Earthquake with magnitude of ML 1.8 on date 20-08-2020 and time 06:07:10 (UTC) in region 5 km N Accumoli (RI)

A magnitude ML 1.8 earthquake occured in region: 5 km N Accumoli (RI), on

  • 20-08-2020 06:07:10 (UTC)
  • 20-08-2020 08:07:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.74, 13.24 at 7 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
Accumoli RI 5 667 667
Arquata del Tronto AP 6 1178 1845
Norcia PG 13 4957 6802
Amatrice RI 13 2657 9459
Montegallo AP 14 523 9982
Acquasanta Terme AP 14 2916 12898
Cittareale RI 15 482 13380
Castelsantangelo sul Nera MC 18 281 13661
Cascia PG 19 3217 16878
Montemonaco AP 19 604 17482

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km W of Teramo (54892 inhabitants)
45 Km N of L'Aquila (69753 inhabitants)
50 Km E of Foligno (57155 inhabitants)
52 Km E of Terni (111501 inhabitants)
79 Km W of Montesilvano (53738 inhabitants)
80 Km SE of Perugia (166134 inhabitants)
86 Km W of Pescara (121014 inhabitants)
88 Km NW of Chieti (51815 inhabitants)
93 Km NE of Guidonia Montecelio (88673 inhabitants)
94 Km NE of Tivoli (56533 inhabitants)
100 Km E of Viterbo (67173 inhabitants)
100 Km S of Ancona (100861 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.8 2020-08-20
06:07:10
42.74 13.24 7 2020-08-20
06:35:34
Sala Sismica INGV-Roma 82167371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-20 06:07:10 ± 0.07
Latitude 42.74 ± 0.00
Longitude 13.24 ± 0.00
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82167371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 347
Semi-minor axis of confidence ellipse (meter) 290
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 313
Circular confidence region, given by single value of horizontal uncertainty (meter) 350
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 36
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.62233
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 22
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 42
Type of magnitude ML
Reference to an origin 82167371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-20 06:35:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSNT.HHZ. 2020-08-20T06:08:03.62 3.0 undecidable manual Sg 2.53 0
IV.ROSPO.HHZ. 2020-08-20T06:07:54.34 3.0 undecidable manual S -0.71 0
IV.MCIV.CHZ. 2020-08-20T06:07:51.04 3.0 undecidable manual S 0.93 0
IV.ATCC.EHZ. 2020-08-20T06:07:33.20 0.3 undecidable manual S 315 0.6223 50 0.47 62
IV.EL6.EHZ. 2020-08-20T06:07:32.79 0.6 undecidable manual S 350 0.5945 50 0.88 35
IV.ASSB.HHZ. 2020-08-20T06:07:29.73 0.3 undecidable manual S 305 0.5198 50 0.03 70
IV.MOMA.HHZ. 2020-08-20T06:07:29.38 0.3 undecidable manual S 277 0.4946 50 0.43 64
IV.CESX.HHZ. 2020-08-20T06:07:28.16 0.6 undecidable manual S 255 0.4973 50 -0.88 36
IV.FIAM.HHZ. 2020-08-20T06:07:28.29 0.6 undecidable manual S 191 0.4829 50 -0.32 44
IV.OFFI.HHZ. 2020-08-20T06:07:27.06 0.6 undecidable manual S 59 0.3795 50 1.52 27
