Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 27-10-2016 and time 00:09:38 (UTC) in region 3 km S Castelsantangelo sul Nera (MC)

A magnitude ML 1.8 earthquake occured in region: 3 km S Castelsantangelo sul Nera (MC), on

  • 27-10-2016 00:09:38 (UTC)
  • 27-10-2016 02:09:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8650, 13.1550 at 8 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 9 444 725
Visso MC 9 1107 1832
Norcia PG 9 4957 6789
Preci PG 10 724 7513
Montemonaco AP 15 604 8117
Montegallo AP 15 523 8640
Arquata del Tronto AP 16 1178 9818
Bolognola MC 16 142 9960
Montefortino FM 18 1178 11138
Acquacanina MC 19 121 11259
Sellano PG 19 1079 12338
Monte Cavallo MC 19 145 12483
Fiastra MC 19 559 13042
Cascia PG 20 3217 16259
Fiordimonte MC 20 202 16461

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
50 Km W of Teramo (54892 inhabitants)
54 Km NE of Terni (111501 inhabitants)
61 Km NW of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
97 Km W of Pescara (121014 inhabitants)
99 Km NE of Viterbo (67173 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 1.8 2016-10-27
00:09:38		 42.8653 13.1552 8 2019-02-12
14:01:23		 Bollettino Sismico Italiano INGV 45201941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-27 00:09:38 ± 0.19
Latitude 42.8653 ± 0.0081
Longitude 13.1552 ± 0.0135
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 45201941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1215
Semi-minor axis of confidence ellipse (meter) 604
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 308
Circular confidence region, given by single value of horizontal uncertainty (meter) 1210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 190
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.43617
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 45201941
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-05-12 13:25:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARCI.HHZ. 2016-10-27T00:09:51.19 3.0 undecidable manual Pg 2.91 0
IV.LNSS.HHZ. 2016-10-27T00:09:49.96 1.0 undecidable manual S 198 30.5472 105 0.09 24
IV.T1247.HHZ. 2016-10-27T00:09:47.95 0.3 undecidable manual P 166 48.4182 50 -0.25 66
IV.TERO.HHZ. 2016-10-27T00:09:47.40 0.3 undecidable manual P 126 45.4212 50 -0.33 65
IV.LNSS.HHZ. 2016-10-27T00:09:45.25 0.3 undecidable manual P 198 30.5472 105 0.01 72
IV.T1243.HHZ. 2016-10-27T00:09:45.04 0.6 undecidable manual P 128 30.3474 105 -0.15 47
IV.T1299.HNN. 2016-10-27T00:09:45.11 0.6 undecidable manual P 158 27.6501 106 0.44 44
IV.MMO1.EHN. 2016-10-27T00:09:44.76 0.3 undecidable manual S 75 14.4744 119 0.14 72
IV.T1204.EHZ. 2016-10-27T00:09:44.19 0.6 undecidable manual P 148 24.753 108 0.07 48
IV.T1201.HNN. 2016-10-27T00:09:44.59 0.6 undecidable manual P 161 24.3534 108 0.55 43
IV.FSSB.HHZ. 2016-10-27T00:09:43.99 3.0 undecidable manual S 0.44 0
IV.MC2.EHZ. 2016-10-27T00:09:42.33 0.3 undecidable manual S 28 5.7942 144 0.02 75
IV.MMO1.EHN. 2016-10-27T00:09:42.37 0.3 undecidable manual P 75 14.4744 119 0.16 72
IV.T1245.HHZ. 2016-10-27T00:09:41.42 0.1 undecidable manual S 110 2.7972 160 -0.41 92
IV.ATVO.HHZ. 2016-10-27T00:09:41.99 3.0 undecidable manual S -0.95 0
IV.MC2.EHZ. 2016-10-27T00:09:40.98 0.3 undecidable manual P 28 5.7942 144 0.11 73
IV.T1245.HHZ. 2016-10-27T00:09:40.62 0.1 positive manual P 110 2.7972 160 0.03 100
IV.ATFO.HHZ. 2016-10-27T00:09:39.99 3.0 undecidable manual S 0.12 0
IV.ATCC.EHZ. 2016-10-27T00:09:37.38 3.0 negative manual P 1.5 0
IV.EL6.EHZ. 2016-10-27T00:09:35.53 3.0 positive manual P -0.2 0
IV.SNTG.HHZ. 2016-10-27T00:09:34.90 3.0 positive manual P -0.14 0
IV.ARVD.HHZ. 2016-10-27T00:09:33.81 3.0 negative manual P -0.97 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHE. ML:1.3 0.000031987395000000004 0.18 AML other m 2016-10-27T00:09:39.87
IV.ARVD.HHN. ML:1.4 0.00004082111 0.16 AML other m 2016-10-27T00:09:39.85
IV.ATCC.EHE. ML:2.7 0.0011101115 0.24 AML other m 2016-10-27T00:09:44.81
IV.ATCC.EHN. ML:2.5 0.0007906739 0.3 AML other m 2016-10-27T00:09:44.69
IV.EL6.EHN. ML:2.4 0.0006031344999999999 0.36 AML other m 2016-10-27T00:09:43.57
IV.EL6.EHE. ML:2.3 0.0005597342000000001 0.22 AML other m 2016-10-27T00:09:42.60
IV.LNSS.HHE. ML:1.9 0.00037854975000000004 0.18 AML other m 2016-10-27T00:09:51.20
IV.LNSS.HHN. ML:1.9 0.00039152625000000004 0.18 AML other m 2016-10-27T00:09:50.51
IV.SNTG.HNN. ML:2.0 0.00032133055 2.62 AML other m 2016-10-27T00:09:41.98
IV.SNTG.HNE. ML:2.0 0.00026626915 0.14 AML other m 2016-10-27T00:09:40.65
IV.SNTG.HHN. ML:2.0 0.00026135545 0.16 AML other m 2016-10-27T00:09:40.66
IV.SNTG.HHE. ML:1.9 0.0002508436 0.14 AML other m 2016-10-27T00:09:40.71
IV.T1204.EHN. ML:1.5 0.00018120099999999995 0.22 AML other m 2016-10-27T00:09:44.81
IV.T1204.EHE. ML:1.8 0.00035392499999999994 1.74 AML other m 2016-10-27T00:09:46.55
IV.T1245.HNE. ML:0.0 0.0097023 0.14 AML other m 2016-10-27T00:09:42.23
IV.T1245.HNN. ML:0.0 0.0070313415 0.12 AML other m 2016-10-27T00:09:41.69
IV.T1245.HHE. ML:0.0 0.0094024315 0.14 AML other m 2016-10-27T00:09:42.23
IV.T1245.HHN. ML:0.0 0.00747411 0.12 AML other m 2016-10-27T00:09:41.70
IV.T1247.HHE. ML:1.7 0.00012555355 0.24 AML other m 2016-10-27T00:09:58.30
IV.T1247.HHN. ML:1.8 0.00019208789999999997 0.22 AML other m 2016-10-27T00:09:55.33
IV.TERO.HHE. ML:1.6 0.0001233133 0.58 AML other m 2016-10-27T00:09:53.52
IV.TERO.HHN. ML:1.6 0.00011938035 0.56 AML other m 2016-10-27T00:10:02.46
IV.TERO.HNN. ML:1.6 0.000116269237 0.68 AML other m 2016-10-27T00:09:51.43
IV.TERO.HNE. ML:1.6 0.00012022161500000001 0.58 AML other m 2016-10-27T00:09:53.52
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