Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 16-08-2019 and time 15:19:33 (UTC) in region 6 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 0.5 earthquake occured in region: 6 km SE Castelsantangelo sul Nera (MC), on

  • 16-08-2019 15:19:33 (UTC)
  • 16-08-2019 17:19:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8530, 13.1920 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 6 281 281
Norcia PG 10 4957 5238
Ussita MC 11 444 5682
Montegallo AP 12 523 6205
Visso MC 12 1107 7312
Montemonaco AP 12 604 7916
Arquata del Tronto AP 12 1178 9094
Preci PG 13 724 9818
Montefortino FM 16 1178 10996
Bolognola MC 16 142 11138
Accumoli RI 18 667 11805
Amandola FM 20 3629 15434
Acquacanina MC 20 121 15555

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
47 Km W of Teramo (54892 inhabitants)
55 Km NE of Terni (111501 inhabitants)
58 Km NW of L'Aquila (69753 inhabitants)
71 Km E of Perugia (166134 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
94 Km W of Pescara (121014 inhabitants)
97 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 0.5 2019-08-16
15:19:33		 42.853 13.1918 10 2019-08-16
15:30:22		 Sala Sismica INGV-Roma 71550101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-16 15:19:33 ± 0.12
Latitude 42.8530 ± 0.0063
Longitude 13.1918 ± 0.0074
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71550101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 761
Semi-minor axis of confidence ellipse (meter) 504
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 203
Circular confidence region, given by single value of horizontal uncertainty (meter) 760.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.05846
Epicentral distance of station farthest from the epicenter (degree) 0.25900
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 3
Type of magnitude ML
Reference to an origin 71550101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-16 15:30:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HNZ. 2019-08-16T15:19:43.87 0.3 undecidable manual S 306 28.749 50 -0.09 97
IV.CSP1.EHZ. 2019-08-16T15:19:43.04 0.3 undecidable manual S 2 26.5512 110 -0.28 93
IV.MF5.EHZ. 2019-08-16T15:19:43.92 0.3 undecidable manual S 55 26.3514 110 0.64 82
IV.FDMO.HHZ. 2019-08-16T15:19:41.63 0.3 undecidable manual S 337 22.0668 114 -0.25 92
IV.MTRA.EHZ. 2019-08-16T15:19:40.92 0.3 undecidable manual S 123 19.7691 116 -0.25 93
IV.MF5.EHZ. 2019-08-16T15:19:39.47 0.3 undecidable manual P 55 26.3514 110 0.31 91
IV.CESI.HNZ. 2019-08-16T15:19:39.32 0.6 undecidable manual P 306 28.749 50 -0.23 63
IV.CSP1.EHZ. 2019-08-16T15:19:39.04 0.3 undecidable manual P 2 26.5512 110 -0.14 95
IV.FDMO.HHZ. 2019-08-16T15:19:38.76 0.6 undecidable manual P 337 22.0668 114 0.41 60
IV.MMO1.HNZ. 2019-08-16T15:19:38.72 0.3 undecidable manual S 65 12.0768 129 -0.19 95
IV.MC2.EHZ. 2019-08-16T15:19:37.80 0.3 undecidable manual S 358 6.4935 146 0.23 98
IV.NRCA.HNZ. 2019-08-16T15:19:37.61 0.3 undecidable manual S 251 6.6933 146 0 100
IV.MTRA.EHZ. 2019-08-16T15:19:37.92 0.3 undecidable manual P 123 19.7691 116 -0.02 98
IV.MC2.EHZ. 2019-08-16T15:19:36.17 0.3 undecidable manual P 358 6.4935 146 0.31 95
IV.NRCA.HNZ. 2019-08-16T15:19:36.11 0.3 undecidable manual P 251 6.6933 146 0.23 96
IV.MMO1.HNZ. 2019-08-16T15:19:36.25 0.3 undecidable manual P 65 12.0768 129 -0.38 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:0.4 0.000022417060000000003 0.1536 AML other m 2019-08-16T15:19:41.72
IV.MTRA.EHN. ML:0.5 0.00002731806 0.2048 AML other m 2019-08-16T15:19:41.55
IV.MF5.EHE. ML:0.6 0.00002397001 0.2048 AML other m 2019-08-16T15:19:44.26
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