58:32 (Italy) in region 4 km SW Valfabbrica (PG)

A magnitude ML 1.0 earthquake occured in region: 4 km SW Valfabbrica (PG), on

  • 30-07-2020 02:58:32 (UTC)
  • 30-07-2020 04:58:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1360, 12.5730 at 8 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
Valfabbrica PG 4 3389 3389
Bastia Umbra PG 8 21874 25263
Assisi PG 8 28299 53562
Perugia PG 15 166134 219696
Bettona PG 15 4367 224063
Cannara PG 16 4305 228368
Torgiano PG 17 6725 235093
Valtopina PG 17 1398 236491
Spello PG 18 8645 245136
Nocera Umbra PG 18 5839 250975

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km E of Perugia (166134 inhabitants)
23 Km NW of Foligno (57155 inhabitants)
64 Km N of Terni (111501 inhabitants)
67 Km SE of Arezzo (99543 inhabitants)
87 Km SW of Fano (60888 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
90 Km SW of Pesaro (94582 inhabitants)
93 Km SW of Ancona (100861 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 2020-07-30
02:58:32		 43.1363 12.5728 8 2020-07-30
03:08:41		 Sala Sismica INGV-Roma 81471951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-30 02:58:32 ± 0.06
Latitude 43.1363 ± 0.0027
Longitude 12.5728 ± 0.0037
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81471951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 369
Semi-minor axis of confidence ellipse (meter) 126
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 53
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.49822
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 19
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 28
Type of magnitude ML
Reference to an origin 81471951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-30 03:08:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2020-07-30T02:58:50.90 0.1 undecidable manual S 127 55.3002 50 0.04 92
IV.CSP1.EHZ. 2020-07-30T02:58:50.17 0.1 undecidable manual S 95 51.4152 50 0.35 87
IV.EL6.EHZ. 2020-07-30T02:58:49.30 0.1 undecidable manual S 63 47.8188 50 0.45 86
IV.ARVD.HHZ. 2020-07-30T02:58:49.60 0.1 undecidable manual S 36 49.9167 50 0.17 90
IV.MGAB.HHZ. 2020-07-30T02:58:48.82 0.1 undecidable manual S 237 44.8218 50 0.75 77
IV.PIEI.HHZ. 2020-07-30T02:58:48.07 0.1 undecidable manual S 356 44.4222 50 0.12 92
IV.FDMO.HHZ. 2020-07-30T02:58:47.53 0.1 undecidable manual S 105 43.1235 50 -0.08 93
IV.FRON.EHZ. 2020-07-30T02:58:47.62 0.1 undecidable manual S 16 44.0226 50 -0.24 90
IV.MOMA.HNE. 2020-07-30T02:58:46.07 0.3 undecidable manual S 180 36.8298 50 0.13 70
IV.ATPI.EHZ. 2020-07-30T02:58:45.83 0.1 undecidable manual S 338 37.5291 50 -0.27 91
IV.ATMI.HHZ. 2020-07-30T02:58:44.58 0.1 undecidable manual S 312 33.0447 104 -0.21 92
IV.MMO1.EHZ. 2020-07-30T02:58:44.87 3.0 negative manual P -0.11 0
IV.CESI.HHZ. 2020-07-30T02:58:43.79 0.1 undecidable manual S 118 30.5472 105 -0.19 93
IV.ATVO.HHZ. 2020-07-30T02:58:43.65 0.1 undecidable manual S 334 30.3474 105 -0.27 92
IV.ARVD.HHZ. 2020-07-30T02:58:42.37 0.1 undecidable manual P 36 49.9167 50 -0.11 91
IV.ATFO.HHZ. 2020-07-30T02:58:42.60 0.1 undecidable manual S 360 25.5522 108 0.3 92
IV.NRCA.HHZ. 2020-07-30T02:58:42.90 0.1 undecidable manual P 127 55.3002 50 -0.41 85
IV.CSP1.EHZ. 2020-07-30T02:58:42.54 0.1 undecidable manual P 95 51.4152 50 -0.17 90
IV.NARO.HHZ. 2020-07-30T02:58:42.68 3.0 positive manual P -0.27 0
IV.FDMO.HHZ. 2020-07-30T02:58:41.06 0.1 undecidable manual P 105 43.1235 50 -0.37 88
IV.EL6.EHZ. 2020-07-30T02:58:41.95 0.1 undecidable manual P 63 47.8188 50 -0.2 90
IV.FOSV.EHZ. 2020-07-30T02:58:41.73 0.1 undecidable manual S 41 23.2545 109 0.18 95
IV.FRON.EHZ. 2020-07-30T02:58:41.37 0.1 undecidable manual P 16 44.0226 50 -0.21 91
