Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 26-09-2019 and time 01:16:49 (Italy) in region 3 km NE Norcia (PG)

A magnitude ML 0.9 earthquake occured in region: 3 km NE Norcia (PG), on

  • 25-09-2019 23:16:49 (UTC)
  • 26-09-2019 01:16:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8130, 13.1160 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 3 4957 4957
Preci PG 10 724 5681
Castelsantangelo sul Nera MC 10 281 5962
Cascia PG 13 3217 9179
Visso MC 13 1107 10286
Ussita MC 15 444 10730
Arquata del Tronto AP 16 1178 11908
Cerreto di Spoleto PG 16 1075 12983
Accumoli RI 17 667 13650
Sellano PG 18 1079 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)
47 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)
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 0.9 2019-09-25
23:16:49		 42.8132 13.1158 10 2019-09-25
23:25:51		 Sala Sismica INGV-Roma 72775221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-25 23:16:49 ± 0.05
Latitude 42.8132 ± 0.0027
Longitude 13.1158 ± 0.0037
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 72775221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 360
Semi-minor axis of confidence ellipse (meter) 65
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 68
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 126
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.40559
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 13
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 72775221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-25 23:25:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CMPR.HHZ. 2019-09-25T23:18:12.61 3.0 undecidable manual Sn -0.17 0
IV.PTRJ.HNZ. 2019-09-25T23:17:47.30 3.0 undecidable manual Sg 3.71 0
GU.GRAM.HHZ. 2019-09-25T23:17:40.85 3.0 negative manual Pg 7.62 0
IV.LAV9.HNZ. 2019-09-25T23:17:28.47 3.0 undecidable manual S -0.1 0
IV.COLB.HHZ. 2019-09-25T23:17:25.88 3.0 negative manual Pn 1.36 0
IV.VIVA.HHZ. 2019-09-25T23:17:23.75 3.0 undecidable manual S -2.79 0
IV.PE3.EHZ. 2019-09-25T23:17:20.70 3.0 undecidable manual S -3.06 0
IV.TERO.HHZ. 2019-09-25T23:17:03.41 0.6 undecidable manual S 118 45.0216 50 -0.52 43
IV.MF5.EHZ. 2019-09-25T23:17:01.66 0.3 undecidable manual S 55 34.0437 50 0.67 62
IV.RM33.EHZ. 2019-09-25T23:17:01.01 0.3 undecidable manual S 167 34.6431 50 -0.16 71
IV.CSP1.EHZ. 2019-09-25T23:17:00.18 0.3 undecidable manual S 13 31.746 50 -0.2 71
IV.CESI.HHE. 2019-09-25T23:16:59.23 0.3 undecidable manual S 321 27.3504 50 0.02 74
IV.LNSS.HHZ. 2019-09-25T23:16:58.26 0.3 undecidable manual S 195 24.1536 112 0.09 74
IV.FDMO.HHZ. 2019-09-25T23:16:58.23 0.3 undecidable manual S 355 24.8529 111 -0.2 72
IV.MTRA.EHZ. 2019-09-25T23:16:57.99 0.3 undecidable manual S 105 23.6541 112 -0.04 74
IV.GAVE.EHZ. 2019-09-25T23:16:57.75 3.0 undecidable manual P 0
IV.TERO.HHZ. 2019-09-25T23:16:57.84 1.0 undecidable manual P 118 45.0216 50 0.16 23
IT.MTCL.HGE. 2019-09-25T23:16:57.47 0.3 undecidable manual S 335 22.1556 114 -0.09 74
IV.MMO1.EHZ. 2019-09-25T23:16:56.71 0.3 undecidable manual S 61 19.6692 116 -0.04 75
IV.RM33.EHZ. 2019-09-25T23:16:56.08 0.1 undecidable manual P 167 34.6431 50 -0.01 98
IV.MF5.EHZ. 2019-09-25T23:16:56.12 0.6 positive manual P 55 34.0437 50 0.14 48
IV.CSP1.EHZ. 2019-09-25T23:16:55.56 0.3 negative manual P 13 31.746 50 -0.07 73
IV.SMA1.EHZ. 2019-09-25T23:16:55.05 1.0 positive manual P 138 27.0507 110 0.15 24
IV.CESI.HHE. 2019-09-25T23:16:55.04 0.1 undecidable manual P 321 27.3504 50 0.08 98
IV.FDMO.HHZ. 2019-09-25T23:16:54.43 0.1 positive manual P 355 24.8529 111 -0.07 98
IV.MTRA.EHZ. 2019-09-25T23:16:54.20 0.1 undecidable manual P 105 23.6541 112 -0.08 98
IV.LNSS.HHZ. 2019-09-25T23:16:54.42 1.0 undecidable manual P 195 24.1536 112 0.06 25
IT.MTCL.HGE. 2019-09-25T23:16:53.99 0.1 undecidable manual P 335 22.1556 114 -0.01 100
IV.MMO1.EHZ. 2019-09-25T23:16:53.45 0.3 undecidable manual P 61 19.6692 116 -0.09 74
IV.NRCA.HNZ. 2019-09-25T23:16:52.58 0.6 undecidable manual S 357 2.2977 167 -0.04 51
IV.MC2.EHZ. 2019-09-25T23:16:52.55 1.0 undecidable manual P 29 12.3765 128 0.24 24
IV.NRCA.HNZ. 2019-09-25T23:16:51.39 0.1 negative manual P 357 2.2977 167 0.24 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.8 0.0000395 1.08 AML other m 2019-09-25T23:16:58.18
IV.FDMO.HHE. ML:0.7 0.00003225 0.42 AML other m 2019-09-25T23:16:58.52
IV.NRCA.HHE. ML:1.6 0.0006992526 0.0896 AML other m 2019-09-25T23:16:53.20
IV.NRCA.HHN. ML:1.8 0.00114249025 0.1408 AML other m 2019-09-25T23:16:52.70
IV.NRCA.HNE. ML:1.5 0.0006557326 0.1152 AML other m 2019-09-25T23:16:53.19
IV.NRCA.HNN. ML:1.8 0.0011033295 0.1408 AML other m 2019-09-25T23:16:52.70
IV.LNSS.HHE. ML:1.4 0.00017043035000000002 0.1024 AML other m 2019-09-25T23:16:58.68
IV.LNSS.HHN. ML:1.3 0.00013372345000000002 0.1408 AML other m 2019-09-25T23:16:58.41
IV.LNSS.HNE. ML:1.4 0.00017174024999999998 0.128 AML other m 2019-09-25T23:16:58.62
IV.LNSS.HNN. ML:1.4 0.00014909963 0.6272 AML other m 2019-09-25T23:16:59.01
IV.SMA1.EHE. ML:0.8 0.00003304733 0.2816 AML other m 2019-09-25T23:17:01.36
IV.CSP1.EHE. ML:0.9 0.000035069565 0.2432 AML other m 2019-09-25T23:17:00.93
IV.CSP1.EHN. ML:1.0 0.000041883602 0.1152 AML other m 2019-09-25T23:17:01.18
IV.RM33.EHE. ML:0.7 0.00001797041 0.1408 AML other m 2019-09-25T23:17:02.71
IV.RM33.EHN. ML:0.8 0.000023450840000000002 0.192 AML other m 2019-09-25T23:17:02.58
IV.TERO.HHE. ML:0.5 0.0000110742655 0.0896 AML other m 2019-09-25T23:17:04.89
IV.TERO.HHN. ML:0.7 0.000012707752499999999 0.1152 AML other m 2019-09-25T23:17:04.45
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