Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 21-11-2019 and time 13:35:29 (Italy) in region 3 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 1.4 earthquake occured in region: 3 km SE Castelsantangelo sul Nera (MC), on

  • 21-11-2019 12:35:29 (UTC)
  • 21-11-2019 13:35:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8770, 13.1850 at 10 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 3 281 281
Ussita MC 8 444 725
Visso MC 10 1107 1832
Preci PG 12 724 2556
Norcia PG 12 4957 7513
Montemonaco AP 12 604 8117
Montegallo AP 13 523 8640
Bolognola MC 14 142 8782
Arquata del Tronto AP 15 1178 9960
Montefortino FM 15 1178 11138
Acquacanina MC 17 121 11259
Fiastra MC 18 559 11818
Amandola FM 18 3629 15447
Fiordimonte MC 19 202 15649
Monte Cavallo MC 20 145 15794

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
49 Km NW of Teramo (54892 inhabitants)
56 Km NE of Terni (111501 inhabitants)
61 Km N of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
96 Km W of Pescara (121014 inhabitants)
100 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 1.4 2019-11-21
12:35:29		 42.8773 13.1847 10 2019-11-21
12:41:26		 Sala Sismica INGV-Roma 73948291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-21 12:35:29 ± 0.09
Latitude 42.8773 ± 0.0063
Longitude 13.1847 ± 0.0061
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73948291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 668
Semi-minor axis of confidence ellipse (meter) 444
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 184
Circular confidence region, given by single value of horizontal uncertainty (meter) 670.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.24102
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 73948291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-21 12:41:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHZ. 2019-11-21T12:35:39.71 0.6 undecidable manual S 302 26.751 110 0.08 47
IV.MF5.EHE. 2019-11-21T12:35:39.54 0.6 undecidable manual S 61 25.4523 111 0.32 46
IV.FDMO.HHZ. 2019-11-21T12:35:36.96 0.6 undecidable manual S 336 19.3695 117 -0.3 46
IV.FEMA.HNZ. 2019-11-21T12:35:36.10 0.6 undecidable manual S 311 14.4744 124 0.31 47
IV.MF5.EHE. 2019-11-21T12:35:35.33 0.1 undecidable manual P 61 25.4523 111 0.12 95
IV.CESI.HHZ. 2019-11-21T12:35:35.33 0.1 undecidable manual P 302 26.751 110 -0.13 96
IV.CSP1.EHZ. 2019-11-21T12:35:34.70 0.1 undecidable manual P 4 23.8539 112 -0.21 94
IV.MMO1.EHZ. 2019-11-21T12:35:34.71 0.6 undecidable manual S 78 11.7771 130 -0.35 46
IV.FDMO.HHZ. 2019-11-21T12:35:34.09 1.0 undecidable manual P 336 19.3695 117 0 25
IV.FEMA.HNZ. 2019-11-21T12:35:33.19 0.1 undecidable manual P 311 14.4744 124 -0.04 98
IV.MC2.EHZ. 2019-11-21T12:35:33.76 0.6 undecidable manual S 5 3.7962 159 0.38 47
IV.NRCA.HHZ. 2019-11-21T12:35:33.83 0.6 undecidable manual S 230 7.4814 142 -0.19 48
IV.MMO1.EHZ. 2019-11-21T12:35:32.73 0.6 negative manual P 78 11.7771 130 -0.08 49
IT.VNF1.HGZ. 2019-11-21T12:35:32.81 3.0 positive manual P -0.02 0
IV.MC2.EHZ. 2019-11-21T12:35:32.08 0.1 undecidable manual P 5 3.7962 159 0.24 97
IV.NRCA.HHZ. 2019-11-21T12:35:32.24 0.1 positive manual P 230 7.4814 142 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.2 0.0002405 0.14 AML other m 2019-11-21T12:35:33.95
IV.NRCA.HHE. ML:1.5 0.0005250000000000001 0.16 AML other m 2019-11-21T12:35:33.96
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