Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 20-06-2020 and time 07:42:00 (UTC) in region 4 km W Amatrice (RI)

A magnitude ML 0.6 earthquake occured in region: 4 km W Amatrice (RI), on

  • 20-06-2020 07:42:00 (UTC)
  • 20-06-2020 09:42:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6460, 13.2490 at 13 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
Amatrice RI 4 2657 2657
Accumoli RI 6 667 3324
Cittareale RI 8 482 3806
Montereale AQ 14 2581 6387
Campotosto AQ 14 542 6929
Capitignano AQ 15 665 7594
Arquata del Tronto AP 15 1178 8772
Borbona RI 18 617 9389
Posta RI 18 694 10083
Acquasanta Terme AP 19 2916 12999

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NW of L'Aquila (69753 inhabitants)
37 Km W of Teramo (54892 inhabitants)
50 Km E of Terni (111501 inhabitants)
56 Km SE of Foligno (57155 inhabitants)
75 Km W of Montesilvano (53738 inhabitants)
82 Km W of Pescara (121014 inhabitants)
82 Km W of Chieti (51815 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
87 Km SE of Perugia (166134 inhabitants)
97 Km E 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
Bulletin
Rev1000 		ML 0.6 2020-06-20
07:42:00		 42.6463 13.2492 13 2020-11-19
12:36:56		 Bollettino Sismico Italiano INGV 81730521
Reviewed
Rev100 		ML 0.6 2020-06-20
07:42:00		 42.644 13.243 13 2020-06-20
07:50:54		 Sala Sismica INGV-Roma 80334691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-20 07:42:00 ± 0.14
Latitude 42.6463 ± 0.0072
Longitude 13.2492 ± 0.0073
Depth (km) 13 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 81730521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 715
Semi-minor axis of confidence ellipse (meter) 548
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 192
Circular confidence region, given by single value of horizontal uncertainty (meter) 720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.26170
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 80334691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-20 07:50:54

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 81730521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-08-07 09:58:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BRES.EHZ. 2020-06-20T07:43:37.69 3.0 undecidable manual Sn 1.02 0
IV.IFIL.HHZ. 2020-06-20T07:43:35.15 3.0 undecidable manual Sn -1.79 0
IV.PAOL.HHZ. 2020-06-20T07:43:16.75 3.0 undecidable manual Sg 15.73 0
IV.ORZI.HHZ. 2020-06-20T07:43:02.32 3.0 undecidable manual Sn -1.32 0
IV.PTRJ.HHZ. 2020-06-20T07:42:56.18 3.0 undecidable manual Sn -1.71 0
IV.CRTO.HHZ. 2020-06-20T07:42:38.23 3.0 undecidable manual Pg 16 0
IV.MCRV.HHZ. 2020-06-20T07:42:37.37 3.0 negative manual Pg 7.78 0
IV.PTRJ.HHZ. 2020-06-20T07:42:30.72 3.0 undecidable manual Pg 9.96 0
IV.SFI.EHZ. 2020-06-20T07:42:29.99 3.0 undecidable manual Sn -2.57 0
IV.EUCT.HNZ. 2020-06-20T07:42:28.77 3.0 positive manual Pn 5.81 0
GU.CARD.HHZ. 2020-06-20T07:42:26.65 3.0 undecidable manual Sn -2.69 0
IV.ROSPO.HHZ. 2020-06-20T07:42:23.54 3.0 undecidable manual Pn 0.08 0
IV.MIDA.HHZ. 2020-06-20T07:42:12.59 3.0 undecidable manual Pn -4.57 0
IV.TERO.HHZ. 2020-06-20T07:42:10.80 0.3 undecidable manual S 95 29.0487 96 -0.21 71
IV.NRCA.HHZ. 2020-06-20T07:42:09.33 0.3 undecidable manual S 332 23.4543 99 -0.2 72
IV.RM33.EHZ. 2020-06-20T07:42:07.25 0.3 undecidable manual S 191 15.4734 112 -0.22 72
GU.CARD.HHZ. 2020-06-20T07:42:07.94 3.0 undecidable manual Pn 3.22 0
IV.TERO.HHZ. 2020-06-20T07:42:06.89 0.6 undecidable manual P 95 29.0487 96 0.21 47
IV.NRCA.HHZ. 2020-06-20T07:42:05.92 0.1 undecidable manual P 332 23.4543 99 0.09 98
IV.SMA1.EHZ. 2020-06-20T07:42:05.62 0.3 undecidable manual S 104 7.2927 142 -0.08 77
IV.RM33.EHZ. 2020-06-20T07:42:04.72 0.1 undecidable manual P 191 15.4734 112 0.09 100
IV.SMA1.EHZ. 2020-06-20T07:42:03.89 0.3 undecidable manual P 104 7.2927 142 0.28 72
IV.LAV9.HNZ. 2020-06-20T07:42:02.83 3.0 negative manual P 1.42 0
IV.ASQU.HHZ. 2020-06-20T07:41:59.41 3.0 undecidable manual Pn -5.55 0
IV.AGLI.HHZ. 2020-06-20T07:41:54.47 3.0 negative manual P -2.6 0
IV.TOLF.HHZ. 2020-06-20T07:41:53.26 3.0 positive manual P -0.25 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:0.8 0.00007121326999999999 0.2048 AML other m 2020-06-20T07:42:05.97
IV.SMA1.EHE. ML:1.1 0.00016445795 0.224 AML other m 2020-06-20T07:42:06.13
IV.RM33.EHN. ML:0.4 0.00002001233 0.1216 AML other m 2020-06-20T07:42:07.53
IV.RM33.EHE. ML:0.6 0.000030894065 0.2752 AML other m 2020-06-20T07:42:08.96
IV.NRCA.HHN. ML:0.8 0.00003797418 0.1024 AML other m 2020-06-20T07:42:09.49
IV.NRCA.HHE. ML:1.1 0.00006784117500000001 0.1984 AML other m 2020-06-20T07:42:09.60
IV.TERO.HHE. ML:0.0 0.0000068122184999999995 0.064 AML other m 2020-06-20T07:42:10.96
IV.TERO.HHN. ML:0.3 0.00001177686 0.0576 AML other m 2020-06-20T07:42:10.94
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