Earthquake with magnitude of ML 0.9 on date 06-08-2020 and time 04:39:31 (UTC) in region 5 km E Accumoli (RI)

A magnitude ML 0.9 earthquake occured in region: 5 km E Accumoli (RI), on

  • 06-08-2020 04:39:31 (UTC)
  • 06-08-2020 06:39:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7040, 13.3070 at 14 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Accumoli RI 5 667 667
Arquata del Tronto AP 8 1178 1845
Amatrice RI 8 2657 4502
Acquasanta Terme AP 11 2916 7418
Cittareale RI 15 482 7900
Montegallo AP 16 523 8423
Valle Castellana TE 16 977 9400
Campotosto AQ 17 542 9942
Rocca Santa Maria TE 18 537 10479
Cortino TE 19 656 11135

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km W of Teramo (54892 inhabitants)
40 Km N of L'Aquila (69753 inhabitants)
56 Km E of Terni (111501 inhabitants)
57 Km SE of Foligno (57155 inhabitants)
72 Km W of Montesilvano (53738 inhabitants)
79 Km W of Pescara (121014 inhabitants)
81 Km W of Chieti (51815 inhabitants)
87 Km SE of Perugia (166134 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km NE of Tivoli (56533 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 0.9 2020-08-06
04:39:31
42.7035 13.3067 14 2020-11-19
12:37:04
Bollettino Sismico Italiano INGV 83808121
Reviewed
Rev100
ML 1.1 2020-08-06
04:39:31
42.706 13.3032 12 2020-08-06
04:47:10
Sala Sismica INGV-Roma 81692731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-06 04:39:31 ± 0.09
Latitude 42.7035 ± 0.0036
Longitude 13.3067 ± 0.0073
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83808121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 589
Semi-minor axis of confidence ellipse (meter) 113
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 68
Circular confidence region, given by single value of horizontal uncertainty (meter) 590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.07105
Epicentral distance of station farthest from the epicenter (degree) 0.30577
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 81692731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-06 04:47:10

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 83808121
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-15 16:20:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MC2.EHZ. 2020-08-06T04:39:40.87 0.3 undecidable manual S 338 24.9528 102 0.12 71
IV.RM33.EHZ. 2020-08-06T04:39:40.18 0.6 undecidable manual S 199 22.8549 104 -0.01 49
IV.TERO.HHZ. 2020-08-06T04:39:40.79 0.3 undecidable manual S 110 25.8519 101 -0.19 70
IV.NRCA.HHZ. 2020-08-06T04:39:39.44 0.6 undecidable manual S 313 21.2676 106 -0.35 46
IV.CAMP.HHZ. 2020-08-06T04:39:39.62 0.3 undecidable manual S 156 20.3685 107 0.05 73
IV.GAVE.EHZ. 2020-08-06T04:39:38.00 0.6 undecidable manual P 268 33.6441 97 -0.18 47
IV.MF5.EHN. 2020-08-06T04:39:38.52 0.6 undecidable manual P 21 33.9438 97 0.3 45
IV.TERO.HHZ. 2020-08-06T04:39:37.00 0.6 undecidable manual P 110 25.8519 101 0.01 49
IV.MC2.EHZ. 2020-08-06T04:39:37.10 0.3 undecidable manual P 338 24.9528 102 0.24 70
IV.RM33.EHZ. 2020-08-06T04:39:36.55 0.1 undecidable manual P 199 22.8549 104 0.01 98
IV.SMA1.EHZ. 2020-08-06T04:39:36.62 0.3 undecidable manual S 164 8.3805 140 -0.26 72
IV.CAMP.HHZ. 2020-08-06T04:39:36.42 0.3 undecidable manual P 156 20.3685 107 0.24 70
IV.LNSS.HHZ. 2020-08-06T04:39:36.49 0.1 undecidable manual P 243 24.4533 103 -0.28 93
IV.NRCA.HHZ. 2020-08-06T04:39:36.25 0.1 undecidable manual P 313 21.2676 106 -0.06 98
IV.MTRA.EHZ. 2020-08-06T04:39:36.57 0.6 undecidable manual S 51 9.3795 137 -0.48 45
IV.T1299.HNZ. 2020-08-06T04:39:36.79 0.3 undecidable manual S 195 7.881 142 0 75
IV.MTRA.EHZ. 2020-08-06T04:39:34.75 0.1 undecidable manual P 51 9.3795 137 0.03 100
IV.T1299.HNZ. 2020-08-06T04:39:34.96 0.3 undecidable manual P 195 7.881 142 0.38 70
IV.SMA1.EHZ. 2020-08-06T04:39:34.82 0.1 negative manual P 164 8.3805 140 0.2 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TERO.HHE. ML:0.8 0.0000363 1.08 AML other m 2020-08-06T04:39:41.10
IV.SMA1.EHN. ML:1.2 0.000154 0.2 AML other m 2020-08-06T04:39:36.76
IV.SMA1.EHE. ML:1.1 0.0001395 0.36 AML other m 2020-08-06T04:39:36.95
IV.TERO.HHN. ML:0.9 0.0000747 0.46 AML other m 2020-08-06T04:39:42.77
IV.RM33.EHE. ML:0.6 0.000024435775 0.72 AML other m 2020-08-06T04:39:40.71
IV.RM33.EHN. ML:0.6 0.000027028829999999996 0.56 AML other m 2020-08-06T04:39:40.68
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download