Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 30-09-2019 and time 20:05:45 (Italy) in region 6 km S Castelsantangelo sul Nera (MC)

A magnitude ML 1.1 earthquake occured in region: 6 km S Castelsantangelo sul Nera (MC), on

  • 30-09-2019 18:05:45 (UTC)
  • 30-09-2019 20:05:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8420, 13.1650 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
Castelsantangelo sul Nera MC 6 281 281
Norcia PG 8 4957 5238
Preci PG 11 724 5962
Ussita MC 12 444 6406
Visso MC 12 1107 7513
Arquata del Tronto AP 13 1178 8691
Montegallo AP 14 523 9214
Montemonaco AP 15 604 9818
Accumoli RI 18 667 10485
Bolognola MC 18 142 10627
Montefortino FM 18 1178 11805
Cascia PG 18 3217 15022

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
49 Km W of Teramo (54892 inhabitants)
53 Km NE of Terni (111501 inhabitants)
58 Km NW of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
88 Km W of Montesilvano (53738 inhabitants)
91 Km SW of Ancona (100861 inhabitants)
96 Km W of Pescara (121014 inhabitants)
99 Km E of Viterbo (67173 inhabitants)
99 Km NW of Chieti (51815 inhabitants)
100 Km NE of Guidonia Montecelio (88673 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 1.1 2019-09-30
18:05:45		 42.8418 13.165 11 2019-09-30
18:18:49		 Sala Sismica INGV-Roma 72929161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-30 18:05:45 ± 0.08
Latitude 42.8418 ± 0.0054
Longitude 13.1650 ± 0.0074
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72929161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 625
Semi-minor axis of confidence ellipse (meter) 551
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 311
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38941
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 72929161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-30 18:18:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IT.RMMM.HGZ. 2019-09-30T18:06:20.39 3.0 undecidable manual S -0.05 0
IV.COR1.EHZ. 2019-09-30T18:06:12.28 3.0 undecidable manual S -2.62 0
IT.RMMM.HGZ. 2019-09-30T18:06:07.40 3.0 positive manual P 2.35 0
IV.TERO.HHZ. 2019-09-30T18:05:59.51 0.1 undecidable manual S 124 43.2234 50 -0.16 91
IV.SNTG.HHZ. 2019-09-30T18:05:55.50 3.0 undecidable manual P 0.17 0
IV.LNSS.HHZ. 2019-09-30T18:05:55.79 0.1 undecidable manual S 201 28.3494 50 0.08 95
IV.TERO.HHZ. 2019-09-30T18:05:53.94 0.1 undecidable manual P 124 43.2234 50 0.2 90
IV.FDMO.HHZ. 2019-09-30T18:05:53.77 0.3 undecidable manual S 344 22.4553 50 -0.36 68
IV.LNSS.HHZ. 2019-09-30T18:05:51.48 0.1 undecidable manual P 201 28.3494 50 0.03 96
IV.MMO1.EHZ. 2019-09-30T18:05:51.75 0.1 undecidable manual S 64 14.5743 127 -0.23 95
IV.FDMO.HHZ. 2019-09-30T18:05:50.64 0.1 undecidable manual P 344 22.4553 50 0.1 96
IV.MC2.EHZ. 2019-09-30T18:05:50.61 0.1 undecidable manual S 14 7.9809 144 0.27 95
IV.NRCA.HHZ. 2019-09-30T18:05:49.34 0.1 undecidable manual S 257 4.1958 159 -0.37 93
IV.MMO1.EHZ. 2019-09-30T18:05:49.27 0.1 undecidable manual P 64 14.5743 127 -0.03 98
IV.NRCA.HHZ. 2019-09-30T18:05:48.03 0.1 undecidable manual P 257 4.1958 159 0.04 100
IV.MC2.EHZ. 2019-09-30T18:05:48.67 0.1 undecidable manual P 14 7.9809 144 0.32 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.3 0.000315 0.12 AML other m 2019-09-30T18:05:49.49
IV.NRCA.HHN. ML:1.2 0.00027850000000000005 1.1 AML other m 2019-09-30T18:05:49.44
IV.NRCA.HNE. ML:1.3 0.00031278995 0.1152 AML other m 2019-09-30T18:05:49.50
IV.NRCA.HNN. ML:1.2 0.00023635145 0.0896 AML other m 2019-09-30T18:05:49.00
IV.FDMO.HHE. ML:0.2 0.0000076429645 0.2432 AML other m 2019-09-30T18:05:55.00
IV.TERO.HHN. ML:0.5 0.000009152026000000001 0.0896 AML other m 2019-09-30T18:06:00.42
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