Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 31-10-2016 and time 07:54:17 (UTC) in region 2 km NE Castelsantangelo sul Nera (MC)

A magnitude ML 2.0 earthquake occured in region: 2 km NE Castelsantangelo sul Nera (MC), on

  • 31-10-2016 07:54:17 (UTC)
  • 31-10-2016 08:54:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9100, 13.1610 at 7 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 2 281 281
Ussita MC 4 444 725
Visso MC 6 1107 1832
Preci PG 11 724 2556
Bolognola MC 11 142 2698
Acquacanina MC 14 121 2819
Montemonaco AP 14 604 3423
Fiastra MC 14 559 3982
Norcia PG 14 4957 8939
Montefortino FM 15 1178 10117
Fiordimonte MC 15 202 10319
Montegallo AP 16 523 10842
Monte Cavallo MC 16 145 10987
Pieve Torina MC 18 1458 12445
Amandola FM 18 3629 16074
Pievebovigliana MC 18 866 16940
Sarnano MC 18 3264 20204
Arquata del Tronto AP 19 1178 21382
Sellano PG 19 1079 22461

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
52 Km NW of Teramo (54892 inhabitants)
57 Km NE of Terni (111501 inhabitants)
65 Km NW of L'Aquila (69753 inhabitants)
67 Km E of Perugia (166134 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
99 Km NW 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
07:54:17		 42.9103 13.1612 7 2019-02-12
14:03:36		 Bollettino Sismico Italiano INGV 53839521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-31 07:54:17 ± 0.11
Latitude 42.9103 ± 0.0027
Longitude 13.1612 ± 0.0025
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 53839521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 279
Semi-minor axis of confidence ellipse (meter) 91
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 2
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.05756
Epicentral distance of station farthest from the epicenter (degree) 0.20505
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 53839521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-05-29 17:00:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1241.HNN. 2016-10-31T07:54:26.20 0.3 undecidable manual S 105 22.755 107 0.05 73
XO.AM05.HNZ. 2016-10-31T07:54:24.54 0.3 undecidable manual S 64 17.2716 112 0.19 72
IV.MMO1.EHZ. 2016-10-31T07:54:23.11 0.3 undecidable manual S 95 13.4754 118 -0.06 74
IV.T1241.HNN. 2016-10-31T07:54:22.65 0.3 undecidable manual P 105 22.755 107 0 74
IV.T1256.HHZ. 2016-10-31T07:54:22.58 0.3 undecidable manual S 26 11.877 121 -0.1 74
IV.T1216.EHZ. 2016-10-31T07:54:22.62 0.3 undecidable manual S 259 11.7771 121 -0.02 75
IV.FEMA.HNZ. 2016-10-31T07:54:22.40 0.3 undecidable manual S 302 10.6782 123 0.06 74
IV.T1245.HHZ. 2016-10-31T07:54:21.22 0.3 undecidable manual S 160 6.3936 138 0.04 75
XO.AM05.HNZ. 2016-10-31T07:54:21.76 0.3 undecidable manual P 64 17.2716 112 0.14 72
IV.T1216.EHZ. 2016-10-31T07:54:20.58 0.1 positive manual P 259 11.7771 121 -0.05 99
IV.FEMA.HNZ. 2016-10-31T07:54:20.66 0.3 undecidable manual P 302 10.6782 123 0.21 72
IV.MMO1.EHZ. 2016-10-31T07:54:20.86 0.3 undecidable manual P 95 13.4754 118 -0.08 74
IV.T1256.HHZ. 2016-10-31T07:54:20.44 0.1 positive manual P 26 11.877 121 -0.21 96
IV.T1245.HHZ. 2016-10-31T07:54:19.73 0.1 negative manual P 160 6.3936 138 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNN. ML:2.1 0.00170391115 0.32 AML other m 2016-10-31T07:54:22.69
IV.T1216.EHN. ML:2.2 0.002006469 0.224 AML other m 2016-10-31T07:54:23.02
IV.T1256.HHE. ML:1.8 0.00088609555 0.1984 AML other m 2016-10-31T07:54:23.27
IV.T1256.HNE. ML:1.8 0.0008404015 0.1984 AML other m 2016-10-31T07:54:23.27
IV.T1256.HNN. ML:1.8 0.0008009807499999999 0.288 AML other m 2016-10-31T07:54:23.03
IV.T1256.HHN. ML:1.7 0.00069373935 0.3008 AML other m 2016-10-31T07:54:23.03
IV.T1216.EHE. ML:2.2 0.0018947376999999999 0.3008 AML other m 2016-10-31T07:54:23.52
IV.FEMA.HNE. ML:2.1 0.0017065362500000001 0.2368 AML other m 2016-10-31T07:54:23.74
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
Waveforms Seismic signals in miniseed + resp format Download