Earthquake with magnitude of ML 1.0 on date 09-04-2021 and time 16:32:22 (UTC) in region 6 km S Monte Cavallo (MC)

A magnitude ML 1.0 earthquake occured in region: 6 km S Monte Cavallo (MC), on

  • 09-04-2021 16:32:22 (UTC)
  • 09-04-2021 18:32:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9450, 13.0150 at 12 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 6 145 145
Visso MC 6 1107 1252
Preci PG 8 724 1976
Sellano PG 9 1079 3055
Ussita MC 10 444 3499
Pieve Torina MC 12 1458 4957
Fiordimonte MC 12 202 5159
Castelsantangelo sul Nera MC 13 281 5440
Pievebovigliana MC 14 866 6306
Serravalle di Chienti MC 15 1070 7376
Fiastra MC 15 559 7935
Muccia MC 16 915 8850
Cerreto di Spoleto PG 16 1075 9925
Acquacanina MC 16 121 10046
Norcia PG 18 4957 15003
Bolognola MC 18 142 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Foligno (57155 inhabitants)
52 Km NE of Terni (111501 inhabitants)
54 Km E of Perugia (166134 inhabitants)
65 Km W of Teramo (54892 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
95 Km NE of Viterbo (67173 inhabitants)
100 Km S of Fano (60888 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 1.0 2021-04-09
16:32:22
42.9452 13.0147 12 2021-04-09
16:38:53
Sala Sismica INGV-Roma 88945381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-09 16:32:22 ± 0.07
Latitude 42.9452 ± 0.0036
Longitude 13.0147 ± 0.0074
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 88945381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 479
Semi-minor axis of confidence ellipse (meter) 433
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 56
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38941
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 88945381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-09 16:38:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAPR.HNZ. 2021-04-09T16:34:01.59 3.0 undecidable manual Sg 14.44 0
IV.FREG.EHZ. 2021-04-09T16:33:46.14 3.0 undecidable manual Sg 7.5 0
IV.VOBA.EHZ. 2021-04-09T16:33:40.31 3.0 undecidable manual Sn -1.08 0
IV.GIZZ.HHZ. 2021-04-09T16:33:38.35 3.0 undecidable manual Pg 11.43 0
IV.CTI.HHZ. 2021-04-09T16:33:36.01 3.0 undecidable manual Sn -5.95 0
IV.SGTA.HHZ. 2021-04-09T16:33:27.60 3.0 undecidable manual Sn -1.5 0
IV.ILOS.HHZ. 2021-04-09T16:33:26.36 3.0 undecidable manual Pn -1.6 0
IV.SACR.HHZ. 2021-04-09T16:33:15.38 3.0 undecidable manual Sn -0.93 0
IV.RMP.HHZ. 2021-04-09T16:32:55.41 3.0 undecidable manual Sg 0.73 0
IV.VCEL.EHZ. 2021-04-09T16:32:48.01 3.0 undecidable manual Sn -0.14 0
IV.LPEL.HHZ. 2021-04-09T16:32:42.06 3.0 undecidable manual Pn 1.51 0
IV.FIR.HHZ. 2021-04-09T16:32:42.72 3.0 undecidable manual Pg 1.45 0
IV.SEI.HHZ. 2021-04-09T16:32:42.62 3.0 undecidable manual Pn -0.14 0
IV.LRP.EHZ. 2021-04-09T16:32:41.86 3.0 negative manual Pn -0.07 0
