Earthquake with magnitude of ML 1.7 on date 02-08-2020 and time 10:12:39 (UTC) in region 7 km W Accumoli (RI)

A magnitude ML 1.7 earthquake occured in region: 7 km W Accumoli (RI), on

  • 02-08-2020 10:12:39 (UTC)
  • 02-08-2020 12:12:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.71, 13.17 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.

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 7 667 667
Cittareale RI 10 482 1149
Norcia PG 11 4957 6106
Cascia PG 12 3217 9323
Arquata del Tronto AP 13 1178 10501
Amatrice RI 13 2657 13158
Monteleone di Spoleto PG 19 599 13757
Poggiodomo PG 19 117 13874

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km NW of L'Aquila (69753 inhabitants)
45 Km W of Teramo (54892 inhabitants)
46 Km E of Terni (111501 inhabitants)
47 Km SE of Foligno (57155 inhabitants)
77 Km SE of Perugia (166134 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
87 Km NE of Guidonia Montecelio (88673 inhabitants)
88 Km NE of Tivoli (56533 inhabitants)
90 Km W of Pescara (121014 inhabitants)
91 Km W of Chieti (51815 inhabitants)
93 Km E of Viterbo (67173 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 1.7 2020-08-02
10:12:39
42.71 13.17 11 2020-08-02
10:22:36
Sala Sismica INGV-Roma 81574851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-02 10:12:39 ± 0.03
Latitude 42.71 ± 0.00
Longitude 13.17 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81574851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 230
Semi-minor axis of confidence ellipse (meter) 81
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 93
Circular confidence region, given by single value of horizontal uncertainty (meter) 230
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.6583
Number of stations at which the event was observed 40
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 81574851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-02 10:22:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
XK.GIZZ.HHZ. 2020-08-02T10:14:52.49 3.0 undecidable manual Sn -0.53 0
IV.SERS.HHZ. 2020-08-02T10:14:47.94 3.0 undecidable manual Sn -9.95 0
IV.ORI.HHZ. 2020-08-02T10:14:35.84 3.0 undecidable manual Sn -1.35 0
IV.LINA.HHZ. 2020-08-02T10:14:34.70 3.0 negative manual Pg 30 0
IV.PANTE.HHZ. 2020-08-02T10:14:11.27 3.0 undecidable manual Pg 20.790001 0
CR.ZAG.BHZ. 2020-08-02T10:14:05.38 3.0 undecidable manual Sn 2.35 0
IV.CAVT.HHZ. 2020-08-02T10:14:00.77 3.0 positive manual Pg 20.33 0
IV.MTTG.HHZ. 2020-08-02T10:13:55.20 3.0 undecidable manual Pn 6.31 0
IV.CRAC.EHZ. 2020-08-02T10:13:50.23 3.0 positive manual Pg 21.01 0
IV.LAV9.HNZ. 2020-08-02T10:13:40.36 3.0 undecidable manual Sg 17.459999 0
