Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 09-09-2019 and time 20:09:45 (Italy) in region 3 km NE Norcia (PG)

A magnitude ML 0.5 earthquake occured in region: 3 km NE Norcia (PG), on

  • 09-09-2019 18:09:45 (UTC)
  • 09-09-2019 20:09:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8190, 13.1160 at 11 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 9 281 5238
Preci PG 9 724 5962
Visso MC 13 1107 7069
Cascia PG 14 3217 10286
Ussita MC 14 444 10730
Arquata del Tronto AP 16 1178 11908
Cerreto di Spoleto PG 16 1075 12983
Sellano PG 17 1079 14062
Accumoli RI 18 667 14729
Montegallo AP 18 523 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)
57 Km NW of L'Aquila (69753 inhabitants)
67 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)
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
Bulletin
Rev1000 		ML 0.5 2019-09-09
18:09:45		 42.8192 13.1163 11 2020-02-28
16:41:50		 Bollettino Sismico Italiano INGV 72427971
Reviewed
Rev100 		ML 0.7 2019-09-09
18:09:45		 42.8187 13.1162 11 2019-09-09
18:28:00		 Sala Sismica INGV-Roma 72266071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-09 18:09:45 ± 0.04
Latitude 42.8192 ± 0.0018
Longitude 13.1163 ± 0.0037
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 72427971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 308
Semi-minor axis of confidence ellipse (meter) 203
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 84
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 45
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 28
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) 0.40290
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 72427971
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-09-15 07:25:56

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 72266071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-09 18:28:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.CLTB.HHZ. 2019-09-09T18:11:00.32 3.0 negative manual Pg 5.39 0
IV.SPS2.HHZ. 2019-09-09T18:10:45.28 3.0 positive manual Pn 1.53 0
IV.VENL.HNZ. 2019-09-09T18:10:28.68 3.0 undecidable manual Pg 2.02 0
IX.STN3.HHZ.02 2019-09-09T18:10:27.19 3.0 positive manual Pg 1.06 0
GU.GSCL.HHZ. 2019-09-09T18:10:21.43 3.0 negative manual Pn 0.45 0
IV.VBKN.HHZ. 2019-09-09T18:10:14.58 3.0 negative manual Pg -0.3 0
IV.CPGN.EHZ. 2019-09-09T18:10:04.09 3.0 undecidable manual Pg -1.09 0
IV.RCAV.EHZ. 2019-09-09T18:10:01.33 3.0 undecidable manual S -4.42 0
IV.CSP1.EHZ. 2019-09-09T18:09:56.09 0.3 undecidable manual S 13 31.0467 50 0.06 72
IV.FDMO.HHZ. 2019-09-09T18:09:54.05 0.3 undecidable manual S 354 24.2535 50 -0.14 72
IV.T1299.EHE. 2019-09-09T18:09:54.59 0.3 undecidable manual S 147 24.5532 50 0.31 69
IV.LNSS.HHE. 2019-09-09T18:09:54.18 0.6 undecidable manual S 195 24.753 50 -0.16 47
IV.GAVE.EHE. 2019-09-09T18:09:53.68 0.6 undecidable manual S 232 22.9548 50 -0.17 48
IV.MTRA.EHE. 2019-09-09T18:09:53.89 0.6 undecidable manual S 107 23.8539 50 -0.2 47
IV.MOMA.HNZ. 2019-09-09T18:09:53.83 0.3 undecidable manual P 268 44.5221 50 0.29 67
IV.ASSB.HHE. 2019-09-09T18:09:53.42 0.1 undecidable manual P 304 44.7219 50 -0.15 92
IT.MTCL.HGZ. 2019-09-09T18:09:53.33 0.3 undecidable manual S 334 21.5673 50 -0.16 72
IV.MMO1.EHZ. 2019-09-09T18:09:52.59 0.3 undecidable manual S 62 19.2696 50 -0.28 70
IV.MF5.EHE. 2019-09-09T18:09:52.09 0.6 undecidable manual P 56 33.5442 50 0.23 46
IV.MML1.EHE. 2019-09-09T18:09:52.03 0.1 undecidable manual P 340 34.743 50 0 96
IV.FEMA.HNE. 2019-09-09T18:09:52.15 0.6 undecidable manual S 341 16.7721 50 -0.05 49
IV.RM33.EHE. 2019-09-09T18:09:52.03 0.6 undecidable manual P 167 35.3424 50 -0.1 47
IV.CSP1.EHZ. 2019-09-09T18:09:51.61 0.1 undecidable manual P 13 31.0467 50 0.14 94
IV.LNSS.HHE. 2019-09-09T18:09:50.43 0.1 undecidable manual P 195 24.753 50 -0.07 97
IT.MTCL.HGZ. 2019-09-09T18:09:50.04 0.3 undecidable manual P 334 21.5673 50 0.03 74
IV.FDMO.HHZ. 2019-09-09T18:09:50.52 0.1 undecidable manual P 354 24.2535 50 0.1 96
IV.MC2.EHZ. 2019-09-09T18:09:50.86 0.3 undecidable manual S 30 11.7771 133 -0.01 75
IV.GAVE.EHE. 2019-09-09T18:09:50.25 0.1 undecidable manual P 232 22.9548 50 0.03 98
IV.T1299.EHE. 2019-09-09T18:09:50.59 0.1 undecidable manual P 147 24.5532 50 0.12 96
IV.MTRA.EHE. 2019-09-09T18:09:50.32 0.1 undecidable manual P 107 23.8539 50 -0.04 98
IV.SMA1.EHE. 2019-09-09T18:09:50.66 0.6 undecidable manual P 139 27.4503 50 -0.26 46
IV.FEMA.HNE. 2019-09-09T18:09:49.57 0.6 undecidable manual P 341 16.7721 50 0.31 47
IV.MMO1.EHZ. 2019-09-09T18:09:49.63 0.3 undecidable manual P 62 19.2696 50 -0.03 74
IV.CERT.HHZ. 2019-09-09T18:09:48.41 3.0 positive manual P -4.29 0
IV.NRCA.HHZ. 2019-09-09T18:09:48.86 0.1 undecidable manual S 354 1.5984 172 -0.27 97
IV.MC2.EHZ. 2019-09-09T18:09:48.69 0.1 undecidable manual P 30 11.7771 133 0.19 96
IV.NRCA.HHZ. 2019-09-09T18:09:47.59 0.1 undecidable manual P 354 1.5984 172 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.6 0.00002315 1.12 AML other m 2019-09-09T18:09:55.01
IV.FDMO.HHN. ML:0.6 0.000027053834999999997 1.5232 AML other m 2019-09-09T18:09:54.29
IV.CSP1.EHN. ML:0.6 0.000022268400000000002 0.3584 AML other m 2019-09-09T18:09:56.79
IV.CSP1.EHE. ML:0.5 0.000016742835 2.3168 AML other m 2019-09-09T18:09:56.42
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