IV.RIBO.EHZ.01 2021-04-09T16:32:38.00 3.0 undecidable manual Pg -2.49 0
IV.EL6.EHZ. 2021-04-09T16:32:30.84 1.0 negative manual P 9 43.2234 91 -0.02 23
IV.CESI.HHZ. 2021-04-09T16:32:28.20 0.6 undecidable manual S 307 11.0778 117 -0.08 49
IV.FDMO.HHZ. 2021-04-09T16:32:28.24 0.6 undecidable manual S 30 11.6772 114 -0.18 48
IV.GAVE.EHZ. 2021-04-09T16:32:28.76 1.0 negative manual P 199 29.748 91 -0.03 24
IV.NRCA.HHZ. 2021-04-09T16:32:28.99 0.6 undecidable manual S 147 14.7741 101 -0.21 47
IV.CSP1.EHZ. 2021-04-09T16:32:27.68 0.1 undecidable manual P 43 22.3554 92 0.02 97
IV.FEMA.HNZ. 2021-04-09T16:32:27.05 0.6 undecidable manual S 57 3.3966 159 0.15 49
IV.FDMO.HHZ. 2021-04-09T16:32:26.05 0.1 undecidable manual P 30 11.6772 114 0.01 99
IT.MTCL.HGZ. 2021-04-09T16:32:26.86 0.6 undecidable manual S 347 5.4945 146 -0.31 47
IV.NRCA.HHZ. 2021-04-09T16:32:26.44 0.1 undecidable manual P 147 14.7741 101 -0.05 98
IV.MC2.EHZ. 2021-04-09T16:32:26.83 1.0 undecidable manual P 105 14.6742 101 0.36 23
IV.CESI.HHZ. 2021-04-09T16:32:26.01 0.1 undecidable manual P 307 11.0778 117 0.06 98
IT.MTCL.HGZ. 2021-04-09T16:32:25.35 0.1 undecidable manual P 347 5.4945 146 0.04 100
IV.FEMA.HNZ. 2021-04-09T16:32:25.35 0.3 undecidable manual P 57 3.3966 159 0.19 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.0 0.00011037710000000001 0.1152 AML other m 2021-04-09T16:32:28.26
IV.FDMO.HHE. ML:0.8 0.000073 0.12 AML other m 2021-04-09T16:32:28.31
IV.FDMO.HHN. ML:0.8 0.00007165 0.52 AML other m 2021-04-09T16:32:28.63
IV.CESI.HHN. ML:1.3 0.00020649999999999998 0.1 AML other m 2021-04-09T16:32:28.44
IV.NRCA.HHN. ML:1.3 0.000175 0.08 AML other m 2021-04-09T16:32:29.05
IV.NRCA.HHE. ML:1.0 0.00009704084 0.1024 AML other m 2021-04-09T16:32:29.30
IV.GAVE.EHE. ML:0.8 0.000031889135 0.2176 AML other m 2021-04-09T16:32:33.48
IV.GAVE.EHN. ML:0.7 0.000023988235000000004 0.1408 AML other m 2021-04-09T16:32:33.41
IV.CESI.HNE. ML:1.0 0.0001054943 0.1152 AML other m 2021-04-09T16:32:28.27
IV.CESI.HNN. ML:1.3 0.0002010727 0.1408 AML other m 2021-04-09T16:32:28.45
IV.NRCA.HNE. ML:1.0 0.00009737926 0.0768 AML other m 2021-04-09T16:32:29.27
IV.NRCA.HNN. ML:1.2 0.00015832625 0.1024 AML other m 2021-04-09T16:32:29.09
IV.CSP1.EHE. ML:0.9 0.00005361134 0.192 AML other m 2021-04-09T16:32:31.87
IV.CSP1.EHN. ML:0.9 0.000053595039999999994 0.9984 AML other m 2021-04-09T16:32:48.22
IV.GAVE.HNE. ML:1.4 0.00011290522999999999 0.6912 AML other m 2021-04-09T16:32:43.85
IV.GAVE.HNN. ML:1.6 0.00017358475499999998 0.7424 AML other m 2021-04-09T16:32:47.48
IV.EL6.EHE. ML:1.0 0.000030410515 1.7408 AML other m 2021-04-09T16:33:00.81
IV.EL6.EHN. ML:0.9 0.00002608292 1.088 AML other m 2021-04-09T16:32:46.89
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