Earthquake with magnitude of ML 0.9 on date 13-04-2021 and time 07:43:37 (UTC) in region 6 km S Monte Cavallo (MC)

A magnitude ML 0.9 earthquake occured in region: 6 km S Monte Cavallo (MC), on

  • 13-04-2021 07:43:37 (UTC)
  • 13-04-2021 09:43:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9380, 12.9830 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Monte Cavallo MC 7 145 145
Sellano PG 7 1079 1224
Preci PG 8 724 1948
Visso MC 9 1107 3055
Ussita MC 13 444 3499
Pieve Torina MC 13 1458 4957
Cerreto di Spoleto PG 14 1075 6032
Fiordimonte MC 14 202 6234
Castelsantangelo sul Nera MC 15 281 6515
Serravalle di Chienti MC 15 1070 7585
Pievebovigliana MC 16 866 8451
Muccia MC 17 915 9366
Fiastra MC 18 559 9925
Norcia PG 18 4957 14882
Acquacanina MC 19 121 15003

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Foligno (57155 inhabitants)
50 Km NE of Terni (111501 inhabitants)
52 Km E of Perugia (166134 inhabitants)
67 Km W of Teramo (54892 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
92 Km NE of Viterbo (67173 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 0.9 2021-04-13
07:43:37
42.938 12.9833 11 2021-04-13
07:54:16
Sala Sismica INGV-Roma 89052841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-13 07:43:37 ± 0.05
Latitude 42.9380 ± 0.0027
Longitude 12.9833 ± 0.0061
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 89052841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 548
Semi-minor axis of confidence ellipse (meter) 277
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 77
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 13
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25451
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 89052841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-13 07:54:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIZZ.HHZ. 2021-04-13T07:45:32.24 3.0 undecidable manual Sn -8.02 0
IV.SPS2.HHZ. 2021-04-13T07:45:27.56 3.0 undecidable manual Sn -7.96 0
IV.ESML.HHZ. 2021-04-13T07:45:13.33 3.0 positive manual Pg 17.52 0
IV.ZONE.HHZ. 2021-04-13T07:45:05.92 3.0 undecidable manual Sn -3.44 0
AC.VLO.HHZ. 2021-04-13T07:45:01.70 3.0 negative manual Pn 3.47 0
IX.CSG3.HNZ.01 2021-04-13T07:45:01.14 3.0 undecidable manual Sg 4.56 0
IV.GIZZ.HHZ. 2021-04-13T07:44:57.13 3.0 negative manual Pg 12.01 0
GU.GRAM.HHZ. 2021-04-13T07:44:56.82 3.0 undecidable manual Sg 10.6 0
IV.TDS.HHZ. 2021-04-13T07:44:47.24 3.0 undecidable manual Pg 8.74 0
ST.CARE.EHZ. 2021-04-13T07:44:46.86 3.0 undecidable manual Pg 13.52 0
IV.ILOS.HHZ. 2021-04-13T07:44:46.22 3.0 positive manual Pn 0.87 0
GU.BHB.HHZ. 2021-04-13T07:44:45.15 3.0 undecidable manual Pn 4.59 0
IV.PTRJ.HHZ. 2021-04-13T07:44:35.95 3.0 undecidable manual Sg 0.98 0
IV.VENT.EHZ. 2021-04-13T07:44:33.65 3.0 undecidable manual Sn -3.42 0
OT.OT13.EHZ. 2021-04-13T07:44:25.79 3.0 positive manual Pg 6.93 0
OT.OT14.EHZ. 2021-04-13T07:44:21.13 3.0 positive manual Pg 4.95 0
IV.MSSA.HHZ. 2021-04-13T07:44:20.28 3.0 undecidable manual Pn 2.59 0
IV.MTMR.HNZ. 2021-04-13T07:44:18.02 3.0 undecidable manual Pn 1.75 0
IV.GIUL.HHZ. 2021-04-13T07:44:15.26 3.0 undecidable manual Sn -3.1 0
GU.GSCL.HHZ. 2021-04-13T07:44:10.96 3.0 undecidable manual Pn 1.28 0
IV.PAOL.HHZ. 2021-04-13T07:44:10.01 3.0 undecidable manual Pn -2.17 0
IT.FIE.HGZ. 2021-04-13T07:44:00.61 3.0 undecidable manual Pn 1.14 0
IV.CRTC.HHZ. 2021-04-13T07:43:51.06 3.0 undecidable manual P -2.13 0
IV.GAVE.HNZ. 2021-04-13T07:43:47.04 0.3 undecidable manual S 195 28.2495 50 -0.07 73
IV.MML1.EHZ. 2021-04-13T07:43:44.74 0.3 undecidable manual S 357 19.4694 50 -0.04 74
IV.FDMO.HHZ. 2021-04-13T07:43:43.12 0.3 undecidable manual S 38 13.7751 128 -0.02 75
IV.NRCA.HHZ. 2021-04-13T07:43:43.58 0.3 undecidable manual S 137 15.7731 124 -0.1 74
IV.GAVE.HNZ. 2021-04-13T07:43:42.83 0.3 undecidable manual P 195 28.2495 50 -0.03 73
IV.CESI.HHZ. 2021-04-13T07:43:41.99 0.3 undecidable manual S 319 9.7791 138 -0.12 74
IT.MTCL.HGE. 2021-04-13T07:43:41.23 0.3 undecidable manual S 12 6.2937 150 -0.17 74
IV.MML1.EHZ. 2021-04-13T07:43:41.59 0.1 undecidable manual P 357 19.4694 50 0.07 98
IV.NRCA.HHZ. 2021-04-13T07:43:40.91 0.1 undecidable manual P 137 15.7731 124 0.03 100
IV.CESI.HHZ. 2021-04-13T07:43:40.09 0.1 undecidable manual P 319 9.7791 138 0.11 99
IV.FDMO.HHZ. 2021-04-13T07:43:40.29 0.3 undecidable manual P 38 13.7751 128 -0.28 71
IV.FEMA.HNE. 2021-04-13T07:43:39.84 0.1 undecidable manual P 64 5.994 151 0.31 96
IT.MTCL.HGE. 2021-04-13T07:43:39.67 0.1 undecidable manual P 12 6.2937 150 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.0 0.000133 0.42 AML other m 2021-04-13T07:43:42.04
IV.CESI.HHN. ML:0.7 0.000059705325 0.1024 AML other m 2021-04-13T07:43:42.14
IV.FDMO.HHE. ML:0.9 0.00008576631500000001 0.1408 AML other m 2021-04-13T07:43:43.20
IV.FDMO.HHN. ML:0.8 0.00006627201499999999 0.1984 AML other m 2021-04-13T07:43:43.19
IV.NRCA.HHE. ML:0.9 0.0000660902 0.1216 AML other m 2021-04-13T07:43:43.89
IV.NRCA.HHN. ML:0.9 0.00006901815 0.16 AML other m 2021-04-13T07:43:43.62
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