Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 19-03-2021 and time 08:18:52 (UTC) in region 1 km SW Cagli (PU)

A magnitude ML 0.8 earthquake occured in region: 1 km SW Cagli (PU), on

  • 19-03-2021 08:18:52 (UTC)
  • 19-03-2021 09:18:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5410, 12.6390 at 16 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.

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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 1 8731 8731
Cantiano PU 8 2245 10976
Frontone PU 9 1300 12276
Acqualagna PU 9 4393 16669
Piobbico PU 12 2029 18698
Serra Sant'Abbondio PU 12 1027 19725
Fermignano PU 15 8596 28321
Scheggia e Pascelupo PG 15 1393 29714
Pergola PU 16 6333 36047
Urbania PU 17 7099 43146
Apecchio PU 18 1882 45028
Pietralunga PG 20 2111 47139

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km SW of Fano (60888 inhabitants)
47 Km SW of Pesaro (94582 inhabitants)
52 Km NE of Perugia (166134 inhabitants)
58 Km S of Rimini (147750 inhabitants)
62 Km E of Arezzo (99543 inhabitants)
65 Km N of Foligno (57155 inhabitants)
72 Km W of Ancona (100861 inhabitants)
74 Km SE of Cesena (96758 inhabitants)
90 Km SE of Forlì (117913 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 2021-03-19
08:18:52		 43.5412 12.6388 16 2021-03-19
08:29:27		 Sala Sismica INGV-Roma 88274201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-19 08:18:52 ± 0.17
Latitude 43.5412 ± 0.0045
Longitude 12.6388 ± 0.0062
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 88274201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 487
Semi-minor axis of confidence ellipse (meter) 267
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 174
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.06745
Epicentral distance of station farthest from the epicenter (degree) 0.19425
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 88274201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-19 08:29:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATPI.EHE. 2021-03-19T08:19:01.06 0.6 undecidable manual S 242 21.5673 115 0.32 48
IV.ATPC.HNE. 2021-03-19T08:18:59.72 0.6 undecidable manual S 245 16.0728 125 0.24 49
IV.MPAG.EHZ. 2021-03-19T08:18:59.23 0.3 undecidable manual S 45 13.7751 130 0.24 72
IV.SSFR.HNN. 2021-03-19T08:18:59.47 0.3 undecidable manual S 135 16.3725 124 -0.08 75
IV.FRON.EHZ. 2021-03-19T08:18:58.04 0.6 undecidable manual S 110 7.4814 150 0.14 50
IV.ATBU.HNE. 2021-03-19T08:18:58.74 0.3 undecidable manual S 225 10.2786 140 0.41 71
IV.ATSC.EHN. 2021-03-19T08:18:58.86 0.3 undecidable manual S 164 13.5753 131 -0.09 75
IV.ATPI.EHE. 2021-03-19T08:18:57.04 0.3 undecidable manual P 242 21.5673 115 -0.11 74
IV.NARO.HHZ. 2021-03-19T08:18:57.92 0.3 undecidable manual S 329 9.0798 144 -0.21 74
IV.PIEI.HHZ. 2021-03-19T08:18:57.77 0.3 undecidable manual S 266 8.3805 147 -0.26 73
IV.MPAG.EHZ. 2021-03-19T08:18:56.23 0.6 undecidable manual P 45 13.7751 130 0.1 49
IV.SSFR.HNN. 2021-03-19T08:18:56.32 0.3 undecidable manual P 135 16.3725 124 -0.14 75
IV.ATPC.HNE. 2021-03-19T08:18:56.38 0.6 undecidable manual P 245 16.0728 125 -0.04 50
IV.ATSC.EHN. 2021-03-19T08:18:55.97 0.3 undecidable manual P 164 13.5753 131 -0.14 75
IV.PIEI.HHZ. 2021-03-19T08:18:55.43 0.1 negative manual P 266 8.3805 147 -0.15 100
IV.FRON.EHZ. 2021-03-19T08:18:55.44 0.3 undecidable manual P 110 7.4814 150 -0.07 77
IV.ATBU.HNE. 2021-03-19T08:18:55.89 0.3 undecidable manual P 225 10.2786 140 0.14 75
IV.NARO.HHZ. 2021-03-19T08:18:55.63 0.6 undecidable manual P 329 9.0798 144 -0.01 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHN. ML:1.0 0.00008565000000000001 1.9 AML other m 2021-03-19T08:18:57.00
IV.PIEI.HHE. ML:1.3 0.0001855 1.56 AML other m 2021-03-19T08:18:58.16
IV.FRON.EHN. ML:1.1 0.00011454999999999999 0.14 AML other m 2021-03-19T08:18:58.33
IV.FRON.EHE. ML:0.6 0.00003251379 0.0768 AML other m 2021-03-19T08:18:58.77
IV.NARO.HHN. ML:0.7 0.000045700000000000006 0.66 AML other m 2021-03-19T08:18:58.63
IV.NARO.HHE. ML:0.6 0.000035188900000000005 0.0576 AML other m 2021-03-19T08:18:58.66
IV.MPAG.EHE. ML:0.7 0.00004225 0.16 AML other m 2021-03-19T08:18:59.39
IV.MPAG.EHN. ML:0.9 0.000066447035 0.1216 AML other m 2021-03-19T08:18:59.37
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