Earthquake with magnitude of ML 0.6 on date 13-04-2021 and time 17:20:17 (Italy) in region 5 km SW Castelsantangelo sul Nera (MC)

A magnitude ML 0.6 earthquake occured in region: 5 km SW Castelsantangelo sul Nera (MC), on

  • 13-04-2021 15:20:17 (UTC)
  • 13-04-2021 17:20:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8540, 13.1310 at 13 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 5 281 281
Norcia PG 7 4957 5238
Preci PG 8 724 5962
Visso MC 9 1107 7069
Ussita MC 10 444 7513
Arquata del Tronto AP 16 1178 8691
Montegallo AP 17 523 9214
Montemonaco AP 17 604 9818
Sellano PG 17 1079 10897
Bolognola MC 18 142 11039
Cascia PG 18 3217 14256
Cerreto di Spoleto PG 18 1075 15331
Monte Cavallo MC 19 145 15476
Montefortino FM 20 1178 16654
Acquacanina MC 20 121 16775

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
51 Km NE of Terni (111501 inhabitants)
52 Km W of Teramo (54892 inhabitants)
60 Km NW of L'Aquila (69753 inhabitants)
67 Km E of Perugia (166134 inhabitants)
91 Km SW of Ancona (100861 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
97 Km NE of Viterbo (67173 inhabitants)
99 Km W of Pescara (121014 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 0.6 2021-04-13
15:20:17
42.8543 13.1308 13 2021-04-13
15:26:57
Sala Sismica INGV-Roma 89062061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-13 15:20:17 ± 0.09
Latitude 42.8543 ± 0.0045
Longitude 13.1308 ± 0.0049
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 89062061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 451
Semi-minor axis of confidence ellipse (meter) 257
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 26
Circular confidence region, given by single value of horizontal uncertainty (meter) 450.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 137
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) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.02428
Epicentral distance of station farthest from the epicenter (degree) 0.24372
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:0.6

Field Value
Value 0.6
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 89062061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-13 15:26:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHZ. 2021-04-13T15:20:26.55 0.6 undecidable manual S 312 24.8529 98 0.24 48
IV.CSP1.EHZ. 2021-04-13T15:20:26.94 0.6 undecidable manual S 13 27.0507 97 0.05 49
IV.GAVE.EHZ. 2021-04-13T15:20:26.74 0.6 undecidable manual S 227 26.3514 97 0.03 50
IV.FDMO.HHZ. 2021-04-13T15:20:25.13 0.3 undecidable manual S 350 20.5683 102 -0.05 75
IT.MTCL.HGZ. 2021-04-13T15:20:24.66 0.3 undecidable manual S 325 18.7701 104 -0.07 75
IV.MMO1.EHZ. 2021-04-13T15:20:23.95 0.6 undecidable manual S 73 16.6722 109 -0.25 49
IV.CSP1.EHZ. 2021-04-13T15:20:22.94 0.1 undecidable manual P 13 27.0507 97 0.15 97
IV.GAVE.EHZ. 2021-04-13T15:20:22.96 1.0 undecidable manual P 227 26.3514 97 0.27 24
IV.MC2.EHZ. 2021-04-13T15:20:22.52 0.6 undecidable manual S 37 7.881 139 0.28 48
IV.CESI.HHZ. 2021-04-13T15:20:22.55 0.6 negative manual P 312 24.8529 98 0.09 49
IV.MMO1.EHZ. 2021-04-13T15:20:21.17 0.6 negative manual P 73 16.6722 109 -0.06 50
IV.NRCA.HHZ. 2021-04-13T15:20:21.39 0.6 undecidable manual S 210 2.6973 165 -0.19 51
IV.FDMO.HHZ. 2021-04-13T15:20:21.76 0.1 undecidable manual P 350 20.5683 102 -0.04 100
IT.MTCL.HGZ. 2021-04-13T15:20:21.28 0.1 undecidable manual P 325 18.7701 104 -0.27 96
IV.MC2.EHZ. 2021-04-13T15:20:20.34 0.6 negative manual P 37 7.881 139 0.23 49
IV.NRCA.HHZ. 2021-04-13T15:20:19.76 1.0 undecidable manual P 210 2.6973 165 0.04 26
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.2 0.0002055 0.14 AML other m 2021-04-13T15:20:21.51
IV.NRCA.HHE. ML:1.2 0.00020250000000000002 0.08 AML other m 2021-04-13T15:20:21.58
IV.FDMO.HHE. ML:0.4 0.000013171685 0.3712 AML other m 2021-04-13T15:20:25.53
IV.FDMO.HHN. ML:0.4 0.000017370832500000002 0.1536 AML other m 2021-04-13T15:20:25.58
IV.CESI.HHE. ML:0.4 0.00001325984 0.2944 AML other m 2021-04-13T15:20:26.82
IV.CESI.HHN. ML:0.7 0.000027511260500000004 0.256 AML other m 2021-04-13T15:20:26.84
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