IV.ARRO.EHZ. 2020-08-20T06:07:25.44 0.6 undecidable manual S 245 0.3849 50 -0.25 46
IV.GUMA.HHZ. 2020-08-20T06:07:23.93 0.6 undecidable manual S 12 0.3274 101 0.11 47
IV.MF5.EHZ. 2020-08-20T06:07:23.38 0.6 undecidable manual S 33 0.2932 102 0.84 38
IV.ATCC.EHZ. 2020-08-20T06:07:23.36 0.6 undecidable manual P 315 0.6223 50 -0.18 44
IV.FDMO.HHZ. 2020-08-20T06:07:22.59 0.6 undecidable manual S 339 0.3139 102 -0.72 40
IV.EL6.EHZ. 2020-08-20T06:07:22.62 0.6 positive manual P 350 0.5945 50 -0.44 42
IV.VCEL.EHZ. 2020-08-20T06:07:22.92 1.0 undecidable manual P 128 0.563 50 0.39 21
IV.TERO.HHZ. 2020-08-20T06:07:21.80 0.6 undecidable manual S 114 0.2941 102 -0.76 40
IV.MOMA.HHZ. 2020-08-20T06:07:21.43 0.6 positive manual P 277 0.4946 50 0.08 46
IV.ASSB.HHZ. 2020-08-20T06:07:21.58 0.3 positive manual P 305 0.5198 50 -0.2 67
IV.GAVE.EHZ. 2020-08-20T06:07:21.56 0.6 undecidable manual S 259 0.2581 104 0.33 46
IV.MNTT.EHZ. 2020-08-20T06:07:20.19 1.0 negative manual P 39 0.4119 50 0.25 23
IV.RM33.EHZ. 2020-08-20T06:07:20.52 0.6 undecidable manual S 184 0.2347 105 0.17 48
IV.CESX.HHZ. 2020-08-20T06:07:20.87 0.1 undecidable manual P 255 0.4973 50 -0.54 83
IV.FIAM.HHZ. 2020-08-20T06:07:20.78 0.6 undecidable manual P 191 0.4829 50 -0.38 43
IV.OFFI.HHZ. 2020-08-20T06:07:19.60 0.3 negative manual P 59 0.3795 50 0.22 69
IV.LNSS.HHZ. 2020-08-20T06:07:19.77 0.3 undecidable manual S 226 0.2023 108 0.61 64
IV.ARRO.EHZ. 2020-08-20T06:07:19.00 0.6 positive manual P 245 0.3849 50 -0.47 43
IV.GUMA.HHZ. 2020-08-20T06:07:18.21 0.1 positive manual P 12 0.3274 101 -0.18 93
IV.MC2.EHZ. 2020-08-20T06:07:18.02 0.3 undecidable manual S 348 0.1727 111 -0.05 74
IV.FDMO.HHZ. 2020-08-20T06:07:17.57 0.6 undecidable manual P 339 0.3139 102 -0.53 43
IV.MMO1.EHZ. 2020-08-20T06:07:17.72 0.3 undecidable manual S 22 0.1691 111 -0.23 72
IV.TERO.HHZ. 2020-08-20T06:07:17.22 0.3 undecidable manual P 114 0.2941 102 -0.45 67
IV.MF5.EHZ. 2020-08-20T06:07:17.57 0.3 positive manual P 33 0.2932 102 -0.08 72
IV.RM33.EHZ. 2020-08-20T06:07:16.51 0.3 positive manual P 184 0.2347 105 0.12 72
IV.GAVE.EHZ. 2020-08-20T06:07:16.86 0.1 positive manual P 259 0.2581 104 -0.04 98
IV.MTRA.HNZ. 2020-08-20T06:07:16.00 0.6 undecidable manual S 83 0.116 119 -0.11 49
IV.NRCA.HHZ. 2020-08-20T06:07:16.51 0.6 undecidable manual S 315 0.1286 117 -0.01 50
IV.SMA1.EHZ. 2020-08-20T06:07:16.95 0.6 undecidable manual S 148 0.1331 116 0.28 48
IV.MC2.EHZ. 2020-08-20T06:07:15.09 0.1 undecidable manual P 348 0.1727 111 0.02 100
IV.LNSS.HHZ. 2020-08-20T06:07:15.97 0.1 positive manual P 226 0.2023 108 0.27 94
IV.NRCA.HHZ. 2020-08-20T06:07:14.29 0.1 positive manual P 315 0.1286 117 0.11 99
IV.SMA1.EHZ. 2020-08-20T06:07:14.53 0.3 negative manual P 148 0.1331 116 0.27 72
IV.MMO1.EHZ. 2020-08-20T06:07:14.81 1.0 undecidable manual P 22 0.1691 111 -0.19 24
IV.MTRA.HNZ. 2020-08-20T06:07:13.99 0.1 undecidable manual P 83 0.116 119 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.9 0.000946 0.72 AML other m 2020-08-20T06:07:16.91
