Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 30-10-2019 and time 19:37:57 (Italy) in region 4 km E Norcia (PG)

A magnitude ML 0.7 earthquake occured in region: 4 km E Norcia (PG), on

  • 30-10-2019 18:37:57 (UTC)
  • 30-10-2019 19:37:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7910, 13.1380 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 4 4957 4957
Castelsantangelo sul Nera MC 12 281 5238
Preci PG 13 724 5962
Cascia PG 13 3217 9179
Arquata del Tronto AP 13 1178 10357
Accumoli RI 14 667 11024
Visso MC 16 1107 12131
Montegallo AP 17 523 12654
Ussita MC 17 444 13098
Cerreto di Spoleto PG 18 1075 14173
Poggiodomo PG 19 117 14290
Cittareale RI 19 482 14772
Montemonaco AP 20 604 15376

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
49 Km W of Teramo (54892 inhabitants)
53 Km NW of L'Aquila (69753 inhabitants)
70 Km SE of Perugia (166134 inhabitants)
88 Km W of Montesilvano (53738 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km W of Pescara (121014 inhabitants)
96 Km N of Tivoli (56533 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
98 Km NW of Chieti (51815 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 0.7 2019-10-30
18:37:57		 42.791 13.1378 11 2019-10-30
18:59:51		 Sala Sismica INGV-Roma 73538221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-30 18:37:57 ± 0.08
Latitude 42.7910 ± 0.0045
Longitude 13.1378 ± 0.0074
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 73538221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 584
Semi-minor axis of confidence ellipse (meter) 383
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 60
Circular confidence region, given by single value of horizontal uncertainty (meter) 580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38131
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 73538221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-30 18:59:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GALF.HHZ. 2019-10-30T18:39:40.06 3.0 undecidable manual Sn -3.74 0
IV.SPS2.HHZ. 2019-10-30T18:39:34.93 3.0 undecidable manual Sg 20.02 0
AC.VLO.HHZ. 2019-10-30T18:39:34.17 3.0 undecidable manual Sn -4.15 0
IV.NDIM.HHZ. 2019-10-30T18:39:32.12 3.0 undecidable manual Sg 14.83 0
IV.PZUN.HHZ. 2019-10-30T18:38:52.24 3.0 undecidable manual Sg 10.8 0
IV.RESU.HHZ. 2019-10-30T18:38:46.84 3.0 undecidable manual Pn -5.41 0
IV.CMPR.HHZ. 2019-10-30T18:38:41.00 3.0 undecidable manual Sn -2.99 0
IV.SPS2.HHZ. 2019-10-30T18:38:36.70 3.0 undecidable manual Pn 1.47 0
IV.NDIM.HHZ. 2019-10-30T18:38:36.84 3.0 positive manual Pn 0.27 0
CR.ZAG.BHZ. 2019-10-30T18:38:33.78 3.0 undecidable manual Pn -5.69 0
IV.CELB.HHZ. 2019-10-30T18:38:33.37 3.0 undecidable manual Pn 4.09 0
IV.CMPR.HHZ. 2019-10-30T18:38:25.57 3.0 undecidable manual Pg 7.71 0
IV.SRES.HHZ. 2019-10-30T18:38:19.18 3.0 undecidable manual Sn -3.18 0
IV.LRP.EHZ. 2019-10-30T18:38:13.39 3.0 undecidable manual Sn 1.87 0
IV.TERO.HHZ. 2019-10-30T18:38:10.95 0.6 undecidable manual S 116 42.3243 50 -0.09 49
IV.CSP1.EHZ. 2019-10-30T18:38:08.87 0.6 undecidable manual S 9 33.8439 50 0.1 49
IV.CESI.HNN. 2019-10-30T18:38:07.73 0.6 undecidable manual S 321 30.3474 50 -0.12 49
IV.FDMO.HHZ. 2019-10-30T18:38:06.98 0.3 undecidable manual S 351 27.5502 50 -0.12 74
IV.SMA1.EHZ. 2019-10-30T18:38:06.25 0.6 undecidable manual S 138 23.9538 50 0.1 50
IV.CERT.HHZ. 2019-10-30T18:38:06.71 3.0 negative manual Pg 4.79 0
IV.TERO.HHZ. 2019-10-30T18:38:05.02 0.6 undecidable manual P 116 42.3243 50 -0.15 48
IV.LNSS.HHZ. 2019-10-30T18:38:05.85 0.6 undecidable manual S 201 22.3554 50 0.15 50
IV.MTRA.HNE. 2019-10-30T18:38:05.31 0.6 undecidable manual S 100 21.3675 116 -0.12 50
IV.MMO1.EHZ. 2019-10-30T18:38:04.70 0.3 undecidable manual S 52 19.4694 118 -0.14 75
IV.CESI.HNN. 2019-10-30T18:38:03.27 0.3 undecidable manual P 321 30.3474 50 -0.05 75
IV.MC2.EHZ. 2019-10-30T18:38:03.68 0.6 undecidable manual S 17 13.9749 127 0.45 47
IV.FDMO.HHZ. 2019-10-30T18:38:03.34 0.6 undecidable manual P 351 27.5502 50 0.45 46
IV.CSP1.EHZ. 2019-10-30T18:38:03.69 0.3 undecidable manual P 9 33.8439 50 -0.17 73
IV.MTRA.HNE. 2019-10-30T18:38:02.06 0.1 undecidable manual P 100 21.3675 116 0.13 100
IV.LNSS.HHZ. 2019-10-30T18:38:02.18 0.3 undecidable manual P 201 22.3554 50 0.09 75
IV.SMA1.EHZ. 2019-10-30T18:38:02.33 0.3 undecidable manual P 138 23.9538 50 -0.02 76
IV.NRCA.HHZ. 2019-10-30T18:38:01.38 0.3 undecidable manual S 338 5.0949 154 0.17 76
IT.VNF1.HGZ. 2019-10-30T18:38:01.40 3.0 negative manual Pn 1.41 0
IV.MMO1.EHZ. 2019-10-30T18:38:01.56 0.3 undecidable manual P 52 19.4694 118 -0.03 77
IV.MC2.EHZ. 2019-10-30T18:38:00.94 0.3 undecidable manual P 17 13.9749 127 0.28 74
IV.NRCA.HHZ. 2019-10-30T18:37:58.70 0.3 undecidable manual P 338 5.0949 154 -0.79 63
IT.PLTA.HNZ. 2019-10-30T18:37:57.76 3.0 undecidable manual P 0.89 0
IV.FAGN.HHZ. 2019-10-30T18:37:56.30 3.0 undecidable manual P 1.11 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.0 0.00009025 0.58 AML other m 2019-10-30T18:38:03.04
IV.NRCA.HHE. ML:0.0 0.00008779999999999999 0.42 AML other m 2019-10-30T18:38:03.60
IV.LNSS.HHN. ML:0.8 0.00003795 0.98 AML other m 2019-10-30T18:38:06.49
IV.LNSS.HHE. ML:0.9 0.0000564 0.52 AML other m 2019-10-30T18:38:07.10
IV.FDMO.HHN. ML:0.6 0.000020950000000000004 0.34 AML other m 2019-10-30T18:38:07.39
IV.FDMO.HHE. ML:0.4 0.000015730470500000004 0.256 AML other m 2019-10-30T18:38:07.50
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