Earthquake with magnitude of ML 0.8 on date 01-04-2021 and time 17:44:02 (UTC) in region 6 km W Pietralunga (PG)

A magnitude ML 0.8 earthquake occured in region: 6 km W Pietralunga (PG), on

  • 01-04-2021 17:44:02 (UTC)
  • 01-04-2021 19:44:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4170, 12.3660 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
Pietralunga PG 7 2111 2111
Montone PG 7 1680 3791
CittĂ  di Castello PG 11 39913 43704
Umbertide PG 13 16681 60385
Apecchio PU 16 1882 62267
Monte Santa Maria Tiberina PG 17 1183 63450
Gubbio PG 19 32216 95666

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km N of Perugia (166134 inhabitants)
39 Km E of Arezzo (99543 inhabitants)
58 Km NW of Foligno (57155 inhabitants)
71 Km SW of Pesaro (94582 inhabitants)
71 Km SW of Fano (60888 inhabitants)
74 Km S of Rimini (147750 inhabitants)
81 Km S of Cesena (96758 inhabitants)
84 Km E of Siena (53903 inhabitants)
93 Km S of Forlì (117913 inhabitants)
96 Km W of Ancona (100861 inhabitants)
98 Km E of Firenze (382808 inhabitants)
98 Km N of Terni (111501 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 2021-04-01
17:44:02
43.417 12.366 6 2021-04-01
18:20:54
Sala Sismica INGV-Roma 88686891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-01 17:44:02 ± 0.18
Latitude 43.4170 ± 0.0036
Longitude 12.3660 ± 0.0099
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 88686891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 639
Semi-minor axis of confidence ellipse (meter) 474
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 273
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 234
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.27969
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 88686891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-01 18:20:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
AC.VLO.HHZ. 2021-04-01T17:45:52.75 3.0 undecidable manual Pg 21.690001 0
IV.CROCE.HNZ. 2021-04-01T17:45:42.82 3.0 undecidable manual Pn 1.77 0
CR.ZAG.BHZ. 2021-04-01T17:45:35.80 3.0 undecidable manual Sn 2.42 0
ST.CARE.EHZ. 2021-04-01T17:45:27.97 3.0 undecidable manual Sg 8.74 0
IV.LEVAN.EHZ. 2021-04-01T17:45:20.09 3.0 undecidable manual Pn -1.74 0
IV.MILN.HHZ. 2021-04-01T17:45:15.16 3.0 undecidable manual Sn 0.38 0
IV.SARZ.HHZ. 2021-04-01T17:45:10.72 3.0 undecidable manual Sn -0.57 0
OT.OT14.EHZ. 2021-04-01T17:44:47.70 3.0 undecidable manual Pn -1.42 0
IV.QLNO.HHZ. 2021-04-01T17:44:45.48 3.0 undecidable manual Pn 3.71 0
SL.BOJS.BHZ. 2021-04-01T17:44:44.02 3.0 undecidable manual Pn 1.07 0
IV.MNTP.HNZ. 2021-04-01T17:44:37.60 3.0 undecidable manual S 1.48 0
IV.MF5.EHZ. 2021-04-01T17:44:32.00 3.0 undecidable manual S -5.99 0
IV.RMP.HHZ. 2021-04-01T17:44:29.04 3.0 negative manual Pn -1.06 0
IV.CRTC.HHZ. 2021-04-01T17:44:14.73 3.0 undecidable manual S -3.22 0
IV.FRON.EHZ. 2021-04-01T17:44:13.37 0.3 undecidable manual S 69 31.0467 102 -0.44 65
IV.NARO.HHZ. 2021-04-01T17:44:12.35 0.1 undecidable manual S 39 27.5502 103 -0.28 91
