Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 28-10-2016 and time 07:53:08 (UTC) in region 4 km S Monte Cavallo (MC)

A magnitude ML 1.8 earthquake occured in region: 4 km S Monte Cavallo (MC), on

  • 28-10-2016 07:53:08 (UTC)
  • 28-10-2016 09:53:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9620, 13.0140 at 11 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
Monte Cavallo MC 4 145 145
Visso MC 7 1107 1252
Preci PG 9 724 1976
Pieve Torina MC 10 1458 3434
Ussita MC 10 444 3878
Fiordimonte MC 11 202 4080
Sellano PG 11 1079 5159
Pievebovigliana MC 13 866 6025
Serravalle di Chienti MC 13 1070 7095
Castelsantangelo sul Nera MC 14 281 7376
Muccia MC 14 915 8291
Fiastra MC 14 559 8850
Acquacanina MC 15 121 8971
Cerreto di Spoleto PG 18 1075 10046
Bolognola MC 18 142 10188
Norcia PG 20 4957 15145
Camerino MC 20 6974 22119

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Foligno (57155 inhabitants)
53 Km E of Perugia (166134 inhabitants)
54 Km NE of Terni (111501 inhabitants)
66 Km NW of Teramo (54892 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
96 Km NE of Viterbo (67173 inhabitants)
98 Km S of Fano (60888 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 1.8 2016-10-28
07:53:08		 42.9622 13.0138 11 2016-10-28
08:08:08		 Sala Sismica INGV-Roma 30792521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-28 07:53:08 ± 0.13
Latitude 42.9622 ± 0.0081
Longitude 13.0138 ± 0.0160
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 30792521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1502
Semi-minor axis of confidence ellipse (meter) 566
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 120
Circular confidence region, given by single value of horizontal uncertainty (meter) 1500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 182
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25721
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 30792521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-28 08:08:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1217.EHZ. 2016-10-28T07:53:18.15 0.1 undecidable manual S 194 28.5492 90 -0.13 95
IV.MCIV.HHZ. 2016-10-28T07:53:18.82 3.0 undecidable manual P 0 0
IV.T1215.EHZ. 2016-10-28T07:53:16.90 0.3 undecidable manual S 214 21.3675 90 0.54 68
IV.MC2.EHZ. 2016-10-28T07:53:15.29 0.3 undecidable manual S 112 15.2736 91 0.55 65
IV.CSP1.EHZ. 2016-10-28T07:53:15.99 0.1 undecidable manual S 47 21.1677 90 -0.31 93
IV.FDMO.HHZ. 2016-10-28T07:53:13.60 0.1 undecidable manual S 36 10.1787 119 0.18 97
IV.T1217.EHZ. 2016-10-28T07:53:13.65 0.3 undecidable manual P 194 28.5492 90 -0.37 68
IV.T1215.EHZ. 2016-10-28T07:53:13.24 0.3 undecidable manual P 214 21.3675 90 0.33 71
IV.MC2.EHZ. 2016-10-28T07:53:12.14 0.3 undecidable manual P 112 15.2736 91 0.16 73
IV.CSP1.EHZ. 2016-10-28T07:53:12.72 0.1 undecidable manual P 47 21.1677 90 -0.16 96
IV.T1216.EHZ. 2016-10-28T07:53:12.36 0.3 undecidable manual S 177 7.9809 131 -0.58 69
IV.FEMA.HNE. 2016-10-28T07:53:11.95 0.1 undecidable manual S 90 2.8971 161 -0.23 100
IV.FDMO.HHZ. 2016-10-28T07:53:11.43 0.1 undecidable manual P 36 10.1787 119 0.21 97
IV.FEMA.HNE. 2016-10-28T07:53:10.64 0.1 undecidable manual P 90 2.8971 161 0.14 100
IV.T1216.EHZ. 2016-10-28T07:53:10.80 0.1 undecidable manual P 177 7.9809 131 -0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1216.EHN. ML:0.0 0.00030136725 0.3072 AML other m 2016-10-28T07:53:12.59
IV.T1216.EHE. ML:0.0 0.00022591434999999998 0.224 AML other m 2016-10-28T07:53:12.55
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