IV.NRCA.HNN. ML:2.1 0.00127 1.52 AML other m 2020-08-20T06:07:17.22
IV.NRCA.HHN. ML:2 0.00124 1.5 AML other m 2020-08-20T06:07:17.23
IV.NRCA.HNE. ML:1.9 0.0009545 0.42 AML other m 2020-08-20T06:07:17.26
IV.NRCA.HHE. ML:2 0.001095 0.44 AML other m 2020-08-20T06:07:17.26
IV.MTRA.HNN. ML:1.9 0.001022 0.66 AML other m 2020-08-20T06:07:17.50
IV.MTRA.EHN. ML:1.9 0.0010635 0.66 AML other m 2020-08-20T06:07:17.50
IV.MTRA.HNE. ML:1.9 0.0009465 0.9 AML other m 2020-08-20T06:07:17.83
IV.LNSS.HHE. ML:2.1 0.000905 1.7 AML other m 2020-08-20T06:07:20.00
IV.LNSS.HHN. ML:2 0.000776 0.2 AML other m 2020-08-20T06:07:20.28
IV.RM33.EHN. ML:1.7 0.0003115 0.34 AML other m 2020-08-20T06:07:21.76
IV.GAVE.EHE. ML:2.2 0.00089 1.86 AML other m 2020-08-20T06:07:21.02
IV.TERO.HHN. ML:2 0.000484 1.7 AML other m 2020-08-20T06:07:21.14
IV.SMA1.EHN. ML:1.7 0.0005325 0.42 AML other m 2020-08-20T06:07:22.04
IV.TERO.HHE. ML:1.9 0.0003325 0.12 AML other m 2020-08-20T06:07:22.20
IV.RM33.EHE. ML:1.7 0.000289 1.28 AML other m 2020-08-20T06:07:22.80
IV.GAVE.EHN. ML:2 0.0005465 0.3 AML other m 2020-08-20T06:07:22.32
IV.SMA1.EHE. ML:1.6 0.000456 0.52 AML other m 2020-08-20T06:07:22.71
IV.FDMO.HHN. ML:1.6 0.000187 0.86 AML other m 2020-08-20T06:07:22.51
IV.MF5.EHE. ML:1.6 0.000172 0.3 AML other m 2020-08-20T06:07:23.82
IV.GUMA.HHE. ML:2.6 0.001645 0.32 AML other m 2020-08-20T06:07:24.42
IV.FDMO.HHE. ML:1.6 0.000165 0.18 AML other m 2020-08-20T06:07:24.86
IV.GUMA.HHN. ML:2.2 0.000735 0.68 AML other m 2020-08-20T06:07:24.87
IV.ARRO.EHE. ML:1.5 9.96E-5 0.74 AML other m 2020-08-20T06:07:26.41
IV.MF5.EHN. ML:1.6 0.0001749 0.42 AML other m 2020-08-20T06:07:27.02
IV.FIAM.HHN. ML:1.3 4.595E-5 0.26 AML other m 2020-08-20T06:07:28.46
IV.OFFI.HHN. ML:1.8 0.0001835 0.36 AML other m 2020-08-20T06:07:28.68
IV.FIAM.HHE. ML:1.5 7.635E-5 0.92 AML other m 2020-08-20T06:07:29.00
IV.ARRO.EHN. ML:1.5 0.00010445 0.92 AML other m 2020-08-20T06:07:29.61
IV.MOMA.HHN. ML:1.6 0.0001025 0.14 AML other m 2020-08-20T06:07:29.87
IV.MOMA.HHE. ML:1.9 0.0002005 0.16 AML other m 2020-08-20T06:07:30.26
IV.MNTT.EHN. ML:1.9 0.000227 0.9 AML other m 2020-08-20T06:07:30.59
IV.MNTT.EHE. ML:1.9 0.0002165 0.24 AML other m 2020-08-20T06:07:30.74
IV.ASSB.HHN. ML:1.5 6.425E-5 0.28 AML other m 2020-08-20T06:07:31.47
IV.ASSB.HHE. ML:1.4 5.715E-5 0.32 AML other m 2020-08-20T06:07:32.45
IV.OFFI.HHE. ML:1.7 0.0001765 0.44 AML other m 2020-08-20T06:07:33.46
IV.ATCC.EHN. ML:1.5 5.065E-5 1.42 AML other m 2020-08-20T06:07:34.22
IV.ATCC.EHE. ML:1.5 4.81E-5 1.18 AML other m 2020-08-20T06:07:34.35
IV.VCEL.EHN. ML:1.4 5.715E-5 1.02 AML other m 2020-08-20T06:07:40.77
IV.VCEL.EHE. ML:1.4 4.45E-5 0.62 AML other m 2020-08-20T06:07:43.45
IV.MCIV.CHE. ML:2 5.795E-5 0.12 AML other m 2020-08-20T06:07:57.35
IV.MCIV.CHN. ML:1.8 4.24E-5 0.24 AML other m 2020-08-20T06:07:57.30
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download