Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 27-03-2021 and time 21:29:13 (UTC) in region 5 km W Monte Cavallo (MC)

A magnitude ML 0.6 earthquake occured in region: 5 km W Monte Cavallo (MC), on

  • 27-03-2021 21:29:13 (UTC)
  • 27-03-2021 22:29:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9820, 12.9480 at 7 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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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 5 145 145
Serravalle di Chienti MC 10 1070 1215
Sellano PG 10 1079 2294
Pieve Torina MC 11 1458 3752
Visso MC 13 1107 4859
Fiordimonte MC 13 202 5061
Preci PG 14 724 5785
Muccia MC 14 915 6700
Pievebovigliana MC 14 866 7566
Ussita MC 16 444 8010
Valtopina PG 18 1398 9408
Fiastra MC 18 559 9967
Cerreto di Spoleto PG 18 1075 11042
Sefro MC 18 422 11464
Acquacanina MC 19 121 11585
Castelsantangelo sul Nera MC 19 281 11866
Nocera Umbra PG 19 5839 17705
Camerino MC 20 6974 24679
Trevi PG 20 8469 33148

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of Foligno (57155 inhabitants)
48 Km E of Perugia (166134 inhabitants)
53 Km NE of Terni (111501 inhabitants)
71 Km NW of Teramo (54892 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
93 Km NE of Viterbo (67173 inhabitants)
96 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
Bulletin
Rev1000 		ML 0.6 2021-03-27
21:29:13		 42.982 12.9485 7 2021-07-12
16:55:08		 Bollettino Sismico Italiano INGV 89427051
Reviewed
Rev100 		ML 0.6 2021-03-27
21:29:13		 42.9838 12.9502 6 2021-03-27
21:35:26		 Sala Sismica INGV-Roma 88533601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-27 21:29:13 ± 0.07
Latitude 42.9820 ± 0.0027
Longitude 12.9485 ± 0.0025
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89427051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 266
Semi-minor axis of confidence ellipse (meter) 85
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 210
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
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) 0.03867
Epicentral distance of station farthest from the epicenter (degree) 0.34084
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 88533601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-27 21:35:26

ML:0.6

Field Value
Value 0.6
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 89427051
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-24 08:36:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHN. 2021-03-27T21:29:25.08 0.6 undecidable manual S 188 32.4453 102 -0.22 46
IV.ATCC.EHE. 2021-03-27T21:29:25.54 0.6 undecidable manual S 312 33.6441 102 -0.17 46
IV.MMO1.EHZ. 2021-03-27T21:29:24.86 0.3 undecidable manual S 106 32.0457 102 -0.31 67
IV.ASSB.HHZ. 2021-03-27T21:29:22.48 0.3 undecidable manual S 286 24.4533 106 -0.13 71
IV.CSP1.EHZ. 2021-03-27T21:29:22.43 0.3 undecidable manual S 60 24.0537 106 -0.05 72
IV.MC2.EHZ. 2021-03-27T21:29:21.63 0.6 undecidable manual S 112 21.0678 109 0.16 47
IV.FOSV.HNE. 2021-03-27T21:29:21.80 0.6 undecidable manual P 336 37.8288 101 0.31 44
IV.NRCA.HHZ. 2021-03-27T21:29:21.84 0.3 undecidable manual S 141 21.2676 108 0.29 69
IV.MMO1.EHZ. 2021-03-27T21:29:20.02 0.3 undecidable manual P 106 32.0457 102 -0.33 67
IV.ATCC.EHE. 2021-03-27T21:29:20.72 0.1 undecidable manual P 312 33.6441 102 0.05 94
IV.GAVE.EHN. 2021-03-27T21:29:20.47 0.1 undecidable manual P 188 32.4453 102 0.04 95
IV.MML1.HNZ. 2021-03-27T21:29:19.48 0.3 undecidable manual S 7 14.6742 116 0.04 73
IV.NRCA.HHZ. 2021-03-27T21:29:18.32 0.3 undecidable manual P 141 21.2676 108 0.06 72
IV.FDMO.HHZ. 2021-03-27T21:29:18.80 0.6 undecidable manual S 62 12.7761 119 -0.04 49
IV.MC2.EHZ. 2021-03-27T21:29:18.40 0.6 undecidable manual P 112 21.0678 109 0.18 47
IV.ASSB.HHZ. 2021-03-27T21:29:18.70 0.3 undecidable manual P 286 24.4533 106 -0.17 70
IV.CSP1.EHZ. 2021-03-27T21:29:18.79 0.6 undecidable manual P 60 24.0537 106 -0.01 48
IV.FEMA.HNZ. 2021-03-27T21:29:17.69 0.6 undecidable manual S 105 8.4804 130 0.08 49
IV.MML1.HNZ. 2021-03-27T21:29:17.06 0.3 undecidable manual P 7 14.6742 116 0.02 73
IV.CESI.HHZ. 2021-03-27T21:29:16.65 0.1 undecidable manual S 306 4.3956 148 -0.01 100
IV.FDMO.HHZ. 2021-03-27T21:29:16.83 0.1 undecidable manual P 62 12.7761 119 0.13 96
IT.MTCL.HGZ. 2021-03-27T21:29:16.40 0.3 undecidable manual S 72 4.2957 148 -0.25 71
IT.MTCL.HGZ. 2021-03-27T21:29:15.53 0.1 undecidable manual P 72 4.2957 148 0.1 98
IV.CESI.HHZ. 2021-03-27T21:29:15.64 0.1 undecidable manual P 306 4.3956 148 0.2 96
IV.FEMA.HNZ. 2021-03-27T21:29:15.87 0.6 undecidable manual P 105 8.4804 130 -0.12 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.6 0.000031150000000000005 1.36 AML other m 2021-03-27T21:29:23.28
IV.ASSB.HHN. ML:0.5 0.0000216 0.72 AML other m 2021-03-27T21:29:23.21
IV.NRCA.HHE. ML:0.7 0.00003375 1.88 AML other m 2021-03-27T21:29:23.00
IV.ASSB.HHE. ML:0.6 0.0000233 1.08 AML other m 2021-03-27T21:29:24.76
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