Earthquake with magnitude of ML 0.4 on date 21-10-2017 and time 05:32:28 (Italy) in region 5 km S Fiordimonte (MC)

A magnitude ML 0.4 earthquake occured in region: 5 km S Fiordimonte (MC), on

  • 21-10-2017 03:32:28 (UTC)
  • 21-10-2017 05:32:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9910, 13.1090 at 9 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Fiordimonte MC 5 202 202
Ussita MC 6 444 646
Fiastra MC 6 559 1205
Visso MC 7 1107 2312
Acquacanina MC 7 121 2433
Pieve Torina MC 8 1458 3891
Pievebovigliana MC 8 866 4757
Monte Cavallo MC 9 145 4902
Bolognola MC 10 142 5044
Castelsantangelo sul Nera MC 11 281 5325
Muccia MC 11 915 6240
Preci PG 14 724 6964
Serravalle di Chienti MC 16 1070 8034
Camerino MC 17 6974 15008
Sarnano MC 17 3264 18272
Cessapalombo MC 18 512 18784
Sellano PG 19 1079 19863
Caldarola MC 19 1823 21686
Montefortino FM 20 1178 22864

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
60 Km E of Perugia (166134 inhabitants)
61 Km NE of Terni (111501 inhabitants)
61 Km NW of Teramo (54892 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
77 Km SW of Ancona (100861 inhabitants)
95 Km S of Fano (60888 inhabitants)
100 Km NW of Montesilvano (53738 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 0.4 2017-10-21
03:32:28
42.9913 13.1088 9 2018-09-04
09:08:00
Bollettino Sismico Italiano INGV 55349191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-10-21 03:32:28 ± 0.12
Latitude 42.9913 ± 0.0027
Longitude 13.1088 ± 0.0037
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 55349191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 318
Semi-minor axis of confidence ellipse (meter) 104
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 174
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.04766
Epicentral distance of station farthest from the epicenter (degree) 0.25631
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:0.4

Field Value
Value 0.4
Uncertainty 0.1
Num. used stations 5
Type of magnitude ML
Reference to an origin 55349191
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-04-18 12:55:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2017-10-21T03:32:39.65 0.6 undecidable manual S 91 28.4493 108 0.32 46
IV.T1221.HNZ. 2017-10-21T03:32:38.33 0.3 undecidable manual S 236 25.752 110 -0.11 73
IV.T1214.EHZ. 2017-10-21T03:32:38.77 0.6 undecidable manual S 162 26.9508 109 -0.07 49
IV.MMO1.EHZ. 2017-10-21T03:32:36.45 0.3 undecidable manual S 120 20.4684 114 -0.28 71
IV.GUMA.HHZ. 2017-10-21T03:32:36.88 0.3 undecidable manual S 67 19.9689 115 0.29 71
IV.MF5.EHZ. 2017-10-21T03:32:35.02 0.6 undecidable manual P 91 28.4493 108 0.08 48
IV.CESI.HHZ. 2017-10-21T03:32:35.65 0.3 undecidable manual S 275 16.6722 119 0.1 74
IV.CSP1.EHZ. 2017-10-21T03:32:34.40 0.3 undecidable manual S 35 13.5753 124 -0.25 72
IV.T1214.EHZ. 2017-10-21T03:32:34.31 0.6 undecidable manual P 162 26.9508 109 -0.34 46
IV.T1221.HNZ. 2017-10-21T03:32:34.32 0.3 undecidable manual P 236 25.752 110 -0.1 73
IV.MC2.EHZ. 2017-10-21T03:32:34.26 0.3 undecidable manual S 144 10.9779 130 0.32 71
IV.GUMA.HHZ. 2017-10-21T03:32:33.38 0.3 undecidable manual P 67 19.9689 115 0.03 75
IV.SEF1.HNN. 2017-10-21T03:32:33.93 0.6 undecidable manual P 323 21.6672 113 0.28 47
IV.MMO1.EHZ. 2017-10-21T03:32:33.27 0.1 undecidable manual P 120 20.4684 114 -0.17 97
IV.MDAR.HNZ. 2017-10-21T03:32:33.62 1.0 undecidable manual P 7 22.4553 112 -0.19 24
IV.CSP1.EHZ. 2017-10-21T03:32:32.17 0.1 undecidable manual P 35 13.5753 124 -0.07 100
IV.FDMO.HHZ. 2017-10-21T03:32:32.40 0.3 undecidable manual S 341 5.2947 150 -0.25 73
IV.CESI.HHZ. 2017-10-21T03:32:32.86 0.1 undecidable manual P 275 16.6722 119 0.1 98
IV.NRCA.HNZ. 2017-10-21T03:32:32.93 0.1 undecidable manual P 179 17.4714 118 0.02 100
IV.MC2.EHZ. 2017-10-21T03:32:31.84 0.3 undecidable manual P 144 10.9779 130 0.02 76
IV.FEMA.HNZ. 2017-10-21T03:32:31.57 0.6 undecidable manual P 236 5.7942 148 0.44 47
IV.FDMO.HHZ. 2017-10-21T03:32:31.07 0.3 undecidable manual P 341 5.2947 150 -0.01 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.7 0.00008230000000000001 1.84 AML other m 2017-10-21T03:32:32.02
IV.CSP1.EHN. ML:0.4 0.0000254811 0.1008 AML other m 2017-10-21T03:32:34.51
IV.CSP1.EHE. ML:0.4 0.000029469944999999997 0.1792 AML other m 2017-10-21T03:32:34.49
IV.CESI.HHN. ML:0.4 0.0000196 1.62 AML other m 2017-10-21T03:32:36.16
IV.CESI.HHE. ML:0.4 0.000022199999999999998 0.42 AML other m 2017-10-21T03:32:36.74
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