INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.5 on date 17-02-2019 and time 16:21:42 (UTC) in region 3 km N Castelsantangelo sul Nera (MC)

A magnitude ML 0.5 earthquake occured in region: 3 km N Castelsantangelo sul Nera (MC), on

  • 17-02-2019 16:21:42 (UTC)
  • 17-02-2019 17:21:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.92, 13.15 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.

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 3 444 725
Visso MC 5 1107 1832
Preci PG 10 724 2556
Bolognola MC 10 142 2698
Acquacanina MC 13 121 2819
Fiastra MC 13 559 3378
Fiordimonte MC 14 202 3580
Montemonaco AP 14 604 4184
Monte Cavallo MC 15 145 4329
Norcia PG 15 4957 9286
Montefortino FM 16 1178 10464
Pieve Torina MC 16 1458 11922
Pievebovigliana MC 17 866 12788
Montegallo AP 17 523 13311
Sarnano MC 18 3264 16575
Amandola FM 18 3629 20204
Sellano PG 19 1079 21283

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
54 Km NW of Teramo (54892 inhabitants)
57 Km NE of Terni (111501 inhabitants)
66 Km E of Perugia (166134 inhabitants)
66 Km NW of L'Aquila (69753 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
93 Km W of Montesilvano (53738 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 0.5 2019-02-17
16:21:42
42.92 13.15 10 2019-02-17
16:39:30
Sala Sismica INGV-Roma 65631451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-17 16:21:42 ± 0.05
Latitude 42.92 ± 0.00
Longitude 13.15 ± 0.00
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 65631451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 453
Semi-minor axis of confidence ellipse (meter) 143
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 219
Circular confidence region, given by single value of horizontal uncertainty (meter) 450
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.02698
Epicentral distance of station farthest from the epicenter (degree) 0.40829
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 65631451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-17 16:39:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MTRA.EHZ. 2019-02-17T16:21:52.01 0.3 undecidable manual S 132 0.241 50 -0.13 73
IV.MML1.HNZ. 2019-02-17T16:21:51.79 0.6 undecidable manual S 326 0.2347 50 -0.16 48
IV.CESI.HHZ. 2019-02-17T16:21:51.04 0.3 undecidable manual S 295 0.2014 115 0.1 74
IV.TRE1.HNE. 2019-02-17T16:21:50.73 0.6 undecidable manual P 16 0.4083 50 -0.14 47
IV.MNTP.HNE. 2019-02-17T16:21:49.71 0.6 undecidable manual P 47 0.3175 50 0.4 45
IV.FDMO.HHZ. 2019-02-17T16:21:48.18 0.3 undecidable manual S 337 0.1268 127 -0.28 72
IV.MMO1.EHZ. 2019-02-17T16:21:48.47 0.3 undecidable manual S 99 0.1286 126 -0.05 76
IV.MML1.HNZ. 2019-02-17T16:21:47.91 0.1 undecidable manual P 326 0.2347 50 0 100
IV.NRCA.HHZ. 2019-02-17T16:21:47.17 0.3 undecidable manual S 199 0.0908 136 -0.24 73
IV.CESI.HHZ. 2019-02-17T16:21:47.38 0.1 undecidable manual P 295 0.2014 115 0.06 99
IV.FEMA.HNZ. 2019-02-17T16:21:47.27 0.6 undecidable manual S 299 0.0872 137 -0.05 51
IV.MTRA.EHZ. 2019-02-17T16:21:47.94 0.1 undecidable manual P 132 0.241 50 -0.08 98
IV.MMO1.EHZ. 2019-02-17T16:21:46.05 0.1 undecidable manual P 99 0.1286 126 0.13 99
IV.MC2.EHZ. 2019-02-17T16:21:46.04 0.3 undecidable manual S 107 0.027 164 -0.11 76
IV.FEMA.HNZ. 2019-02-17T16:21:45.37 0.1 undecidable manual P 299 0.0872 137 0.14 100
IV.FDMO.HHZ. 2019-02-17T16:21:45.81 0.6 undecidable manual P 337 0.1268 127 -0.08 50
IV.NRCA.HHZ. 2019-02-17T16:21:45.49 0.3 undecidable manual P 199 0.0908 136 0.2 74
IV.MC2.EHZ. 2019-02-17T16:21:44.74 0.3 undecidable manual P 107 0.027 164 0.18 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.7 5.82E-5 0.16 AML other m 2019-02-17T16:21:47.34
IV.NRCA.HHE. ML:0.7 6.36E-5 0.08 AML other m 2019-02-17T16:21:47.61
IV.FDMO.HHE. ML:0.3 2.005E-5 0.2 AML other m 2019-02-17T16:21:48.55
IV.FDMO.HHN. ML:0.5 2.79E-5 0.66 AML other m 2019-02-17T16:21:48.51
IV.CESI.HHE. ML:0.4 1.6465E-5 0.54 AML other m 2019-02-17T16:21:51.07
IV.CESI.HHN. ML:0.7 2.84E-5 1.54 AML other m 2019-02-17T16:21:51.21
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download