Earthquake with magnitude of ML 0.8 on date 20-04-2021 and time 05:23:09 (Italy) in region 2 km N Monte Cavallo (MC)

A magnitude ML 0.8 earthquake occured in region: 2 km N Monte Cavallo (MC), on

  • 20-04-2021 03:23:09 (UTC)
  • 20-04-2021 05:23:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0140, 13.0050 at 6 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 2 145 145
Pieve Torina MC 5 1458 1603
Fiordimonte MC 8 202 1805
Serravalle di Chienti MC 8 1070 2875
Muccia MC 8 915 3790
Pievebovigliana MC 9 866 4656
Visso MC 11 1107 5763
Fiastra MC 13 559 6322
Ussita MC 13 444 6766
Acquacanina MC 14 121 6887
Camerino MC 15 6974 13861
Sellano PG 15 1079 14940
Preci PG 15 724 15664
Sefro MC 16 422 16086
Castelsantangelo sul Nera MC 18 281 16367
Bolognola MC 18 142 16509
Pioraco MC 19 1134 17643

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Foligno (57155 inhabitants)
51 Km E of Perugia (166134 inhabitants)
58 Km NE of Terni (111501 inhabitants)
69 Km NW of Teramo (54892 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
80 Km NW of L'Aquila (69753 inhabitants)
92 Km S of Fano (60888 inhabitants)
99 Km NE of Viterbo (67173 inhabitants)
100 Km S of Pesaro (94582 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 0.8 2021-04-20
03:23:09
43.0138 13.0048 6 2021-04-20
03:30:34
Sala Sismica INGV-Roma 89281441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-20 03:23:09 ± 0.14
Latitude 43.0138 ± 0.0036
Longitude 13.0048 ± 0.0049
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 89281441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 448
Semi-minor axis of confidence ellipse (meter) 84
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 22
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) 72
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.32286
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 9
Type of magnitude ML
Reference to an origin 89281441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-20 03:30:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2021-04-20T03:23:21.40 0.3 undecidable manual S 13 35.8419 100 -0.31 68
IV.ASSB.HHZ. 2021-04-20T03:23:19.10 0.1 undecidable manual S 277 28.2495 102 -0.01 97
IV.MMO1.EHZ. 2021-04-20T03:23:19.20 0.3 undecidable manual S 116 29.0487 102 -0.19 70
IV.NRCA.HHZ. 2021-04-20T03:23:17.00 0.1 undecidable manual S 156 21.867 106 0.03 98
IV.CSP1.EHZ. 2021-04-20T03:23:16.10 0.1 undecidable manual S 62 18.3705 109 0.29 93
IV.EL6.EHZ. 2021-04-20T03:23:16.00 0.3 undecidable manual P 13 35.8419 100 -0.37 67
IV.MMO1.EHZ. 2021-04-20T03:23:15.12 0.3 undecidable manual P 116 29.0487 102 0.09 72
IV.ASSB.HHZ. 2021-04-20T03:23:14.74 0.3 undecidable manual P 277 28.2495 102 -0.13 71
IV.CAFI.HHZ. 2021-04-20T03:23:14.52 3.0 undecidable manual P -0.2 0
IV.NRCA.HHZ. 2021-04-20T03:23:13.49 0.1 undecidable manual P 156 21.867 106 -0.14 96
IV.MML1.HNN. 2021-04-20T03:23:13.90 0.1 undecidable manual S 346 11.3775 118 0.33 94
IV.MC2.EHE. 2021-04-20T03:23:13.57 0.6 undecidable manual P 127 18.7701 108 0.53 44
IV.CESI.HHZ. 2021-04-20T03:23:13.00 0.1 undecidable manual S 263 8.1807 127 0.36 93
IV.CSP1.EHZ. 2021-04-20T03:23:13.12 0.1 undecidable manual P 62 18.3705 109 0.16 96
IV.SNTG.HNE. 2021-04-20T03:23:13.84 0.3 undecidable manual P 349 27.2505 103 -0.84 57
IV.APEC.HHZ. 2021-04-20T03:23:12.91 3.0 negative manual P 0.62 0
IV.FDMO.HHZ. 2021-04-20T03:23:12.40 0.1 undecidable manual S 69 7.1928 131 0.04 100
IV.CESI.HHZ. 2021-04-20T03:23:11.41 0.1 undecidable manual P 263 8.1807 127 0.28 95
IV.MML1.HNN. 2021-04-20T03:23:11.77 0.1 undecidable manual P 346 11.3775 118 0.09 98
IV.FDMO.HHZ. 2021-04-20T03:23:11.05 0.1 undecidable manual P 69 7.1928 131 0.08 99
IV.FEMA.HNE. 2021-04-20T03:23:11.00 0.1 undecidable manual P 148 6.7932 132 0.08 99
IT.MTCL.HGE. 2021-04-20T03:23:10.80 0.1 undecidable manual S 191 2.2977 160 -0.56 89
IT.MTCL.HGE. 2021-04-20T03:23:10.27 0.1 undecidable manual P 191 2.2977 160 -0.13 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.0 0.00007944999999999999 0.28 AML other m 2021-04-20T03:23:13.41
IV.CESI.HHE. ML:0.0 0.00009575 1.26 AML other m 2021-04-20T03:23:13.15
IV.FDMO.HHE. ML:0.0 0.00006839999999999998 1.46 AML other m 2021-04-20T03:23:13.98
IV.CESI.HHN. ML:0.0 0.00010085 0.86 AML other m 2021-04-20T03:23:14.41
IV.NRCA.HHE. ML:0.0 0.00006560000000000001 0.14 AML other m 2021-04-20T03:23:17.53
IV.NRCA.HHN. ML:0.0 0.00007625000000000001 0.14 AML other m 2021-04-20T03:23:17.62
IV.ASSB.HHN. ML:0.0 0.0000317 0.46 AML other m 2021-04-20T03:23:19.53
IV.ASSB.HHE. ML:0.0 0.000023650000000000002 0.3 AML other m 2021-04-20T03:23:19.29
IV.CSP1.EHE. ML:0.8 0.000059246755 0.08 AML other m 2021-04-20T03:23:17.14
IV.CSP1.EHN. ML:0.8 0.00005810285499999999 0.1792 AML other m 2021-04-20T03:23:18.09
IV.EL6.EHE. ML:0.9 0.000028063965 0.1792 AML other m 2021-04-20T03:23:22.13
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