Earthquake with magnitude of Md 0.4 on date 28-10-2016 and time 08:23:09 (Italy) in region 4 km SW Castelsantangelo sul Nera (MC)

A magnitude Md 0.4 earthquake occured in region: 4 km SW Castelsantangelo sul Nera (MC), on

  • 28-10-2016 06:23:09 (UTC)
  • 28-10-2016 08:23:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.87, 13.12 at 0 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.

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 4 281 281
Preci PG 7 724 1005
Visso MC 8 1107 2112
Norcia PG 9 4957 7069
Ussita MC 9 444 7513
Sellano PG 16 1079 8592
Bolognola MC 17 142 8734
Montemonaco AP 17 604 9338
Monte Cavallo MC 17 145 9483
Montegallo AP 17 523 10006
Cerreto di Spoleto PG 18 1075 11081
Arquata del Tronto AP 18 1178 12259
Acquacanina MC 19 121 12380
Cascia PG 19 3217 15597
Fiastra MC 19 559 16156
Fiordimonte MC 19 202 16358
Montefortino FM 20 1178 17536

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
52 Km NE of Terni (111501 inhabitants)
53 Km W of Teramo (54892 inhabitants)
62 Km NW of L'Aquila (69753 inhabitants)
65 Km E of Perugia (166134 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
93 Km W of Montesilvano (53738 inhabitants)
97 Km NE of Viterbo (67173 inhabitants)
100 Km W of Pescara (121014 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 Md 0.4 2016-10-28
06:23:09
42.87 13.12 0 2016-10-28
06:42:13
Sala Sismica INGV-Roma 30785931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-28 06:23:09 ± 0.25
Latitude 42.87 ± 0.01
Longitude 13.12 ± 0.02
Depth (km) 0 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 30785931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1500
Semi-minor axis of confidence ellipse (meter) 1019
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 283
Circular confidence region, given by single value of horizontal uncertainty (meter) 1500
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 160
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.49
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.25001
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 5
Magnitude information

Md:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 3
Type of magnitude Md
Reference to an origin 30785931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-28 06:42:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ARCI.HHZ. 2016-10-28T06:23:31.23 3.0 undecidable manual P -1 0
IV.GUMA.HHZ. 2016-10-28T06:23:18.95 0.6 undecidable manual S 38 0.25 91 -0.36 48
XO.AM05.EHZ. 2016-10-28T06:23:17.47 0.6 undecidable manual S 57 0.2014 91 0.03 51
IV.CESI.HHZ. 2016-10-28T06:23:16.99 3.0 undecidable manual S 0.27 0
IV.GUMA.HHZ. 2016-10-28T06:23:15.99 0.1 undecidable manual P 38 0.25 91 0.75 84
IV.FDMO.HHZ. 2016-10-28T06:23:15.19 0.6 undecidable manual S 351 0.1718 91 -1.11 36
XO.AM05.EHZ. 2016-10-28T06:23:14.83 0.6 positive manual P 57 0.2014 91 0.67 44
IV.FDMO.HHZ. 2016-10-28T06:23:13.70 0.1 negative manual P 351 0.1718 91 0.19 100
IV.NRCA.HHZ. 2016-10-28T06:23:11.26 0.6 undecidable manual S 191 0.0342 95 0.25 51
IV.T1245.HHZ. 2016-10-28T06:23:11.50 0.6 undecidable manual S 102 0.0486 93 -0.07 53
IV.MMO1.EHZ. 2016-10-28T06:23:11.90 3.0 positive manual P -1.64 0
IV.T1245.HHZ. 2016-10-28T06:23:10.26 0.1 negative manual P 102 0.0486 93 -0.51 95
IV.MC2.EHZ. 2016-10-28T06:23:10.47 3.0 positive manual P -0.94 0
IV.NRCA.HHZ. 2016-10-28T06:23:10.24 0.3 negative manual P 191 0.0342 95 -0.21 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHZ. Md:0.4 4 END duration s
IV.T1245.HHZ. Md:0.2 3 END duration s
IV.FDMO.HHZ. Md:0.6 4 END duration s
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download