Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 31-10-2016 and time 07:20:47 (Italy) in region 3 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 2.0 earthquake occured in region: 3 km SE Castelsantangelo sul Nera (MC), on

  • 31-10-2016 06:20:47 (UTC)
  • 31-10-2016 07:20:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8800, 13.1760 at 9 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
Castelsantangelo sul Nera MC 3 281 281
Ussita MC 8 444 725
Visso MC 9 1107 1832
Preci PG 11 724 2556
Norcia PG 12 4957 7513
Montemonaco AP 13 604 8117
Bolognola MC 14 142 8259
Montegallo AP 14 523 8782
Montefortino FM 15 1178 9960
Arquata del Tronto AP 15 1178 11138
Acquacanina MC 17 121 11259
Fiastra MC 18 559 11818
Amandola FM 19 3629 15447
Fiordimonte MC 19 202 15649
Monte Cavallo MC 19 145 15794

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
50 Km NW of Teramo (54892 inhabitants)
56 Km NE of Terni (111501 inhabitants)
61 Km NW of L'Aquila (69753 inhabitants)
69 Km E of Perugia (166134 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
97 Km W of Pescara (121014 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 2.0 2016-10-31
06:20:47		 42.8795 13.176 9 2019-02-12
14:03:26		 Bollettino Sismico Italiano INGV 49813021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-31 06:20:47 ± 0.09
Latitude 42.8795 ± 0.0036
Longitude 13.1760 ± 0.0037
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 49813021

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 410
Semi-minor axis of confidence ellipse (meter) 230
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 158
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.02428
Epicentral distance of station farthest from the epicenter (degree) 0.45236
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 49813021
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-05-28 14:58:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2016-10-31T06:21:04.20 0.6 undecidable manual S 353 50.2164 50 0.06 46
IV.T1215.EHZ. 2016-10-31T06:20:57.40 0.6 undecidable manual S 251 26.4513 108 0.05 48
IV.GUMA.HHZ. 2016-10-31T06:20:56.83 0.1 undecidable manual S 32 24.0537 110 0.26 93
IV.CSP1.EHZ. 2016-10-31T06:20:56.20 0.6 undecidable manual S 6 23.6541 110 -0.23 47
IV.EL6.EHZ. 2016-10-31T06:20:56.90 0.3 undecidable manual P 353 50.2164 50 -0.29 66
XO.AM05.HNZ. 2016-10-31T06:20:54.58 0.3 undecidable manual S 53 17.9709 115 -0.04 74
IV.T1215.EHZ. 2016-10-31T06:20:53.27 0.3 undecidable manual P 251 26.4513 108 0 73
IV.FEMA.HNE. 2016-10-31T06:20:53.19 0.6 undecidable manual S 312 13.7751 122 -0.13 48
IV.T1216.EHZ. 2016-10-31T06:20:53.12 0.6 undecidable manual S 276 12.7761 124 0.07 49
IV.MMO1.EHZ. 2016-10-31T06:20:52.89 0.6 undecidable manual S 80 12.4764 124 -0.05 49
IV.GUMA.HHZ. 2016-10-31T06:20:52.90 0.1 undecidable manual P 32 24.0537 110 0.08 96
IV.CSP1.EHZ. 2016-10-31T06:20:52.49 0.1 undecidable manual P 6 23.6541 110 -0.25 93
IV.FEMA.HNE. 2016-10-31T06:20:51.23 0.3 undecidable manual P 312 13.7751 122 0.28 70
XO.AM05.HNZ. 2016-10-31T06:20:51.71 0.1 positive manual P 53 17.9709 115 0.02 99
IV.MMO1.EHZ. 2016-10-31T06:20:50.82 0.1 positive manual P 80 12.4764 124 0.09 98
IV.T1245.HHZ. 2016-10-31T06:20:50.61 0.1 undecidable manual S 159 2.6973 162 -0.2 97
IV.T1216.EHZ. 2016-10-31T06:20:50.90 0.3 undecidable manual P 276 12.7761 124 0.11 73
IV.T1245.HHZ. 2016-10-31T06:20:49.57 0.1 positive manual P 159 2.6973 162 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1245.HHE. ML:0.0 0.011775774999999999 0.16 AML other m 2016-10-31T06:20:51.20
IV.T1245.HHN. ML:0.0 0.014438280000000001 0.2592 AML other m 2016-10-31T06:20:51.25
IV.T1245.HNE. ML:0.0 0.012029572 0.1792 AML other m 2016-10-31T06:20:51.20
IV.T1245.HNN. ML:0.0 0.014875605 0.2496 AML other m 2016-10-31T06:20:51.25
IV.T1216.EHE. ML:2.1 0.0014889080000000002 0.352 AML other m 2016-10-31T06:20:53.76
IV.T1216.EHN. ML:2.2 0.001697391 0.24 AML other m 2016-10-31T06:20:53.24
IV.CSP1.EHN. ML:2.0 0.000653727255 0.3424 AML other m 2016-10-31T06:20:57.66
IV.CSP1.EHE. ML:1.9 0.0005942401599999999 0.2016 AML other m 2016-10-31T06:20:56.55
IV.GUMA.HNE. ML:2.4 0.001604638 0.24 AML other m 2016-10-31T06:20:58.45
IV.GUMA.HNN. ML:2.2 0.0010976210499999998 0.3392 AML other m 2016-10-31T06:20:57.76
IV.GUMA.HHE. ML:2.4 0.0014861685 0.2592 AML other m 2016-10-31T06:20:58.44
IV.GUMA.HHN. ML:2.4 0.0015516964999999997 0.2208 AML other m 2016-10-31T06:20:57.16
IV.T1215.HNN. ML:1.4 0.00014042295 0.224 AML other m 2016-10-31T06:20:57.73
IV.T1215.EHE. ML:1.5 0.0001935895 0.208 AML other m 2016-10-31T06:20:57.67
IV.T1215.EHN. ML:1.4 0.000144218495 0.176 AML other m 2016-10-31T06:20:57.64
IV.T1215.HNE. ML:1.5 0.000195283645 0.208 AML other m 2016-10-31T06:20:57.67
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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