Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 30-09-2019 and time 21:09:33 (Italy) in region 7 km S Castelsantangelo sul Nera (MC)

A magnitude ML 1.1 earthquake occured in region: 7 km S Castelsantangelo sul Nera (MC), on

  • 30-09-2019 19:09:33 (UTC)
  • 30-09-2019 21:09:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8320, 13.1720 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 7 281 281
Norcia PG 8 4957 5238
Preci PG 12 724 5962
Arquata del Tronto AP 12 1178 7140
Ussita MC 13 444 7584
Visso MC 13 1107 8691
Montegallo AP 13 523 9214
Montemonaco AP 15 604 9818
Accumoli RI 16 667 10485
Cascia PG 18 3217 13702
Montefortino FM 19 1178 14880
Bolognola MC 19 142 15022

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
48 Km W of Teramo (54892 inhabitants)
52 Km NE of Terni (111501 inhabitants)
57 Km NW of L'Aquila (69753 inhabitants)
71 Km E of Perugia (166134 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
92 Km SW of Ancona (100861 inhabitants)
95 Km W of Pescara (121014 inhabitants)
98 Km NW of Chieti (51815 inhabitants)
99 Km E of Viterbo (67173 inhabitants)
99 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
19:09:33		 42.8318 13.1722 11 2019-09-30
19:16:10		 Sala Sismica INGV-Roma 72930771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-30 19:09:33 ± 0.11
Latitude 42.8318 ± 0.0063
Longitude 13.1722 ± 0.0086
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 72930771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 842
Semi-minor axis of confidence ellipse (meter) 539
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 228
Circular confidence region, given by single value of horizontal uncertainty (meter) 840.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 149
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.04227
Epicentral distance of station farthest from the epicenter (degree) 0.37951
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
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 72930771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-30 19:16:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2019-09-30T19:09:47.88 0.6 undecidable manual S 123 42.1245 50 0.4 44
IV.CSP1.EHZ. 2019-09-30T19:09:43.84 0.6 undecidable manual S 5 28.9488 50 -0.12 48
IV.FDMO.HHZ. 2019-09-30T19:09:42.24 0.6 undecidable manual S 343 23.754 50 -0.32 46
IV.MTRA.EHZ. 2019-09-30T19:09:41.13 0.6 undecidable manual S 114 20.0688 118 -0.45 46
IV.TERO.HHZ. 2019-09-30T19:09:41.80 0.1 undecidable manual P 123 42.1245 50 0.14 93
IV.MMO1.EHZ. 2019-09-30T19:09:39.97 0.6 undecidable manual S 59 14.6742 126 0 50
IV.CSP1.EHZ. 2019-09-30T19:09:39.61 1.0 undecidable manual P 5 28.9488 50 -0.01 25
IV.MC2.EHZ. 2019-09-30T19:09:38.91 0.6 undecidable manual S 9 8.88 140 0.39 47
IV.FDMO.HHZ. 2019-09-30T19:09:38.68 1.0 positive manual P 343 23.754 50 -0.13 24
IV.NRCA.HHZ. 2019-09-30T19:09:37.52 0.6 undecidable manual S 272 4.6953 156 -0.22 49
IV.MTRA.EHZ. 2019-09-30T19:09:37.78 0.6 undecidable manual P 114 20.0688 118 -0.46 45
IV.MMO1.EHZ. 2019-09-30T19:09:37.49 0.6 undecidable manual P 59 14.6742 126 0.17 49
IV.NRCA.HHZ. 2019-09-30T19:09:36.16 0.1 undecidable manual P 272 4.6953 156 0.13 100
IV.MC2.EHZ. 2019-09-30T19:09:36.79 1.0 undecidable manual P 9 8.88 140 0.31 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.7 0.0007945 0.12 AML other m 2019-09-30T19:09:37.64
IV.NRCA.HHN. ML:1.6 0.0007055 0.08 AML other m 2019-09-30T19:09:38.10
IV.MTRA.EHN. ML:1.0 0.00007960000000000001 0.22 AML other m 2019-09-30T19:09:43.04
IV.MTRA.EHE. ML:1.1 0.0000964 1.52 AML other m 2019-09-30T19:09:43.22
IV.TERO.HHN. ML:0.8 0.000018849999999999997 0.08 AML other m 2019-09-30T19:09:48.04
IV.TERO.HHE. ML:0.7 0.000013650000000000001 1.28 AML other m 2019-09-30T19:09:48.15
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