Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 28-10-2016 and time 23:37:47 (UTC) in region 4 km N Norcia (PG)

A magnitude ML 1.5 earthquake occured in region: 4 km N Norcia (PG), on

  • 28-10-2016 23:37:47 (UTC)
  • 29-10-2016 01:37:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8310, 13.0910 at 12 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
Preci PG 7 724 5681
Castelsantangelo sul Nera MC 9 281 5962
Visso MC 11 1107 7069
Ussita MC 13 444 7513
Cascia PG 14 3217 10730
Cerreto di Spoleto PG 14 1075 11805
Sellano PG 15 1079 12884
Arquata del Tronto AP 18 1178 14062
Poggiodomo PG 18 117 14179
Monte Cavallo MC 20 145 14324
Accumoli RI 20 667 14991
Vallo di Nera PG 20 364 15355
Montegallo AP 20 523 15878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
54 Km W of Teramo (54892 inhabitants)
59 Km NW of L'Aquila (69753 inhabitants)
65 Km E of Perugia (166134 inhabitants)
93 Km NE of Viterbo (67173 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
94 Km SW of Ancona (100861 inhabitants)
97 Km NE of Guidonia Montecelio (88673 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
Reviewed
Rev100 		ML 1.5 2016-10-28
23:37:47		 42.8313 13.0908 13 2016-10-28
23:46:58		 Sala Sismica INGV-Roma 30868201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-28 23:37:47 ± 0.09
Latitude 42.8313 ± 0.0036
Longitude 13.0908 ± 0.0049
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 30868201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 469
Semi-minor axis of confidence ellipse (meter) 49
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 126
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 15
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) 0.22753
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 30868201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-28 23:46:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1211.EHZ. 2016-10-28T23:38:00.99 3.0 undecidable manual S 0.05 0
IV.CING.HHZ. 2016-10-28T23:37:58.15 3.0 negative manual P -0.18 0
IV.EL6.EHZ. 2016-10-28T23:37:57.18 3.0 negative manual P -0.2 0
IV.CESI.HHZ. 2016-10-28T23:37:56.10 0.6 undecidable manual S 322 24.4533 97 -0.08 48
IV.SNTG.HHZ. 2016-10-28T23:37:56.23 3.0 positive manual P -0.04 0
IV.TERO.HHZ. 2016-10-28T23:37:55.80 3.0 negative manual P -0.4 0
IV.T1215.EHZ. 2016-10-28T23:37:54.50 0.6 undecidable manual S 260 18.3705 104 -0.08 48
IV.RM33.EHZ. 2016-10-28T23:37:54.30 3.0 positive manual P -0.12 0
IV.T1217.EHZ. 2016-10-28T23:37:54.68 0.6 undecidable manual S 224 18.5703 103 0.05 49
IV.MMO1.EHZ. 2016-10-28T23:37:54.89 0.6 undecidable manual S 68 20.5683 101 -0.27 47
IV.SMA1.EHZ. 2016-10-28T23:37:53.25 3.0 positive manual P -0.01 0
IV.T1241.EHZ. 2016-10-28T23:37:53.22 3.0 positive manual P 0.29 0
IV.T1243.HHZ. 2016-10-28T23:37:53.41 3.0 positive manual P -0.31 0
IV.MC2.EHZ. 2016-10-28T23:37:53.09 0.6 undecidable manual S 42 11.877 122 0.11 49
IV.LNSS.HHZ. 2016-10-28T23:37:52.63 3.0 negative manual P 0.05 0
IV.FDMO.HHZ. 2016-10-28T23:37:52.10 0.1 positive manual P 359 22.755 98 0 98
IV.T1204.EHZ. 2016-10-28T23:37:52.07 0.6 undecidable manual P 133 25.2525 97 -0.41 45
XO.AM05.EHZ. 2016-10-28T23:37:52.76 3.0 positive manual P 0.01 0
IV.CESI.HHZ. 2016-10-28T23:37:52.45 0.1 negative manual P 322 24.4533 97 0.08 96
IV.MMO1.EHZ. 2016-10-28T23:37:51.70 1.0 undecidable manual P 68 20.5683 101 -0.08 24
IV.T1216.EHZ. 2016-10-28T23:37:51.99 0.6 undecidable manual S 318 8.7801 134 -0.33 46
IV.T1215.EHZ. 2016-10-28T23:37:51.54 1.0 undecidable manual P 260 18.3705 104 0.09 24
IV.T1217.EHZ. 2016-10-28T23:37:51.65 0.6 undecidable manual P 224 18.5703 103 0.18 48
IV.T1245.HHZ. 2016-10-28T23:37:50.21 0.1 positive manual P 71 8.3805 136 0.11 99
IV.MC2.EHZ. 2016-10-28T23:37:50.68 0.1 positive manual P 42 11.877 122 0.16 97
IV.T1216.EHZ. 2016-10-28T23:37:50.20 0.1 undecidable manual P 318 8.7801 134 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.3 0.00010970000000000001 0.44 AML other m 2016-10-28T23:37:56.66
IV.CESI.HHN. ML:1.4 0.0001385 0.24 AML other m 2016-10-28T23:38:45.33
IV.FDMO.HHE. ML:1.6 0.0002455 0.44 AML other m 2016-10-28T23:38:44.27
IV.FDMO.HHN. ML:1.5 0.00020150000000000002 0.24 AML other m 2016-10-28T23:38:55.87
IV.LNSS.HHN. ML:1.5 0.0001815 0.9 AML other m 2016-10-28T23:37:57.68
IV.LNSS.HHE. ML:1.4 0.00012785 0.14 AML other m 2016-10-28T23:37:58.11
IV.SMA1.EHE. ML:2.0 0.00042449999999999996 0.16 AML other m 2016-10-28T23:38:35.30
IV.SMA1.EHN. ML:1.4 0.000127 0.32 AML other m 2016-10-28T23:38:35.12
IV.T1241.EHE. ML:1.6 0.0002241 0.22 AML other m 2016-10-28T23:38:49.51
IV.T1241.EHN. ML:1.3 0.000107 1.5 AML other m 2016-10-28T23:37:56.73
IV.T1245.HHN. ML:2.2 0.0018700000000000001 1.18 AML other m 2016-10-28T23:38:43.71
IV.T1245.HHE. ML:2.2 0.00207 0.68 AML other m 2016-10-28T23:38:43.60
IV.TERO.HHE. ML:1.4 0.0000756 1.5 AML other m 2016-10-28T23:38:02.27
IV.TERO.HHN. ML:1.4 0.0000761 0.96 AML other m 2016-10-28T23:38:56.02
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