IV.PIEI.HHZ. 2021-04-01T17:44:10.04 0.3 undecidable manual S 46 18.9699 109 0.3 69
IV.MURB.HHZ. 2021-04-01T17:44:10.98 3.0 undecidable manual S 0
IV.ATBU.HNZ. 2021-04-01T17:44:09.33 0.3 undecidable manual S 66 16.0728 112 0.52 66
IV.CAFI.HHZ. 2021-04-01T17:44:09.81 3.0 undecidable manual S -2.46 0
IV.ATVA.EHZ. 2021-04-01T17:44:09.32 3.0 undecidable manual S 0
IV.ATFO.HHZ. 2021-04-01T17:44:09.30 0.1 undecidable manual S 109 17.4714 110 0.04 97
IV.APEC.HHZ. 2021-04-01T17:44:09.51 3.0 undecidable manual S 0
IV.CSNT.HHZ. 2021-04-01T17:44:09.41 3.0 negative manual Pg -0.97 0
IV.NARO.HHZ. 2021-04-01T17:44:08.19 0.3 undecidable manual P 39 27.5502 103 -0.29 68
IV.FRON.EHZ. 2021-04-01T17:44:08.83 0.1 undecidable manual P 69 31.0467 102 -0.33 89
IV.MURB.HHZ. 2021-04-01T17:44:07.08 3.0 undecidable manual P 0
IV.ATLO.HNE. 2021-04-01T17:44:07.47 0.3 undecidable manual S 164 11.7771 118 0.01 74
IV.ATPC.HHZ. 2021-04-01T17:44:07.39 0.3 undecidable manual S 46 10.1787 122 0.41 68
IV.PIEI.HHZ. 2021-04-01T17:44:06.95 0.3 undecidable manual P 46 18.9699 109 0.14 71
IV.ATBU.HNZ. 2021-04-01T17:44:06.50 0.1 undecidable manual P 66 16.0728 112 0.23 94
IV.TB02.DHZ.01 2021-04-01T17:44:06.03 0.1 undecidable manual S 146 6.1938 136 0.13 97
IV.ATVA.EHZ. 2021-04-01T17:44:06.62 3.0 undecidable manual P 0
IV.ATFO.HHZ. 2021-04-01T17:44:06.45 0.3 undecidable manual P 109 17.4714 110 -0.09 72
IV.APEC.HHZ. 2021-04-01T17:44:06.30 3.0 undecidable manual P 0
IV.TB01.DHN.01 2021-04-01T17:44:05.96 0.1 undecidable manual S 125 6.8931 133 -0.1 98
IV.ATPC.HHZ. 2021-04-01T17:44:05.44 0.3 undecidable manual P 46 10.1787 122 0.23 71
IV.ATMI.HHZ. 2021-04-01T17:44:05.87 3.0 negative manual P 0.24 0
IV.TB03.DHZ.01 2021-04-01T17:44:05.14 0.1 undecidable manual S 116 3.996 148 -0.28 95
IV.ATPI.EHZ. 2021-04-01T17:44:05.38 0.1 undecidable manual S 38 4.6953 143 -0.19 96
IV.ATLO.HNE. 2021-04-01T17:44:05.53 0.1 undecidable manual P 164 11.7771 118 0.04 98
IV.TB01.DHN.01 2021-04-01T17:44:04.73 0.1 undecidable manual P 125 6.8931 133 0.05 99
IV.TB03.DHZ.01 2021-04-01T17:44:04.30 0.1 undecidable manual P 116 3.996 148 -0.01 100
IV.ATPI.EHZ. 2021-04-01T17:44:04.40 0.1 undecidable manual P 38 4.6953 143 0 100
IV.TB02.DHZ.01 2021-04-01T17:44:04.74 0.3 undecidable manual P 146 6.1938 136 0.14 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.EHN. ML:1.2 0.000262 0.28 AML other m 2021-04-01T17:44:05.51
IV.ATPI.EHE. ML:1.0 0.000179 0.42 AML other m 2021-04-01T17:44:05.64
IV.PIEI.HHN. ML:0.8 0.0000582 0.16 AML other m 2021-04-01T17:44:10.55
IV.PIEI.HHE. ML:0.8 0.00005625 0.18 AML other m 2021-04-01T17:44:10.64
IV.NARO.HHN. ML:0.4 0.0000128 0.42 AML other m 2021-04-01T17:44:12.67
IV.NARO.HHE. ML:0.4 0.000013975 0.9 AML other m 2021-04-01T17:44:12.98
IV.FRON.EHE. ML:0.6 0.0000189 0.1 AML other m 2021-04-01T17:44:13.71
IV.FRON.EHN. ML:0.9 0.000034049999999999994 0.12 AML other m 2021-04-01T17:44:13.81
IV.CRTC.HHN. ML:1.4 0.00005595 0.16 AML other m 2021-04-01T17:44:32.63
IV.CRTC.HHE. ML:1.4 0.0000521 0.72 AML other m 2021-04-01T17:44:33.34
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