Earthquake with magnitude of ML 0.4 on date 23-09-2016 and time 13:27:51 (Italy) in region 7 km E Castelsantangelo sul Nera (MC)

A magnitude ML 0.4 earthquake occured in region: 7 km E Castelsantangelo sul Nera (MC), on

  • 23-09-2016 11:27:51 (UTC)
  • 23-09-2016 13:27:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9120, 13.2340 at 7 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 7 281 281
Montemonaco AP 8 604 885
Ussita MC 9 444 1329
Bolognola MC 9 142 1471
Montefortino FM 10 1178 2649
Montegallo AP 11 523 3172
Visso MC 12 1107 4279
Amandola FM 13 3629 7908
Acquacanina MC 14 121 8029
Sarnano MC 15 3264 11293
Fiastra MC 15 559 11852
Comunanza AP 16 3166 15018
Preci PG 16 724 15742
Arquata del Tronto AP 16 1178 16920
Norcia PG 18 4957 21877
Fiordimonte MC 18 202 22079
Palmiano AP 18 196 22275
Gualdo MC 19 815 23090

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km E of Foligno (57155 inhabitants)
48 Km NW of Teramo (54892 inhabitants)
62 Km NE of Terni (111501 inhabitants)
64 Km N of L'Aquila (69753 inhabitants)
72 Km E of Perugia (166134 inhabitants)
82 Km S of Ancona (100861 inhabitants)
87 Km NW of Montesilvano (53738 inhabitants)
94 Km NW of Pescara (121014 inhabitants)
99 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
Reviewed
Rev100
ML 0.4 2016-09-23
11:27:51
42.9123 13.2337 7 2016-09-23
11:33:13
Sala Sismica INGV-Roma 29421011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-09-23 11:27:51 ± 0.09
Latitude 42.9123 ± 0.0018
Longitude 13.2337 ± 0.0074
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 29421011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 574
Semi-minor axis of confidence ellipse (meter) 280
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 258
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 201
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.06
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18076
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 1
Type of magnitude ML
Reference to an origin 29421011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-09-23 11:33:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.AQU.HHZ. 2016-09-23T11:28:00.52 3.0 negative manual P -0.01 0
IV.CSP1.EHZ. 2016-09-23T11:27:59.27 0.6 undecidable manual S 353 20.0688 108 0.07 65
IV.FDMO.HHZ. 2016-09-23T11:27:58.65 0.6 undecidable manual S 319 18.1707 110 0.06 65
IV.CSP1.EHZ. 2016-09-23T11:27:55.98 1.0 undecidable manual P 353 20.0688 108 -0.12 32
IV.T1242.HHZ. 2016-09-23T11:27:55.95 0.3 undecidable manual S 194 9.4794 125 0.04 100
IV.FDMO.HHZ. 2016-09-23T11:27:55.62 1.0 positive manual P 319 18.1707 110 -0.13 32
IV.MC2.EHZ. 2016-09-23T11:27:54.45 0.6 undecidable manual S 268 3.5964 151 -0.06 67
IV.T1242.HHZ. 2016-09-23T11:27:54.19 0.6 positive manual P 194 9.4794 125 -0.01 67
IV.MC2.EHZ. 2016-09-23T11:27:53.40 0.6 undecidable manual P 268 3.5964 151 0.01 68
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1242.HHE. ML:0.2 0.000026459455 0.2368 AML other m 2016-09-23T11:27:56.11
IV.T1242.HHN. ML:0.5 0.000052276660000000004 0.16 AML other m 2016-09-23T11:27:56.22
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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