Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 20-06-2020 and time 21:14:55 (UTC) in region 5 km NW Preci (PG)

A magnitude ML 1.0 earthquake occured in region: 5 km NW Preci (PG), on

  • 20-06-2020 21:14:55 (UTC)
  • 20-06-2020 23:14:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9240, 13.0210 at 11 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
Preci PG 5 724 724
Visso MC 6 1107 1831
Monte Cavallo MC 8 145 1976
Sellano PG 9 1079 3055
Ussita MC 10 444 3499
Castelsantangelo sul Nera MC 11 281 3780
Pieve Torina MC 14 1458 5238
Fiordimonte MC 14 202 5440
Cerreto di Spoleto PG 14 1075 6515
Norcia PG 16 4957 11472
Pievebovigliana MC 16 866 12338
Fiastra MC 17 559 12897
Acquacanina MC 17 121 13018
Serravalle di Chienti MC 18 1070 14088
Muccia MC 18 915 15003
Bolognola MC 19 142 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km E of Foligno (57155 inhabitants)
51 Km NE of Terni (111501 inhabitants)
55 Km E of Perugia (166134 inhabitants)
63 Km W of Teramo (54892 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 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 1.0 2020-06-20
21:14:55		 42.9237 13.0213 11 2020-06-20
21:27:11		 Sala Sismica INGV-Roma 80356831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-20 21:14:55 ± 0.07
Latitude 42.9237 ± 0.0036
Longitude 13.0213 ± 0.0049
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80356831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 484
Semi-minor axis of confidence ellipse (meter) 108
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 230
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 171
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.24821
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 80356831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-20 21:27:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SI.ROSI.HHZ. 2020-06-20T21:16:42.50 3.0 undecidable manual Sg 7.5 0
IV.MTMR.EHZ. 2020-06-20T21:16:09.23 3.0 undecidable manual Sg 6.85 0
IV.MSAG.HHZ. 2020-06-20T21:16:02.60 3.0 undecidable manual Sn 1.93 0
XK.GIZZ.HHZ. 2020-06-20T21:15:59.35 3.0 negative manual Pn 0.25 0
CR.ZAG.BHZ. 2020-06-20T21:15:42.74 3.0 undecidable manual Pg 1.11 0
IV.ZCCA.HHZ. 2020-06-20T21:15:40.48 3.0 undecidable manual Sn -5.47 0
IV.MRLC.HHZ. 2020-06-20T21:15:40.21 3.0 negative manual Pg 5.26 0
IV.MAON.HHZ. 2020-06-20T21:15:39.00 3.0 undecidable manual Sg 2.33 0
IV.RMP.HHZ. 2020-06-20T21:15:38.83 3.0 undecidable manual Sg 7.05 0
CR.STON.BHZ. 2020-06-20T21:15:38.82 3.0 negative manual Pn -2.59 0
IT.FIE.HGZ. 2020-06-20T21:15:30.49 3.0 undecidable manual Sn -4.26 0
IV.PAOL.HHZ. 2020-06-20T21:15:28.32 3.0 negative manual Pg 1.56 0
IV.PTRJ.HNZ. 2020-06-20T21:15:28.25 3.0 undecidable manual Pg 5.41 0
IV.PF6.EHZ. 2020-06-20T21:15:05.42 0.6 undecidable manual S 30 27.5502 90 0.11 47
IV.CSP1.EHZ. 2020-06-20T21:15:04.22 0.6 undecidable manual S 39 23.8539 90 -0.1 49
IV.MMO1.EHZ. 2020-06-20T21:15:04.50 0.6 undecidable manual S 96 24.9528 90 -0.11 49
IV.MML1.HNN. 2020-06-20T21:15:03.55 0.3 undecidable manual S 349 21.4674 90 -0.13 72
IV.FDMO.HHZ. 2020-06-20T21:15:01.35 0.6 undecidable manual S 23 13.5753 95 -0.23 48
IV.CRTC.HHZ. 2020-06-20T21:15:01.25 3.0 positive manual P -5.42 0
IV.PF6.EHZ. 2020-06-20T21:15:01.11 0.6 undecidable manual P 30 27.5502 90 -0.05 48
IV.CESI.HHZ. 2020-06-20T21:15:01.49 0.6 undecidable manual S 314 13.0758 100 0.05 50
IV.ATPI.EHZ. 2020-06-20T21:15:00.33 3.0 positive manual P -5.29 0
IV.MML1.HNN. 2020-06-20T21:15:00.19 0.3 undecidable manual P 349 21.4674 90 -0.03 73
IV.CSP1.EHZ. 2020-06-20T21:15:00.64 1.0 positive manual P 39 23.8539 90 0.05 24
IV.NRCA.HHZ. 2020-06-20T21:15:00.96 0.6 undecidable manual S 143 12.5763 104 -0.34 46
IV.MMO1.EHZ. 2020-06-20T21:15:00.65 0.6 positive manual P 96 24.9528 90 -0.11 48
IV.MC2.EHE. 2020-06-20T21:14:59.41 0.3 undecidable manual P 96 13.6752 95 0.39 69
IV.FDMO.HHZ. 2020-06-20T21:14:59.03 0.3 negative manual P 23 13.5753 95 0.02 74
IT.MTCL.HGE. 2020-06-20T21:14:59.96 0.1 undecidable manual S 347 7.9809 131 -0.28 95
IV.CESI.HHZ. 2020-06-20T21:14:59.04 0.1 positive manual P 314 13.0758 100 0.11 99
IV.FEMA.HNE. 2020-06-20T21:14:59.92 0.6 undecidable manual S 28 4.8951 149 0.22 48
IV.FEMA.HNE. 2020-06-20T21:14:58.12 0.1 negative manual P 28 4.8951 149 0.2 98
IV.NRCA.HHZ. 2020-06-20T21:14:58.79 0.1 positive manual P 143 12.5763 104 -0.06 98
IT.MTCL.HGE. 2020-06-20T21:14:58.30 0.1 undecidable manual P 347 7.9809 131 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.2 0.00017938385000000002 0.0768 AML other m 2020-06-20T21:15:01.40
IV.NRCA.HHN. ML:1.4 0.00025995825 0.1024 AML other m 2020-06-20T21:15:01.11
IV.NRCA.HNE. ML:1.2 0.00017741595 0.0896 AML other m 2020-06-20T21:15:01.39
IV.NRCA.HNN. ML:1.4 0.00024265864999999998 0.1024 AML other m 2020-06-20T21:15:01.06
IV.FDMO.HHE. ML:0.7 0.00004610074 0.1408 AML other m 2020-06-20T21:15:01.77
IV.FDMO.HHN. ML:0.3 0.000021046925000000002 0.1536 AML other m 2020-06-20T21:15:01.77
IV.CESI.HNE. ML:1.0 0.00008838695900000001 0.4736 AML other m 2020-06-20T21:15:14.04
IV.CESI.HNN. ML:1.2 0.00016321008 0.384 AML other m 2020-06-20T21:15:10.94
IV.CESI.HHE. ML:0.8 0.000062039385 0.1664 AML other m 2020-06-20T21:15:01.52
IV.CESI.HHN. ML:1.0 0.00010110131999999999 0.1536 AML other m 2020-06-20T21:15:01.70
IV.ATPI.EHE. ML:0.8 0.000009106347500000001 1.0624 AML other m 2020-06-20T21:15:01.64
IV.CSP1.EHE. ML:0.5 0.000019202919999999997 1.8048 AML other m 2020-06-20T21:15:19.69
IV.CSP1.EHN. ML:0.4 0.000017063102 1.024 AML other m 2020-06-20T21:15:13.63
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