Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 27-03-2021 and time 21:18:41 (Italy) in region 3 km NW Cagli (PU)

A magnitude ML 0.6 earthquake occured in region: 3 km NW Cagli (PU), on

  • 27-03-2021 20:18:41 (UTC)
  • 27-03-2021 21:18:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5620, 12.6240 at 11 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
Cagli PU 3 8731 8731
Acqualagna PU 7 4393 13124
Piobbico PU 10 2029 15153
Cantiano PU 10 2245 17398
Frontone PU 11 1300 18698
Fermignano PU 13 8596 27294
Urbania PU 14 7099 34393
Serra Sant'Abbondio PU 14 1027 35420
Apecchio PU 16 1882 37302
Pergola PU 17 6333 43635
Scheggia e Pascelupo PG 18 1393 45028
Peglio PU 18 696 45724
Urbino PU 18 15019 60743

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km SW of Fano (60888 inhabitants)
45 Km SW of Pesaro (94582 inhabitants)
54 Km NE of Perugia (166134 inhabitants)
56 Km S of Rimini (147750 inhabitants)
61 Km E of Arezzo (99543 inhabitants)
68 Km N of Foligno (57155 inhabitants)
71 Km SE of Cesena (96758 inhabitants)
72 Km W of Ancona (100861 inhabitants)
87 Km SE of Forlì (117913 inhabitants)
100 Km SE of Faenza (58541 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
20:18:41		 43.5623 12.6237 11 2021-07-12
16:55:08		 Bollettino Sismico Italiano INGV 89392861
Reviewed
Rev100 		ML 0.6 2021-03-27
20:18:41		 43.5632 12.6245 11 2021-03-27
20:23:42		 Sala Sismica INGV-Roma 88530821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-27 20:18:41 ± 0.04
Latitude 43.5623 ± 0.0027
Longitude 12.6237 ± 0.0025
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89392861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 322
Semi-minor axis of confidence ellipse (meter) 239
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 4
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
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) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.05756
Epicentral distance of station farthest from the epicenter (degree) 0.29138
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 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 89392861
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-23 09:17:16

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 88530821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-27 20:23:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PARC.HHE. 2021-03-27T20:18:52.49 0.6 undecidable manual S 287 32.3454 90 -0.09 47
IV.ARVD.HHZ. 2021-03-27T20:18:51.11 0.3 undecidable manual S 105 26.5512 90 0.08 73
IV.TB03.DHZ.01 2021-03-27T20:18:50.64 0.6 undecidable manual S 224 24.753 90 0.09 48
IV.TB01.DHZ.01 2021-03-27T20:18:50.59 0.6 undecidable manual S 217 25.1526 90 -0.05 49
IV.ATPI.EHZ. 2021-03-27T20:18:49.79 0.6 undecidable manual S 235 21.6672 90 0.06 49
IV.SSFR.HHZ. 2021-03-27T20:18:48.89 0.6 undecidable manual S 138 18.9699 91 -0.1 48
IV.ATSC.EHZ. 2021-03-27T20:18:48.04 0.3 undecidable manual S 162 16.1727 91 -0.22 72
IV.MPAG.EHZ. 2021-03-27T20:18:47.62 0.3 undecidable manual S 56 13.1757 100 0.15 73
IV.TB03.DHZ.01 2021-03-27T20:18:47.21 0.6 undecidable manual P 224 24.753 90 0.49 44
IV.PARC.HHE. 2021-03-27T20:18:47.76 0.1 undecidable manual P 287 32.3454 90 -0.13 94
IV.ATBU.EHZ. 2021-03-27T20:18:47.33 0.6 undecidable manual S 212 11.3775 112 0.33 46
IV.ARVD.HHZ. 2021-03-27T20:18:46.89 0.3 undecidable manual P 105 26.5512 90 -0.1 72
IV.TB01.DHZ.01 2021-03-27T20:18:46.76 0.6 undecidable manual P 217 25.1526 90 -0.02 49
IV.FRON.EHZ. 2021-03-27T20:18:46.59 0.3 undecidable manual S 121 9.5793 122 0.02 75
IV.ATPI.EHZ. 2021-03-27T20:18:46.27 0.3 undecidable manual P 235 21.6672 90 0.03 74
IV.NARO.HHZ. 2021-03-27T20:18:45.68 0.6 undecidable manual S 327 6.3936 140 -0.26 48
IV.PIEI.HHZ. 2021-03-27T20:18:45.89 0.6 undecidable manual S 247 7.6812 132 -0.29 48
IV.MPAG.EHZ. 2021-03-27T20:18:45.05 0.3 undecidable manual P 56 13.1757 100 0.11 74
IV.SSFR.HHZ. 2021-03-27T20:18:45.54 0.3 undecidable manual P 138 18.9699 91 -0.28 70
IV.ATSC.EHZ. 2021-03-27T20:18:45.41 0.3 undecidable manual P 162 16.1727 91 0.01 75
IV.APEC.HHZ. 2021-03-27T20:18:45.42 0.3 undecidable manual P 269 16.3725 91 0 75
IV.ATBU.EHZ. 2021-03-27T20:18:44.91 0.3 undecidable manual P 212 11.3775 112 0.24 71
IV.NARO.HHZ. 2021-03-27T20:18:44.12 0.1 undecidable manual P 327 6.3936 140 0.06 100
IV.PIEI.HHZ. 2021-03-27T20:18:44.17 0.6 undecidable manual P 247 7.6812 132 -0.02 51
IV.FRON.EHZ. 2021-03-27T20:18:44.54 0.3 undecidable manual P 121 9.5793 122 0.11 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NARO.HHE. ML:0.7 0.00006825 1.28 AML other m 2021-03-27T20:18:45.15
IV.PIEI.HHN. ML:0.5 0.00004045 0.22 AML other m 2021-03-27T20:18:46.00
IV.NARO.HHN. ML:0.9 0.00011255000000000001 0.06 AML other m 2021-03-27T20:18:46.09
IV.PIEI.HHE. ML:0.6 0.00005259999999999999 0.84 AML other m 2021-03-27T20:18:46.03
IV.MPAG.EHE. ML:0.3 0.00002063162 0.0768 AML other m 2021-03-27T20:18:47.71
IV.MPAG.EHN. ML:0.2 0.0000149295 0.0768 AML other m 2021-03-27T20:18:47.73
IV.SSFR.HHE. ML:0.9 0.0000547 0.3 AML other m 2021-03-27T20:18:49.12
IV.SSFR.HHN. ML:0.9 0.000057650000000000005 0.42 AML other m 2021-03-27T20:18:49.61
IV.ARVD.HHE. ML:0.6 0.00002140198 0.5088 AML other m 2021-03-27T20:18:50.75
IV.ARVD.HHN. ML:0.3 0.000007913513849999999 0.1696 AML other m 2021-03-27T20:18:50.44
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