Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 17-09-2019 and time 05:33:49 (Italy) in region 4 km E Norcia (PG)

A magnitude ML 1.3 earthquake occured in region: 4 km E Norcia (PG), on

  • 17-09-2019 03:33:49 (UTC)
  • 17-09-2019 05:33:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8030, 13.1350 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 10 281 5238
Preci PG 12 724 5962
Cascia PG 14 3217 9179
Arquata del Tronto AP 14 1178 10357
Visso MC 15 1107 11464
Accumoli RI 15 667 12131
Ussita MC 16 444 12575
Montegallo AP 17 523 13098
Cerreto di Spoleto PG 18 1075 14173
Montemonaco AP 19 604 14777
Poggiodomo PG 19 117 14894
Sellano PG 20 1079 15973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
49 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
96 Km W of Pescara (121014 inhabitants)
97 Km N of Tivoli (56533 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 1.3 2019-09-17
03:33:49		 42.8032 13.1353 10 2019-09-17
03:40:51		 Sala Sismica INGV-Roma 72478601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-17 03:33:49 ± 0.05
Latitude 42.8032 ± 0.0027
Longitude 13.1353 ± 0.0049
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 72478601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 449
Semi-minor axis of confidence ellipse (meter) 155
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) 450.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
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) 0.03417
Epicentral distance of station farthest from the epicenter (degree) 0.38851
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 72478601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-17 03:40:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2019-09-17T03:34:01.54 0.3 undecidable manual S 52 33.3444 50 0.58 65
IV.RM33.EHZ. 2019-09-17T03:34:00.82 0.1 undecidable manual S 169 33.2445 50 -0.11 96
IV.CSP1.EHZ. 2019-09-17T03:34:00.63 0.1 undecidable manual S 10 32.5452 50 -0.1 97
IV.CESI.HHZ. 2019-09-17T03:33:59.90 0.3 undecidable manual S 320 29.2485 50 0.05 74
IV.LNSS.HHZ. 2019-09-17T03:33:58.35 0.3 undecidable manual S 199 23.5542 113 0.12 73
IV.FDMO.HHZ. 2019-09-17T03:33:58.84 0.3 undecidable manual S 351 26.1516 50 -0.2 72
IV.GAVE.EHZ. 2019-09-17T03:33:58.28 0.1 undecidable manual S 238 23.1546 113 0.16 97
IV.TERO.HHZ. 2019-09-17T03:33:57.31 0.6 negative manual P 117 43.1235 50 -0.25 46
IV.ARRO.EHZ. 2019-09-17T03:33:57.14 0.1 undecidable manual P 231 39.0276 50 0.21 93
IV.MMO1.EHZ. 2019-09-17T03:33:56.60 0.3 undecidable manual S 56 18.87 118 -0.17 73
IV.MF5.EHZ. 2019-09-17T03:33:56.37 0.6 positive manual P 52 33.3444 50 0.31 46
IV.CSP1.EHZ. 2019-09-17T03:33:55.78 0.3 positive manual P 10 32.5452 50 -0.14 72
IV.MC2.EHZ. 2019-09-17T03:33:55.44 0.3 undecidable manual S 20 12.7761 128 0.45 70
IV.RM33.EHZ. 2019-09-17T03:33:55.92 0.1 undecidable manual P 169 33.2445 50 -0.12 96
IV.CESI.HHZ. 2019-09-17T03:33:55.36 0.3 undecidable manual P 320 29.2485 50 -0.05 74
IV.GAVE.EHZ. 2019-09-17T03:33:54.40 0.1 undecidable manual P 238 23.1546 113 -0.01 100
IV.LNSS.HHZ. 2019-09-17T03:33:54.42 0.1 undecidable manual P 199 23.5542 113 -0.06 99
IV.FDMO.HHZ. 2019-09-17T03:33:54.69 0.6 positive manual P 351 26.1516 50 -0.26 47
IV.MMO1.EHZ. 2019-09-17T03:33:53.51 0.3 undecidable manual P 56 18.87 118 -0.13 74
IV.NRCA.HHZ. 2019-09-17T03:33:52.77 0.1 undecidable manual S 333 3.7962 159 -0.3 97
IV.MC2.EHZ. 2019-09-17T03:33:52.76 1.0 positive manual P 20 12.7761 128 0.15 25
IV.NRCA.HHZ. 2019-09-17T03:33:51.61 0.3 undecidable manual P 333 3.7962 159 0.11 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:1.8 0.001105 0.18 AML other m 2019-09-17T03:33:52.86
IV.NRCA.HHE. ML:1.8 0.00117 0.18 AML other m 2019-09-17T03:33:52.95
IV.NRCA.HNN. ML:1.6 0.0006639999999999999 0.84 AML other m 2019-09-17T03:33:53.54
IV.NRCA.HHN. ML:1.5 0.0005635 0.34 AML other m 2019-09-17T03:33:53.54
IV.GAVE.EHN. ML:1.4 0.00014600000000000003 0.3 AML other m 2019-09-17T03:33:58.56
IV.LNSS.HHE. ML:1.4 0.00015050000000000003 0.42 AML other m 2019-09-17T03:33:58.59
IV.LNSS.HHN. ML:1.4 0.00016949999999999997 0.16 AML other m 2019-09-17T03:33:58.65
IV.FDMO.HHN. ML:1.0 0.000055900000000000004 1.16 AML other m 2019-09-17T03:33:58.95
IV.FDMO.HHE. ML:0.9 0.00004605 0.14 AML other m 2019-09-17T03:33:59.61
IV.GAVE.EHE. ML:1.5 0.00018449999999999999 1.46 AML other m 2019-09-17T03:33:59.20
IV.CESI.HHN. ML:1.3 0.0001059 0.52 AML other m 2019-09-17T03:34:00.15
IV.CESI.HHE. ML:1.1 0.00006405 0.34 AML other m 2019-09-17T03:34:00.22
IV.TERO.HHE. ML:0.8 0.000021499999999999997 0.6 AML other m 2019-09-17T03:34:03.45
IV.TERO.HHN. ML:0.7 0.0000172 0.08 AML other m 2019-09-17T03:34:03.76
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