Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 18-09-2019 and time 19:42:00 (UTC) in region 3 km E Norcia (PG)

A magnitude ML 0.7 earthquake occured in region: 3 km E Norcia (PG), on

  • 18-09-2019 19:42:00 (UTC)
  • 18-09-2019 21:42:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8030, 13.1250 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 3 4957 4957
Castelsantangelo sul Nera MC 11 281 5238
Preci PG 11 724 5962
Cascia PG 13 3217 9179
Arquata del Tronto AP 15 1178 10357
Visso MC 15 1107 11464
Accumoli RI 16 667 12131
Ussita MC 16 444 12575
Cerreto di Spoleto PG 17 1075 13650
Montegallo AP 18 523 14173
Poggiodomo PG 19 117 14290
Sellano PG 19 1079 15369
Montemonaco AP 20 604 15973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
69 Km E of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
97 Km W of Pescara (121014 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
99 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
Bulletin
Rev1000 		ML 0.7 2019-09-18
19:42:00		 42.8033 13.1253 10 2020-02-28
16:42:27		 Bollettino Sismico Italiano INGV 76774571
Reviewed
Rev100 		ML 0.6 2019-09-18
19:41:59		 42.7732 13.2125 8 2019-09-18
20:02:36		 Sala Sismica INGV-Roma 72532601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-18 19:42:00 ± 0.05
Latitude 42.8033 ± 0.0027
Longitude 13.1253 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76774571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 315
Semi-minor axis of confidence ellipse (meter) 127
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 249
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.39480
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 76774571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-24 14:22:08