IV.MGAB.HHZ. 2020-07-30T02:58:41.64 0.1 undecidable manual P 237 44.8218 50 -0.06 93
IV.PIEI.HHZ. 2020-07-30T02:58:41.64 0.1 undecidable manual P 356 44.4222 50 0.01 94
IV.ATLO.HNZ. 2020-07-30T02:58:41.67 0.1 undecidable manual S 326 23.9538 109 -0.1 96
IV.MOMA.HNE. 2020-07-30T02:58:40.92 0.3 undecidable manual P 180 36.8298 50 0.45 65
IV.ATPI.EHZ. 2020-07-30T02:58:40.27 0.1 undecidable manual P 338 37.5291 50 -0.29 90
IV.CESI.HHZ. 2020-07-30T02:58:39.08 0.1 undecidable manual P 118 30.5472 105 -0.26 92
IV.ATVO.HHZ. 2020-07-30T02:58:39.05 0.1 undecidable manual P 334 30.3474 105 -0.25 92
IV.ATMI.HHZ. 2020-07-30T02:58:39.69 0.1 undecidable manual P 312 33.0447 104 -0.12 94
IV.MURB.HHZ. 2020-07-30T02:58:39.24 0.1 undecidable manual S 344 14.5743 119 0.44 91
IV.ASSB.HHZ. 2020-07-30T02:58:38.13 0.1 undecidable manual S 146 12.4764 123 -0.05 99
IV.ATFO.HHZ. 2020-07-30T02:58:38.66 0.1 undecidable manual P 360 25.5522 108 0.29 92
IV.ATLO.HNZ. 2020-07-30T02:58:37.95 0.1 undecidable manual P 326 23.9538 109 -0.11 96
IV.FOSV.EHZ. 2020-07-30T02:58:37.97 0.1 undecidable manual P 41 23.2545 109 0.03 98
IV.ASSB.HHZ. 2020-07-30T02:58:36.04 0.1 negative manual P 146 12.4764 123 0.05 99
IV.MURB.HHZ. 2020-07-30T02:58:36.61 0.1 negative manual P 344 14.5743 119 0.26 94
IV.ATCC.EHZ. 2020-07-30T02:58:36.93 0.1 undecidable manual S 45 7.6812 137 0.04 100
IV.ATCC.EHZ. 2020-07-30T02:58:35.40 0.1 positive manual P 45 7.6812 137 0.16 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHN. ML:1.5 0.0005715 0.36 AML other m 2020-07-30T02:58:37.52
IV.ATCC.EHE. ML:1.6 0.000637 1.6 AML other m 2020-07-30T02:58:37.80
IV.ASSB.HHN. ML:1.3 0.0002535 0.46 AML other m 2020-07-30T02:58:38.53
IV.ASSB.HHE. ML:1.4 0.000334 0.16 AML other m 2020-07-30T02:58:38.69
IV.MURB.HHE. ML:1.7 0.0005335 0.28 AML other m 2020-07-30T02:58:39.69
IV.MURB.HHN. ML:1.5 0.0003655 1.72 AML other m 2020-07-30T02:58:40.12
IV.FOSV.EHE. ML:0.9 0.00005605 1.06 AML other m 2020-07-30T02:58:42.09
IV.FOSV.EHN. ML:1.0 0.000063 0.16 AML other m 2020-07-30T02:58:42.08
IV.ATVO.HHN. ML:0.8 0.0000292 1.18 AML other m 2020-07-30T02:58:44.04
IV.ATVO.HHE. ML:1.0 0.000054550000000000005 0.26 AML other m 2020-07-30T02:58:44.64
IV.CESI.HHE. ML:1.0 0.00004905 1.66 AML other m 2020-07-30T02:58:44.90
IV.CESI.HHN. ML:0.9 0.000038599999999999996 1.68 AML other m 2020-07-30T02:58:45.88
IV.ATMI.HHN. ML:1.1 0.000054999999999999995 0.5 AML other m 2020-07-30T02:58:45.54
IV.ATMI.HHE. ML:1.1 0.00004865 0.24 AML other m 2020-07-30T02:58:46.60
IV.ATPI.EHE. ML:0.6 0.00001735 0.58 AML other m 2020-07-30T02:58:47.21
IV.FDMO.HHE. ML:0.8 0.000017849999999999997 0.1 AML other m 2020-07-30T02:58:47.69
IV.FDMO.HHN. ML:0.9 0.000024050000000000002 0.62 AML other m 2020-07-30T02:58:47.74
IV.ATPI.EHN. ML:0.6 0.000017100000000000002 0.8 AML other m 2020-07-30T02:58:47.80
IV.FRON.EHE. ML:1.0 0.000029949999999999996 0.14 AML other m 2020-07-30T02:58:48.87
IV.PIEI.HHE. ML:0.9 0.00002405 0.72 AML other m 2020-07-30T02:58:48.92
IV.PIEI.HHN. ML:0.9 0.00002505 0.34 AML other m 2020-07-30T02:58:49.19
IV.FRON.EHN. ML:1.1 0.0000383 0.4 AML other m 2020-07-30T02:58:49.39
IV.MGAB.HHN. ML:1.1 0.0000415 0.48 AML other m 2020-07-30T02:58:49.59
IV.ARVD.HHN. ML:1.1 0.000031 1.82 AML other m 2020-07-30T02:58:50.99
IV.ARVD.HHE. ML:1.1 0.000034099999999999995 0.48 AML other m 2020-07-30T02:58:50.38
IV.MGAB.HHE. ML:1.0 0.0000317 1.2 AML other m 2020-07-30T02:58:50.35
IV.NRCA.HHN. ML:0.9 0.000022 1.28 AML other m 2020-07-30T02:58:52.28
IV.NRCA.HHE. ML:0.8 0.0000154 0.66 AML other m 2020-07-30T02:58:52.70
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