IV.VCEL.EHZ. 2020-08-02T10:13:22.43 3.0 undecidable manual Sn -3.28 0
IV.CESX.HHZ. 2020-08-02T10:13:17.86 3.0 undecidable manual Sg 11.91 0
GU.ROTM.HHZ. 2020-08-02T10:13:10.35 3.0 undecidable manual Sn 1.77 0
IV.TOLF.HHZ. 2020-08-02T10:13:07.99 3.0 undecidable manual Sn -1.25 0
IV.LPEL.HHZ. 2020-08-02T10:13:06.56 3.0 undecidable manual Pg 9.1 0
MN.TRI.HHZ. 2020-08-02T10:13:00.99 3.0 positive manual Pg 6.19 0
IV.MIDA.HHZ. 2020-08-02T10:12:56.73 3.0 negative manual Pn -4.57 0
IV.MCIV.CHZ. 2020-08-02T10:12:56.30 3.0 undecidable manual Sn 2.4 0
IV.FIAM.HHZ. 2020-08-02T10:12:55.25 0.6 undecidable manual S 185 0.4425 50 0.1 47
IV.CSP1.EHZ. 2020-08-02T10:12:53.50 0.6 undecidable manual S 4 0.3831 50 0.11 47
IV.T0110.HHZ. 2020-08-02T10:12:52.31 0.6 undecidable manual P 137 0.6583 50 0.09 45
IV.TERO.HHZ. 2020-08-02T10:12:51.76 0.6 undecidable manual S 105 0.3336 50 -0.16 47
IV.RIBO.EHZ.01 2020-08-02T10:12:51.22 3.0 undecidable manual Sn 3.87 0
IV.FDMO.HHZ. 2020-08-02T10:12:51.90 0.6 undecidable manual S 350 0.3318 50 0.03 49
IV.FIAM.HHZ. 2020-08-02T10:12:48.41 0.6 positive manual P 185 0.4425 50 -0.12 47
IV.MC2.EHZ. 2020-08-02T10:12:48.15 0.6 undecidable manual S 5 0.2023 50 0.11 49
IV.MMO1.EHZ. 2020-08-02T10:12:48.66 0.6 undecidable manual S 32 0.2239 50 0 50
IV.MTRA.EHZ. 2020-08-02T10:12:47.00 0.6 undecidable manual S 74 0.1763 119 -0.23 48
IV.GAVE.EHZ. 2020-08-02T10:12:47.68 0.6 undecidable manual S 265 0.1996 50 -0.28 47
IV.CSP1.EHZ. 2020-08-02T10:12:47.55 0.3 positive manual P 4 0.3831 50 0.04 72
IV.RM33.EHZ. 2020-08-02T10:12:47.93 0.6 undecidable manual S 170 0.2032 50 -0.14 49
IV.SMA1.EHZ. 2020-08-02T10:12:46.31 0.6 undecidable manual S 122 0.1475 123 0.02 51
IV.FDMO.HHZ. 2020-08-02T10:12:46.57 0.3 positive manual P 350 0.3318 50 -0.07 73
IV.TERO.HHZ. 2020-08-02T10:12:46.67 0.6 undecidable manual P 105 0.3336 50 0 49
IV.LNSS.HHZ. 2020-08-02T10:12:46.06 0.6 undecidable manual S 221 0.1412 124 -0.01 51
IV.NRCA.HNZ. 2020-08-02T10:12:45.39 0.6 undecidable manual S 343 0.1295 127 -0.33 48
IV.BRMO.HHZ. 2020-08-02T10:12:45.57 3.0 negative manual Pn -6.16 0
IV.GAVE.EHZ. 2020-08-02T10:12:44.41 1.0 positive manual P 265 0.1996 50 0.03 25
IV.MILN.HNZ. 2020-08-02T10:12:44.90 3.0 undecidable manual Pn 2.3 0
IV.RM33.EHZ. 2020-08-02T10:12:44.42 0.1 positive manual P 170 0.2032 50 -0.02 100
IV.MC2.EHZ. 2020-08-02T10:12:44.56 0.6 negative manual P 5 0.2023 50 0.13 49
IV.MTRA.EHZ. 2020-08-02T10:12:44.09 1.0 undecidable manual P 74 0.1763 119 0.13 25
IV.MMO1.EHZ. 2020-08-02T10:12:44.83 0.1 negative manual P 32 0.2239 50 0.04 99
IV.NRCA.HNZ. 2020-08-02T10:12:43.19 0.6 positive manual P 343 0.1295 127 0.1 50
IV.LNSS.HHZ. 2020-08-02T10:12:43.47 0.1 negative manual P 221 0.1412 124 0.17 98
