Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 05-08-2020 and time 16:42:08 (Italy) in region 6 km SW Amatrice (RI)

A magnitude ML 1.0 earthquake occured in region: 6 km SW Amatrice (RI), on

  • 05-08-2020 14:42:08 (UTC)
  • 05-08-2020 16:42:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5890, 13.2510 at 12 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
Amatrice RI 6 2657 2657
Montereale AQ 7 2581 5238
Cittareale RI 8 482 5720
Capitignano AQ 9 665 6385
Campotosto AQ 10 542 6927
Accumoli RI 12 667 7594
Borbona RI 13 617 8211
Posta RI 15 694 8905
Cagnano Amiterno AQ 15 1369 10274
Barete AQ 16 737 11011
Pizzoli AQ 17 4326 15337
Crognaleto TE 19 1297 16634

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of L'Aquila (69753 inhabitants)
38 Km W of Teramo (54892 inhabitants)
50 Km E of Terni (111501 inhabitants)
61 Km SE of Foligno (57155 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
78 Km NE of Guidonia Montecelio (88673 inhabitants)
79 Km NE of Tivoli (56533 inhabitants)
80 Km W of Chieti (51815 inhabitants)
80 Km W of Pescara (121014 inhabitants)
91 Km SE of Perugia (166134 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
100 Km NE of Roma (2864731 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 2020-08-05
14:42:08		 42.589 13.2507 12 2020-08-05
14:48:02		 Sala Sismica INGV-Roma 81676941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-05 14:42:08 ± 0.18
Latitude 42.5890 ± 0.0081
Longitude 13.2507 ± 0.0073
Depth (km) 12 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81676941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 918
Semi-minor axis of confidence ellipse (meter) 428
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 207
Circular confidence region, given by single value of horizontal uncertainty (meter) 920.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
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 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 81676941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-05 14:48:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LAV9.HHZ. 2020-08-05T14:42:24.20 3.0 negative manual P -0.02 0
IV.TERO.HHZ. 2020-08-05T14:42:18.33 0.3 undecidable manual S 82 29.0487 94 -0.32 69
IV.MTRA.EHZ. 2020-08-05T14:42:16.64 0.3 undecidable manual S 33 22.0668 96 -0.15 72
IV.LNSS.HHZ. 2020-08-05T14:42:15.54 0.3 undecidable manual S 275 17.2716 102 0.03 75
IV.CAMP.HHZ. 2020-08-05T14:42:14.86 0.3 undecidable manual S 114 14.2746 110 0.12 73
IV.TERO.HHZ. 2020-08-05T14:42:14.44 0.3 undecidable manual P 82 29.0487 94 0.11 72
IV.MTRA.EHZ. 2020-08-05T14:42:13.29 0.1 undecidable manual P 33 22.0668 96 0.04 99
IV.RM33.EHZ. 2020-08-05T14:42:13.28 0.3 undecidable manual S 198 9.3795 130 -0.33 71
IV.LNSS.HHZ. 2020-08-05T14:42:12.60 0.1 undecidable manual P 275 17.2716 102 0.09 99
IV.CAMP.HHZ. 2020-08-05T14:42:12.25 0.3 undecidable manual P 114 14.2746 110 0.18 73
IV.RM33.EHZ. 2020-08-05T14:42:11.51 0.1 undecidable manual P 198 9.3795 130 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:1.0 0.00010799909999999999 0.2176 AML other m 2020-08-05T14:42:13.86
IV.RM33.EHN. ML:1.0 0.000107134515 0.1216 AML other m 2020-08-05T14:42:13.57
IV.RM33.HNE. ML:1.0 0.00010867138000000002 0.1088 AML other m 2020-08-05T14:42:13.85
IV.RM33.HNN. ML:1.1 0.00013930300000000002 0.4352 AML other m 2020-08-05T14:42:13.34
IV.LNSS.HHE. ML:0.7 0.000040647985 0.2816 AML other m 2020-08-05T14:42:15.81
IV.LNSS.HHN. ML:0.8 0.00004343129 0.4224 AML other m 2020-08-05T14:42:15.87
IV.LNSS.HNE. ML:1.2 0.00011712234 1.4336 AML other m 2020-08-05T14:42:23.56
IV.MTRA.EHN. ML:0.7 0.000032599185000000004 0.2624 AML other m 2020-08-05T14:42:17.07
IV.MTRA.HNE. ML:1.3 0.00011442685 0.6144 AML other m 2020-08-05T14:42:21.79
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