Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 30-07-2020 and time 17:29:04 (UTC) in region 5 km S Preci (PG)

A magnitude ML 1.3 earthquake occured in region: 5 km S Preci (PG), on

  • 30-07-2020 17:29:04 (UTC)
  • 30-07-2020 19:29:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8360, 13.0400 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
Preci PG 5 724 724
Norcia PG 7 4957 5681
Cerreto di Spoleto PG 10 1075 6756
Sellano PG 11 1079 7835
Castelsantangelo sul Nera MC 11 281 8116
Visso MC 11 1107 9223
Cascia PG 13 3217 12440
Ussita MC 15 444 12884
Poggiodomo PG 16 117 13001
Vallo di Nera PG 16 364 13365
Monte Cavallo MC 18 145 13510

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Foligno (57155 inhabitants)
44 Km NE of Terni (111501 inhabitants)
58 Km W of Teramo (54892 inhabitants)
61 Km SE of Perugia (166134 inhabitants)
61 Km NW of L'Aquila (69753 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
96 Km N of Guidonia Montecelio (88673 inhabitants)
98 Km W of Montesilvano (53738 inhabitants)
99 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 1.3 2020-07-30
17:29:04		 42.8362 13.0397 11 2020-07-30
17:37:44		 Sala Sismica INGV-Roma 81494571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-30 17:29:04 ± 0.05
Latitude 42.8362 ± 0.0027
Longitude 13.0397 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81494571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 289
Semi-minor axis of confidence ellipse (meter) 245
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 223
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 22
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.46585
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 81494571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-30 17:37:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SPS2.HHZ. 2020-07-30T17:30:52.38 3.0 undecidable manual Sg 4.23 0
ST.CARE.EHZ. 2020-07-30T17:30:52.32 3.0 undecidable manual Sn 3.97 0
IV.VOBA.HNZ. 2020-07-30T17:30:49.10 3.0 undecidable manual Sg 15.14 0
IV.USI.HHZ. 2020-07-30T17:30:32.08 3.0 undecidable manual Sn -9.99 0
IV.ESML.HHZ. 2020-07-30T17:30:23.90 3.0 negative manual Pg 7.32 0
IV.MILN.HNZ. 2020-07-30T17:30:13.24 3.0 undecidable manual Pg 13.46 0
IV.GMB.BHZ. 2020-07-30T17:30:04.34 3.0 undecidable manual Pn -8 0
IV.MSRU.HHZ. 2020-07-30T17:30:01.32 3.0 negative manual Pn -8.58 0
OX.ACOM.HHZ. 2020-07-30T17:29:54.64 3.0 positive manual Pn -1.72 0
IV.SLCN.HHZ. 2020-07-30T17:29:47.57 3.0 positive manual Pg 3.27 0
IV.SGO.HHZ. 2020-07-30T17:29:43.21 3.0 undecidable manual Pg 2.68 0
IV.PZUN.HHZ. 2020-07-30T17:29:40.26 3.0 undecidable manual Pg -2.36 0
IV.MTMR.EHZ. 2020-07-30T17:29:37.02 3.0 undecidable manual Pg 2.37 0
IV.GIUL.HHZ. 2020-07-30T17:29:26.54 3.0 undecidable manual Sn -9.99 0
IV.TERO.HHZ. 2020-07-30T17:29:20.67 0.1 undecidable manual S 117 51.7038 50 0.22 89
IV.ROSPO.HHZ. 2020-07-30T17:29:18.58 3.0 undecidable manual Pg -3.13 0
IV.ASSB.HHZ. 2020-07-30T17:29:17.02 0.1 undecidable manual S 307 38.5281 50 0.1 94
IV.CSP1.EHZ. 2020-07-30T17:29:15.09 0.1 undecidable manual S 25 31.3464 50 0.07 95
IV.MTRA.HNZ. 2020-07-30T17:29:14.61 0.1 undecidable manual S 107 30.3474 50 -0.14 94
IV.TERO.HHZ. 2020-07-30T17:29:13.41 0.1 undecidable manual P 117 51.7038 50 -0.14 90
IV.MMO1.EHZ. 2020-07-30T17:29:12.98 0.1 undecidable manual S 73 24.3534 50 -0.17 94
IV.CESI.HNE. 2020-07-30T17:29:12.43 0.1 undecidable manual S 330 21.6672 50 -0.01 97
IV.GAVE.EHZ. 2020-07-30T17:29:11.96 0.1 undecidable manual S 217 19.869 50 0.01 98
IT.MTCL.HGN. 2020-07-30T17:29:11.14 0.1 undecidable manual S 349 17.7711 121 -0.19 95
IV.ASSB.HHZ. 2020-07-30T17:29:11.44 0.1 undecidable manual P 307 38.5281 50 -0.07 94
IV.FEMA.HNN. 2020-07-30T17:29:10.41 0.1 undecidable manual S 3 13.9749 128 0.17 96
IV.CSP1.EHZ. 2020-07-30T17:29:10.59 0.1 undecidable manual P 25 31.3464 50 0.18 93
IV.MTRA.HNZ. 2020-07-30T17:29:10.25 0.1 undecidable manual P 107 30.3474 50 -0.01 96
IV.MC2.EHZ. 2020-07-30T17:29:10.64 0.1 undecidable manual S 55 14.7741 126 0.19 95
IV.MMO1.EHZ. 2020-07-30T17:29:09.36 0.1 undecidable manual P 73 24.3534 50 0.02 97
IV.NRCA.HHZ. 2020-07-30T17:29:08.13 0.1 undecidable manual S 93 6.0939 151 -0.27 96
IV.MC2.EHZ. 2020-07-30T17:29:08.03 0.1 undecidable manual P 55 14.7741 126 0.26 94
IV.GAVE.EHZ. 2020-07-30T17:29:08.81 0.1 undecidable manual P 217 19.869 50 0.17 95
IT.MTCL.HGN. 2020-07-30T17:29:08.39 0.1 undecidable manual P 349 17.7711 121 0.11 96
IV.CESI.HNE. 2020-07-30T17:29:08.74 0.1 undecidable manual P 330 21.6672 50 -0.19 94
IV.FEMA.HNN. 2020-07-30T17:29:07.37 0.1 undecidable manual P 3 13.9749 128 -0.28 94
IV.LPEL.HHZ. 2020-07-30T17:29:07.92 3.0 undecidable manual P -9.21 0
IV.NRCA.HHZ. 2020-07-30T17:29:06.61 0.1 undecidable manual P 93 6.0939 151 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.4 0.000402 0.16 AML other m 2020-07-30T17:29:08.18
IV.NRCA.HHE. ML:1.4 0.0003355 0.16 AML other m 2020-07-30T17:29:08.28
IV.GAVE.EHN. ML:1.0 0.00007875 0.7 AML other m 2020-07-30T17:29:12.22
IV.GAVE.EHE. ML:1.0 0.0000664 0.84 AML other m 2020-07-30T17:29:13.69
IV.APEC.HHE. ML:1.6 0.000047 0.48 AML other m 2020-07-30T17:29:47.49
IV.APEC.HHN. ML:1.5 0.00003455 0.06 AML other m 2020-07-30T17:29:47.72
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