Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 08-04-2020 and time 04:56:39 (UTC) in region 3 km NE Pietralunga (PG)

A magnitude ML 0.6 earthquake occured in region: 3 km NE Pietralunga (PG), on

  • 08-04-2020 04:56:39 (UTC)
  • 08-04-2020 06:56:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4670, 12.4510 at 9 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
Pietralunga PG 3 2111 2111
Apecchio PU 11 1882 3993
Cantiano PU 14 2245 6238
Piobbico PU 15 2029 8267
Montone PG 15 1680 9947
Gubbio PG 16 32216 42163
Città di Castello PG 17 39913 82076
Cagli PU 18 8731 90807
Scheggia e Pascelupo PG 19 1393 92200

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km N of Perugia (166134 inhabitants)
46 Km E of Arezzo (99543 inhabitants)
60 Km NW of Foligno (57155 inhabitants)
62 Km SW of Pesaro (94582 inhabitants)
62 Km SW of Fano (60888 inhabitants)
67 Km S of Rimini (147750 inhabitants)
76 Km S of Cesena (96758 inhabitants)
88 Km W of Ancona (100861 inhabitants)
90 Km SE of Forlì (117913 inhabitants)
92 Km E of Siena (53903 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 0.6 2020-04-08
04:56:39		 43.4668 12.4507 9 2020-04-08
05:07:08		 Sala Sismica INGV-Roma 78005661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-08 04:56:39 ± 0.13
Latitude 43.4668 ± 0.0027
Longitude 12.4507 ± 0.0050
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78005661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 348
Semi-minor axis of confidence ellipse (meter) 179
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 118
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 19
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.20594
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 78005661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-08 05:07:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BRSN.EHZ. 2020-04-08T04:56:53.45 3.0 negative manual P -0.05 0
IV.FRON.EHZ. 2020-04-08T04:56:47.41 0.3 undecidable manual S 76 22.8549 112 -0.22 70
IV.NARO.HHZ. 2020-04-08T04:56:46.11 0.3 undecidable manual S 33 19.0698 115 -0.32 69
IV.ATFO.HHZ. 2020-04-08T04:56:45.07 0.1 undecidable manual S 139 14.7741 122 -0.04 98
IV.FRON.EHZ. 2020-04-08T04:56:43.92 0.1 undecidable manual P 76 22.8549 112 -0.1 95
IV.ATBU.EHN. 2020-04-08T04:56:43.58 0.3 undecidable manual S 83 7.881 139 0.31 70
IV.ATVO.HHZ. 2020-04-08T04:56:43.64 0.1 undecidable manual S 201 10.0788 132 -0.15 96
IV.NARO.HHZ. 2020-04-08T04:56:43.21 0.1 undecidable manual P 33 19.0698 115 -0.12 95
IV.APEC.HHE. 2020-04-08T04:56:43.94 0.3 undecidable manual S 346 10.4784 131 0.04 74
IV.PIEI.HHZ. 2020-04-08T04:56:43.84 0.1 undecidable manual S 42 10.1787 132 0 99
IV.ATPI.EHZ. 2020-04-08T04:56:42.37 0.3 undecidable manual S 245 4.2957 155 -0.21 72
IV.ATFO.HHZ. 2020-04-08T04:56:42.55 0.1 undecidable manual P 139 14.7741 122 -0.02 98
IV.ATPC.HHN. 2020-04-08T04:56:42.24 0.3 undecidable manual S 18 1.5984 170 -0.05 75
IV.ATVO.HHZ. 2020-04-08T04:56:41.91 0.1 undecidable manual P 201 10.0788 132 0.1 97
IV.APEC.HHE. 2020-04-08T04:56:41.98 0.1 undecidable manual P 346 10.4784 131 0.11 97
IV.PIEI.HHZ. 2020-04-08T04:56:41.96 0.1 undecidable manual P 42 10.1787 132 0.13 97
IV.ATBU.EHN. 2020-04-08T04:56:41.82 0.1 undecidable manual P 83 7.881 139 0.31 93
IV.ATPI.EHZ. 2020-04-08T04:56:41.10 0.1 undecidable manual P 245 4.2957 155 -0.01 100
IV.ATPC.HHN. 2020-04-08T04:56:41.05 0.1 undecidable manual P 18 1.5984 170 0.11 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHN. ML:0.8 0.0000821 0.42 AML other m 2020-04-08T04:56:43.97
IV.ATVO.HHE. ML:0.8 0.0000829 0.18 AML other m 2020-04-08T04:56:43.86
IV.PIEI.HHN. ML:0.5 0.0000413 0.34 AML other m 2020-04-08T04:56:44.01
IV.PIEI.HHE. ML:0.6 0.00005325 0.88 AML other m 2020-04-08T04:56:44.18
IV.NARO.HHE. ML:0.5 0.000024550000000000004 0.18 AML other m 2020-04-08T04:56:46.68
IV.NARO.HHN. ML:0.5 0.000023899999999999998 0.56 AML other m 2020-04-08T04:56:47.57
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