Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 27-10-2016 and time 02:51:32 (UTC) in region 3 km SE Castelsantangelo sul Nera (MC)

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

  • 27-10-2016 02:51:32 (UTC)
  • 27-10-2016 04:51:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8790, 13.1820 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 8 444 725
Visso MC 10 1107 1832
Preci PG 12 724 2556
Norcia PG 12 4957 7513
Montemonaco AP 12 604 8117
Montegallo AP 13 523 8640
Bolognola MC 13 142 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 18 3629 15447
Fiordimonte MC 19 202 15649
Monte Cavallo MC 20 145 15794
Sarnano MC 20 3264 19058

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
49 Km NW of Teramo (54892 inhabitants)
56 Km NE of Terni (111501 inhabitants)
61 Km N 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)
96 Km W of Pescara (121014 inhabitants)
100 Km NW of Chieti (51815 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
02:51:32		 42.8793 13.1823 8 2019-02-12
14:01:33		 Bollettino Sismico Italiano INGV 57120241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-27 02:51:32 ± 0.08
Latitude 42.8793 ± 0.0045
Longitude 13.1823 ± 0.0061
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 57120241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 512
Semi-minor axis of confidence ellipse (meter) 140
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 54
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.02338
Epicentral distance of station farthest from the epicenter (degree) 0.45326
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 57120241
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-05-22 11:00:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2016-10-27T02:51:49.62 0.6 undecidable manual S 353 50.3163 50 0.17 46
IV.TERO.HHZ. 2016-10-27T02:51:47.72 0.6 undecidable manual S 130 44.622 50 -0.2 47
IV.LNSS.HHZ. 2016-10-27T02:51:44.94 0.6 undecidable manual S 201 32.745 103 0.43 45
IV.T1243.HHZ. 2016-10-27T02:51:43.71 0.6 undecidable manual S 133 29.6481 105 0.25 47
IV.CESI.HHZ. 2016-10-27T02:51:42.61 0.6 undecidable manual S 302 26.5512 106 0.2 48
IV.T1204.EHZ. 2016-10-27T02:51:42.54 0.6 undecidable manual S 154 25.0527 107 0.61 43
IV.GUMA.HHZ. 2016-10-27T02:51:42.21 0.6 undecidable manual S 31 23.8539 108 0.69 42
IV.EL6.EHZ. 2016-10-27T02:51:41.98 0.3 undecidable manual P 353 50.3163 50 -0.44 66
IV.TERO.HHZ. 2016-10-27T02:51:41.06 0.3 undecidable manual P 130 44.622 50 -0.48 66
IV.T1241.EHZ. 2016-10-27T02:51:40.58 0.6 undecidable manual S 97 20.3685 111 0.19 49
IV.RM33.EHZ. 2016-10-27T02:51:40.94 0.3 undecidable manual P 176 41.1255 50 -0.07 72
IV.LNSS.HHZ. 2016-10-27T02:51:39.79 0.3 undecidable manual P 201 32.745 103 0.22 71
XO.AM05.HNZ. 2016-10-27T02:51:39.87 0.6 undecidable manual S 52 17.5713 114 0.37 47
IV.T1216.EHZ. 2016-10-27T02:51:38.65 0.6 undecidable manual S 275 13.3755 120 0.47 46
IV.CESI.HHZ. 2016-10-27T02:51:38.25 0.3 undecidable manual P 302 26.5512 106 -0.11 74
IV.T1243.HHZ. 2016-10-27T02:51:38.96 0.3 undecidable manual P 133 29.6481 105 0 75
IV.GUMA.HHZ. 2016-10-27T02:51:37.88 0.3 undecidable manual P 31 23.8539 108 0.04 75
IV.T1241.EHZ. 2016-10-27T02:51:37.31 0.3 undecidable manual P 97 20.3685 111 0.12 74
IV.T1204.EHZ. 2016-10-27T02:51:37.75 0.3 undecidable manual P 154 25.0527 107 -0.33 70
XO.AM05.HNZ. 2016-10-27T02:51:36.86 0.1 undecidable manual P 52 17.5713 114 0.18 98
IV.T1216.EHZ. 2016-10-27T02:51:36.15 0.3 undecidable manual P 275 13.3755 120 0.24 73
IV.MC2.EHZ. 2016-10-27T02:51:35.05 0.6 undecidable manual S 9 3.5964 155 -0.74 43
IV.T1245.HHZ. 2016-10-27T02:51:35.05 0.6 undecidable manual S 170 2.5974 162 -0.61 45
IV.T1245.HHZ. 2016-10-27T02:51:34.25 0.1 undecidable manual P 170 2.5974 162 -0.21 100
IV.MC2.EHZ. 2016-10-27T02:51:34.24 0.1 positive manual P 9 3.5964 155 -0.3 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1245.HHE. ML:0.0 0.008328585000000001 0.2208 AML other m 2016-10-27T02:51:35.67
IV.T1245.HHN. ML:0.0 0.01309488 0.3808 AML other m 2016-10-27T02:51:36.31
IV.T1241.EHN. ML:1.8 0.00048302670000000003 0.28 AML other m 2016-10-27T02:51:42.24
IV.T1241.HNN. ML:1.3 0.0001644813 0.6592 AML other m 2016-10-27T02:51:40.52
IV.T1241.EHE. ML:1.8 0.0004575458 0.3792 AML other m 2016-10-27T02:51:44.18
IV.T1204.EHN. ML:1.4 0.00016882195000000004 0.28 AML other m 2016-10-27T02:51:44.80
IV.T1204.EHE. ML:1.6 0.00025092984999999996 0.2992 AML other m 2016-10-27T02:51:44.41
IV.GUMA.HHN. ML:2.2 0.0010226823000000001 0.3184 AML other m 2016-10-27T02:51:43.10
IV.GUMA.HNN. ML:2.1 0.0007868548 0.6112 AML other m 2016-10-27T02:51:42.36
IV.GUMA.HNE. ML:2.0 0.0006933637 0.4496 AML other m 2016-10-27T02:51:43.32
IV.GUMA.HHE. ML:2.2 0.00094485215 0.24 AML other m 2016-10-27T02:51:42.47
IV.CESI.HHE. ML:1.7 0.00029279564999999994 0.2816 AML other m 2016-10-27T02:51:43.12
IV.CESI.HHN. ML:1.9 0.00044074165 0.3392 AML other m 2016-10-27T02:51:42.95
IV.LNSS.HHE. ML:1.9 0.00035658445 0.2816 AML other m 2016-10-27T02:51:45.49
IV.LNSS.HHN. ML:1.9 0.0003349578 0.16 AML other m 2016-10-27T02:51:45.23
IV.RM33.HNN. ML:1.7 0.00016062700000000002 0.4 AML other m 2016-10-27T02:51:49.45
IV.RM33.EHE. ML:1.6 0.0001388244 0.36 AML other m 2016-10-27T02:51:48.02
IV.RM33.EHN. ML:1.5 0.00011544382 0.3392 AML other m 2016-10-27T02:51:48.20
IV.TERO.HNE. ML:1.6 0.0001325290985 0.24 AML other m 2016-10-27T02:51:49.20
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