Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 07-08-2019 and time 09:18:54 (Italy) in region 7 km SE Norcia (PG)

A magnitude ML 1.0 earthquake occured in region: 7 km SE Norcia (PG), on

  • 07-08-2019 07:18:54 (UTC)
  • 07-08-2019 09:18:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7540, 13.1650 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
Norcia PG 7 4957 4957
Accumoli RI 9 667 5624
Arquata del Tronto AP 11 1178 6802
Cascia PG 13 3217 10019
Cittareale RI 15 482 10501
Castelsantangelo sul Nera MC 16 281 10782
Montegallo AP 17 523 11305
Amatrice RI 17 2657 13962
Preci PG 17 724 14686
Poggiodomo PG 19 117 14803

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km SE of Foligno (57155 inhabitants)
45 Km W of Teramo (54892 inhabitants)
47 Km E of Terni (111501 inhabitants)
49 Km NW of L'Aquila (69753 inhabitants)
74 Km SE of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km W of Pescara (121014 inhabitants)
93 Km NE of Tivoli (56533 inhabitants)
94 Km W of Chieti (51815 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
100 Km S 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 2019-08-07
07:18:54		 42.7538 13.1648 10 2019-08-07
07:27:54		 Sala Sismica INGV-Roma 71240201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-07 07:18:54 ± 0.08
Latitude 42.7538 ± 0.0036
Longitude 13.1648 ± 0.0086
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 71240201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 737
Semi-minor axis of confidence ellipse (meter) 124
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 293
Circular confidence region, given by single value of horizontal uncertainty (meter) 740.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 172
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 9
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) 0.33904
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 71240201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-07 07:27:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RRL.HHZ. 2019-08-07T07:21:13.97 3.0 undecidable manual Sn 6.68 0
AC.VLO.HHZ. 2019-08-07T07:20:59.47 3.0 undecidable manual Sn -1.93 0
GU.ENR.HHZ. 2019-08-07T07:20:52.31 3.0 undecidable manual Sn 1.74 0
IV.SPS2.HHZ. 2019-08-07T07:20:51.11 3.0 undecidable manual Sg 17.68 0
OX.CIMO.HHZ. 2019-08-07T07:20:45.74 3.0 undecidable manual Sg 13.5 0
IV.ILLI.HHZ. 2019-08-07T07:20:39.17 3.0 undecidable manual Sn -1.31 0
IV.NOCI.HHZ. 2019-08-07T07:20:34.20 3.0 undecidable manual Sg 16.41 0
IV.CROCE.HHZ. 2019-08-07T07:20:24.65 3.0 undecidable manual Pg 12.17 0
IV.TDS.HHZ. 2019-08-07T07:20:22.37 3.0 undecidable manual Sn -3.82 0
AC.VLO.HHZ. 2019-08-07T07:20:11.13 3.0 negative manual Pn 7.47 0
GU.STV.HHZ. 2019-08-07T07:20:05.15 3.0 undecidable manual Pn 6.61 0
IV.CORL.HHZ. 2019-08-07T07:20:04.85 3.0 undecidable manual Pg 8.02 0
IV.ZONE.HHZ. 2019-08-07T07:19:58.60 3.0 undecidable manual Pg 9.63 0
IT.DANT.HNZ. 2019-08-07T07:19:50.79 3.0 undecidable manual Pn 0.15 0
IV.SARZ.HHZ. 2019-08-07T07:19:48.26 3.0 undecidable manual Pn -0.35 0
IV.IST3.HHZ. 2019-08-07T07:19:48.04 3.0 positive manual Pn -0.28 0
IT.FIE.HGZ. 2019-08-07T07:19:48.54 3.0 undecidable manual Sg 2.78 0
IV.BRSN.EHZ. 2019-08-07T07:19:47.89 3.0 undecidable manual Sn 1.33 0
IV.MESG.HHZ. 2019-08-07T07:19:47.00 3.0 undecidable manual Pn -0.61 0
IV.TDS.HHZ. 2019-08-07T07:19:45.36 3.0 undecidable manual Pn 1.48 0
IV.PTRJ.HNZ. 2019-08-07T07:19:32.94 3.0 undecidable manual S 0.28 0
IV.CPGN.EHZ. 2019-08-07T07:19:31.97 3.0 undecidable manual Sn -2.19 0
IV.CSP1.EHZ. 2019-08-07T07:19:07.23 0.3 undecidable manual S 5 37.629 50 -0.16 70
IV.TERO.HHZ. 2019-08-07T07:19:07.66 3.0 undecidable manual S 0
IV.LPEL.HHZ. 2019-08-07T07:19:04.35 3.0 undecidable manual P -0.44 0
IV.TERO.HHZ. 2019-08-07T07:19:03.73 3.0 undecidable manual P 0
IV.LNSS.HHZ. 2019-08-07T07:19:02.22 0.1 undecidable manual S 211 19.5693 117 -0.06 99
IV.MMO1.EHZ. 2019-08-07T07:19:02.62 0.3 undecidable manual S 39 20.868 116 -0.05 74
IV.CSP1.EHZ. 2019-08-07T07:19:02.02 1.0 negative manual P 5 37.629 50 0.01 24
IV.FDMO.HHZ. 2019-08-07T07:19:01.64 1.0 negative manual P 349 31.9458 50 0.5 22
IV.NRCA.HHZ. 2019-08-07T07:18:59.43 0.1 undecidable manual S 335 9.7791 136 -0.07 100
IV.LNSS.HHZ. 2019-08-07T07:18:59.06 0.1 undecidable manual P 211 19.5693 117 0 100
IV.MMO1.EHZ. 2019-08-07T07:18:59.34 0.3 undecidable manual P 39 20.868 116 0.06 74
IV.NRCA.HHZ. 2019-08-07T07:18:57.64 0.3 undecidable manual P 335 9.7791 136 0.19 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.3 0.00023750000000000003 0.1 AML other m 2019-08-07T07:18:59.52
IV.NRCA.HHE. ML:1.2 0.00022349999999999998 1.22 AML other m 2019-08-07T07:18:59.74
IV.NRCA.HNE. ML:1.2 0.00021511485000000002 0.0992 AML other m 2019-08-07T07:19:01.13
IV.NRCA.HNN. ML:1.2 0.00021322534999999998 0.0896 AML other m 2019-08-07T07:18:59.47
IV.CSP1.EHE. ML:0.7 0.0000192190535 2.0192 AML other m 2019-08-07T07:19:08.74
IV.CSP1.EHN. ML:0.4 0.00000766032 0.8608 AML other m 2019-08-07T07:19:07.46
IV.TERO.HHE. ML:0.6 0.000014830622000000002 0.1216 AML other m 2019-08-07T07:19:08.63
IV.TERO.HHN. ML:0.6 0.00001458273 0.0768 AML other m 2019-08-07T07:19:07.78
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
Waveforms Seismic signals in miniseed + resp format not available