Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 10-09-2019 and time 13:44:46 (Italy) in region 3 km NE Norcia (PG)

A magnitude ML 0.8 earthquake occured in region: 3 km NE Norcia (PG), on

  • 10-09-2019 11:44:46 (UTC)
  • 10-09-2019 13:44:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8120, 13.1200 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.

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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 3 4957 4957
Castelsantangelo sul Nera MC 10 281 5238
Preci PG 10 724 5962
Cascia PG 14 3217 9179
Visso MC 14 1107 10286
Ussita MC 15 444 10730
Arquata del Tronto AP 15 1178 11908
Cerreto di Spoleto PG 17 1075 12983
Accumoli RI 17 667 13650
Montegallo AP 18 523 14173
Sellano PG 18 1079 15252
Poggiodomo PG 19 117 15369
Montemonaco AP 20 604 15973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
51 Km W of Teramo (54892 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km W of Pescara (121014 inhabitants)
98 Km N of Tivoli (56533 inhabitants)
100 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 0.8 2019-09-10
11:44:46		 42.8123 13.1198 11 2020-02-28
16:42:25		 Bollettino Sismico Italiano INGV 76516571
Reviewed
Rev100 		ML 0.8 2019-09-10
11:44:46		 42.8118 13.1193 10 2019-09-10
11:59:52		 Sala Sismica INGV-Roma 72283591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-10 11:44:46 ± 0.05
Latitude 42.8123 ± 0.0036
Longitude 13.1198 ± 0.0061
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76516571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 589
Semi-minor axis of confidence ellipse (meter) 254
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 116
Circular confidence region, given by single value of horizontal uncertainty (meter) 590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 136
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.28598
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 76516571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-14 15:22:11

ML:0.8

Field Value
Value 0.8
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 72283591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-10 11:59:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
AC.PUK.HHZ. 2019-09-10T11:46:40.07 3.0 undecidable manual Sn 4.67 0
MN.TIP.HHZ. 2019-09-10T11:46:30.16 3.0 undecidable manual Sg 10.39 0
IV.ISPIC.EHZ. 2019-09-10T11:46:17.71 3.0 positive manual Pg 19.1 0
MN.VAE.HHZ. 2019-09-10T11:46:05.52 3.0 undecidable manual Pg 16.9 0
GU.GSCL.HHZ. 2019-09-10T11:46:04.98 3.0 undecidable manual Sn 0.75 0
IV.SCIAC.HHZ. 2019-09-10T11:46:00.85 3.0 undecidable manual Pg 12.46 0
GU.RNCA.HHZ. 2019-09-10T11:45:57.31 3.0 negative manual Pg 17.49 0
GU.STV.HHZ. 2019-09-10T11:45:54.72 3.0 negative manual Pn 1.5 0
GE.MATE.HHZ. 2019-09-10T11:45:53.14 3.0 undecidable manual Sn 1.03 0
IV.SARZ.HHZ. 2019-09-10T11:45:50.24 3.0 undecidable manual Pn 7.3 0
IV.EUCT.HNZ. 2019-09-10T11:45:49.53 3.0 positive manual Pn 5.66 0
IV.CSNT.HHZ. 2019-09-10T11:45:43.00 3.0 undecidable manual Sn 1.14 0
IV.ORI.HHZ. 2019-09-10T11:45:27.13 3.0 undecidable manual Pg 4.53 0
IV.NARO.HHZ. 2019-09-10T11:45:26.09 3.0 undecidable manual Sg -0.37 0
IV.NDIM.HHZ. 2019-09-10T11:45:25.27 3.0 undecidable manual Pn -3.05 0
IV.SGRT.HHZ. 2019-09-10T11:45:19.95 3.0 undecidable manual S -2.68 0
IV.OSSC.HHZ. 2019-09-10T11:45:16.85 3.0 undecidable manual Pg 3.24 0
IV.LAV9.HNZ. 2019-09-10T11:45:11.78 3.0 undecidable manual S -2.36 0
IT.VNF1.HGZ. 2019-09-10T11:45:04.05 3.0 undecidable manual S -1.74 0
IV.CSP1.EHZ. 2019-09-10T11:44:57.75 0.6 undecidable manual S 13 31.746 50 0.01 48
IV.LNSS.HNZ. 2019-09-10T11:44:55.81 0.6 undecidable manual S 196 24.1536 50 0.11 48
IV.GAVE.EHE. 2019-09-10T11:44:55.32 0.6 undecidable manual S 234 22.6551 50 0 49
IV.FDMO.HHZ. 2019-09-10T11:44:55.77 0.6 undecidable manual S 354 25.0527 50 -0.17 47
IV.MMO1.EHZ. 2019-09-10T11:44:54.23 0.3 undecidable manual S 60 19.3695 118 -0.11 73
IV.CSP1.EHZ. 2019-09-10T11:44:53.10 0.1 undecidable manual P 13 31.746 50 0.03 96
IV.MC2.EHZ. 2019-09-10T11:44:52.51 0.3 undecidable manual S 27 12.3765 130 0.21 72
IV.FDMO.HHZ. 2019-09-10T11:44:51.96 0.3 undecidable manual P 354 25.0527 50 -0.06 73
IV.LNSS.HNZ. 2019-09-10T11:44:51.83 0.1 undecidable manual P 196 24.1536 50 -0.06 97
IV.MMO1.EHZ. 2019-09-10T11:44:51.00 0.3 undecidable manual P 60 19.3695 118 -0.1 73
IV.GAVE.EHE. 2019-09-10T11:44:51.71 0.3 undecidable manual P 234 22.6551 50 0.04 73
IV.MC2.EHZ. 2019-09-10T11:44:50.17 0.3 undecidable manual P 27 12.3765 130 0.24 71
IV.NRCA.HHZ. 2019-09-10T11:44:50.15 0.3 undecidable manual S 349 2.3976 167 -0.27 72
IV.NRCA.HHZ. 2019-09-10T11:44:48.93 0.1 undecidable manual P 349 2.3976 167 0.09 100
IV.RNI2.HHZ. 2019-09-10T11:44:48.73 3.0 negative manual P -0.08 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:1.1 0.00023643649 0.1408 AML other m 2019-09-10T11:44:50.25
IV.NRCA.HHN. ML:1.2 0.0002823352 0.16 AML other m 2019-09-10T11:44:50.25
IV.NRCA.HHE. ML:1.1 0.0001980334 0.1408 AML other m 2019-09-10T11:44:50.73
IV.NRCA.HNE. ML:1.0 0.00017367545 0.1408 AML other m 2019-09-10T11:44:50.80
IV.FDMO.HHN. ML:0.2 0.000010336885 0.1984 AML other m 2019-09-10T11:44:56.45
IV.FDMO.HHE. ML:-0.1 0.000007304794 0.16 AML other m 2019-09-10T11:44:57.19
IV.CSP1.EHN. ML:0.5 0.000015611794999999998 1.1808 AML other m 2019-09-10T11:45:09.28
IV.CSP1.EHE. ML:0.6 0.000020463805 0.8352 AML other m 2019-09-10T11:45:13.45
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