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 72532601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-18 20:02:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IMI.HHZ. 2019-09-18T19:43:48.89 3.0 undecidable manual Sn 0.14 0
IV.ECTS.EHZ. 2019-09-18T19:43:11.39 3.0 undecidable manual Pg 14.92 0
AC.VLO.HHZ. 2019-09-18T19:43:06.36 3.0 negative manual Pn 4.89 0
IV.MGR.HHZ. 2019-09-18T19:43:04.19 3.0 undecidable manual Sn 0.76 0
IV.SGRT.HHZ. 2019-09-18T19:42:50.08 3.0 undecidable manual Sg 7.12 0
IV.MCRV.HHZ. 2019-09-18T19:42:47.13 3.0 undecidable manual Sn 0.45 0
IT.ORP.HGZ. 2019-09-18T19:42:39.51 3.0 undecidable manual Sn -0.37 0
IV.COLB.HHZ. 2019-09-18T19:42:37.42 3.0 undecidable manual Sg 1.37 0
IV.TERO.HHZ. 2019-09-18T19:42:14.73 0.3 undecidable manual S 117 43.8228 50 -0.31 68
IV.MML1.EHE. 2019-09-18T19:42:13.11 0.6 undecidable manual S 340 36.6411 50 0.01 49
IV.MF5.EHZ. 2019-09-18T19:42:13.49 0.6 undecidable manual S 53 34.0437 50 1.09 34
IV.CSP1.EHZ. 2019-09-18T19:42:11.76 0.6 undecidable manual S 11 32.6451 50 -0.28 47
IV.CESI.HHE. 2019-09-18T19:42:10.88 0.6 undecidable manual S 321 28.6491 50 -0.09 49
IV.FDMO.HHZ. 2019-09-18T19:42:10.04 0.3 undecidable manual S 353 26.0517 110 -0.16 72
IV.SMA1.EHZ. 2019-09-18T19:42:10.04 0.6 undecidable manual S 138 25.6521 111 -0.04 49
IV.T1299.HNN. 2019-09-18T19:42:09.28 0.6 undecidable manual S 146 22.6551 113 0.17 48
IV.GAVE.EHE. 2019-09-18T19:42:09.29 0.6 undecidable manual S 237 22.4553 113 0.23 48
IV.TERO.HHZ. 2019-09-18T19:42:09.11 0.3 undecidable manual P 117 43.8228 50 0.2 70
IT.MTCL.HGE. 2019-09-18T19:42:09.10 0.6 undecidable manual S 334 23.4543 112 -0.26 47
IV.LNSS.HHE. 2019-09-18T19:42:09.40 0.3 undecidable manual S 197 23.2545 113 0.09 74
IV.MMO1.EHZ. 2019-09-18T19:42:08.05 0.3 undecidable manual S 57 19.5693 116 -0.07 75
IV.MTRA.EHE. 2019-09-18T19:42:08.81 0.6 undecidable manual S 103 22.6551 113 -0.29 47
IV.FEMA.HNE. 2019-09-18T19:42:08.08 0.6 undecidable manual S 341 18.6702 117 0.24 48
IV.MF5.EHZ. 2019-09-18T19:42:07.68 0.1 undecidable manual P 53 34.0437 50 0.28 93
IV.CSP1.EHZ. 2019-09-18T19:42:07.11 0.3 undecidable manual P 11 32.6451 50 -0.08 73
IV.MML1.EHE. 2019-09-18T19:42:07.55 0.6 undecidable manual P 340 36.6411 50 -0.25 47
IV.MC2.EHZ. 2019-09-18T19:42:06.58 0.3 undecidable manual S 23 13.0758 126 0.39 71
IV.CESI.HHE. 2019-09-18T19:42:06.48 0.1 undecidable manual P 321 28.6491 50 -0.1 97
IV.FDMO.HHZ. 2019-09-18T19:42:06.04 0.3 undecidable manual P 353 26.0517 110 -0.08 74
IV.SMA1.EHZ. 2019-09-18T19:42:05.82 0.3 undecidable manual P 138 25.6521 111 -0.23 71
IV.RNI2.HHZ. 2019-09-18T19:42:05.02 3.0 undecidable manual P 2.33 0
IV.LNSS.HHE. 2019-09-18T19:42:05.55 0.1 undecidable manual P 197 23.2545 113 -0.06 99
IV.T1299.HNN. 2019-09-18T19:42:05.56 0.1 undecidable manual P 146 22.6551 113 0.06 99
IV.GAVE.EHE. 2019-09-18T19:42:05.59 0.3 undecidable manual P 237 22.4553 113 0.13 73
IT.MTCL.HGE. 2019-09-18T19:42:05.53 0.3 undecidable manual P 334 23.4543 112 -0.11 73
IV.MTRA.EHE. 2019-09-18T19:42:05.31 0.3 undecidable manual P 103 22.6551 113 -0.18 73
IV.MMO1.EHZ. 2019-09-18T19:42:04.79 0.3 undecidable manual P 57 19.5693 116 -0.13 74
IV.FEMA.HNE. 2019-09-18T19:42:04.81 0.1 undecidable manual P 341 18.6702 117 0.05 100
IV.NRCA.HHE. 2019-09-18T19:42:03.94 0.3 undecidable manual S 345 3.4965 160 -0.18 75
IV.MC2.EHZ. 2019-09-18T19:42:03.97 0.3 undecidable manual P 23 13.0758 126 0.16 74
IV.NRCA.HHE. 2019-09-18T19:42:02.80 0.3 undecidable manual P 345 3.4965 160 0.19 75
IV.RMP.HHZ. 2019-09-18T19:42:01.99 3.0 positive manual P -0.5 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:0.4 0.00001480604 0.6944 AML other m 2019-09-18T19:42:05.71
IV.SMA1.EHN. ML:0.7 0.000027927414999999997 0.0416 AML other m 2019-09-18T19:42:06.76
IV.FDMO.HHE. ML:0.6 0.00002177734 0.1024 AML other m 2019-09-18T19:42:10.11
IV.FDMO.HHN. ML:0.6 0.000024945645 0.1408 AML other m 2019-09-18T19:42:10.27
IV.CSP1.EHN. ML:1.0 0.000042668940000000004 0.0288 AML other m 2019-09-18T19:42:11.37
IV.CSP1.EHE. ML:1.0 0.00003769433 0.2336 AML other m 2019-09-18T19:42:12.42
IV.TERO.HHN. ML:0.5 0.000010042886500000001 0.1024 AML other m 2019-09-18T19:42:14.86
IV.TERO.HHE. ML:0.5 0.0000091283405 0.0768 AML other m 2019-09-18T19:42:14.91
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