IV.SMA1.EHZ. 2020-08-02T10:12:43.64 1.0 positive manual P 122 0.1475 123 0.22 24
IV.CAPR.HNZ. 2020-08-02T10:12:40.68 3.0 negative manual Pg -1.21 0
IV.OSSC.HHZ. 2020-08-02T10:12:40.40 3.0 undecidable manual S -1.56 0
IV.CRND.HNZ. 2020-08-02T10:12:39.91 3.0 undecidable manual Pn -6.26 0
IV.PE3.EHZ. 2020-08-02T10:12:37.76 3.0 undecidable manual Pg 2.67 0
IV.MTRZ.HNZ. 2020-08-02T10:12:28.57 3.0 undecidable manual Pn -0.8 0
IV.SFI.EHZ. 2020-08-02T10:12:27.11 3.0 undecidable manual P -3.22 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.OSSC.HHN. ML:2.1 4.59E-5 0.68 AML other m 2020-08-02T10:12:29.25
IV.OSSC.HHE. ML:2.1 4.65E-5 0.68 AML other m 2020-08-02T10:12:29.26
IV.MTRZ.HNN. ML:3.7 0.0012805 0.52 AML other m 2020-08-02T10:12:44.09
IV.MTRZ.HNE. ML:3.3 0.0005395 1.26 AML other m 2020-08-02T10:12:44.98
IV.NRCA.HHE. ML:2.1 0.001335 0.16 AML other m 2020-08-02T10:12:45.65
IV.NRCA.HNE. ML:2.1 0.001295 0.16 AML other m 2020-08-02T10:12:45.65
IV.NRCA.HHN. ML:2.1 0.001285 0.6 AML other m 2020-08-02T10:12:45.95
IV.NRCA.HNN. ML:2 0.001017 0.58 AML other m 2020-08-02T10:12:45.95
IV.LNSS.HHE. ML:2.2 0.001302 0.16 AML other m 2020-08-02T10:12:46.25
IV.LNSS.HHN. ML:2.2 0.00147 0.3 AML other m 2020-08-02T10:12:46.53
IV.SMA1.EHE. ML:1.9 0.0007015 0.42 AML other m 2020-08-02T10:12:47.08
IV.SMA1.EHN. ML:1.9 0.000728 1.58 AML other m 2020-08-02T10:12:47.16
IV.MTRA.EHE. ML:1.6 0.0002975 1.2 AML other m 2020-08-02T10:12:47.90
IV.MTRA.EHN. ML:1.4 0.0002045 0.7 AML other m 2020-08-02T10:12:47.44
IV.GAVE.EHN. ML:1.6 0.000293 0.46 AML other m 2020-08-02T10:12:48.16
IV.GAVE.EHE. ML:1.7 0.000319 0.78 AML other m 2020-08-02T10:12:48.57
IV.RM33.EHN. ML:1.7 0.000335 1.08 AML other m 2020-08-02T10:12:48.15
IV.RM33.EHE. ML:1.7 0.000304 1 AML other m 2020-08-02T10:12:49.93
IV.TERO.HHN. ML:1.5 0.0001315 0.22 AML other m 2020-08-02T10:12:52.74
IV.FDMO.HHN. ML:1.4 9.365E-5 0.62 AML other m 2020-08-02T10:12:52.48
IV.TERO.HHE. ML:1.5 0.0001185 1.18 AML other m 2020-08-02T10:12:52.85
IV.FDMO.HHE. ML:1.4 0.00010085 1.84 AML other m 2020-08-02T10:12:53.01
IV.FIAM.HHE. ML:1.2 3.89E-5 0.7 AML other m 2020-08-02T10:12:55.44
IV.FIAM.HHN. ML:1.1 3.62E-5 0.9 AML other m 2020-08-02T10:12:56.18
IV.T0110.HHN. ML:1.5 4.98E-5 0.72 AML other m 2020-08-02T10:13:05.12
IV.T0110.HHE. ML:1.5 4.475E-5 0.56 AML other m 2020-08-02T10:13:06.58
IV.LPEL.HHN. ML:1.4 2.2E-5 0.88 AML other m 2020-08-02T10:13:14.85
IV.LPEL.HHE. ML:1.6 2.915E-5 1.5 AML other m 2020-08-02T10:13:28.95
GU.ROTM.HHN. ML:4.8 0.002595 0.54 AML other m 2020-08-02T10:13:33.66
GU.ROTM.HHE. ML:4.9 0.003065 0.06 AML other m 2020-08-02T10:13:35.44
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