Earthquake with magnitude of ML 1.0 on date 10-08-2020 and time 17:43:49 (Italy) in region 4 km NE Cittareale (RI)

A magnitude ML 1.0 earthquake occured in region: 4 km NE Cittareale (RI), on

  • 10-08-2020 15:43:49 (UTC)
  • 10-08-2020 17:43:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.65, 13.19 at 15 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
Cittareale RI 4 482 482
Accumoli RI 7 667 1149
Amatrice RI 8 2657 3806
Montereale AQ 15 2581 6387
Borbona RI 16 617 7004
Posta RI 16 694 7698
Arquata del Tronto AP 16 1178 8876
Cascia PG 16 3217 12093
Capitignano AQ 17 665 12758
Campotosto AQ 18 542 13300
Norcia PG 18 4957 18257
Monteleone di Spoleto PG 20 599 18856

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of L'Aquila (69753 inhabitants)
42 Km W of Teramo (54892 inhabitants)
46 Km E of Terni (111501 inhabitants)
52 Km SE of Foligno (57155 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
82 Km NE of Guidonia Montecelio (88673 inhabitants)
83 Km NE of Tivoli (56533 inhabitants)
83 Km SE of Perugia (166134 inhabitants)
86 Km W of Pescara (121014 inhabitants)
87 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 1.0 2020-08-10
15:43:49
42.65 13.19 15 2020-08-10
15:57:31
Sala Sismica INGV-Roma 81850321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-10 15:43:49 ± 0.11
Latitude 42.65 ± 0.01
Longitude 13.19 ± 0.01
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81850321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 592
Semi-minor axis of confidence ellipse (meter) 524
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 6
Circular confidence region, given by single value of horizontal uncertainty (meter) 590
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.30487
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 81850321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-10 15:57:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
CH.DAVOX.HHZ. 2020-08-10T15:46:10.82 3.0 undecidable manual Sg 3.73 0
GU.ROTM.HHZ. 2020-08-10T15:46:03.05 3.0 undecidable manual Sg 11.23 0
IV.SCIAC.HHZ. 2020-08-10T15:46:03.78 3.0 undecidable manual Sn -4.66 0
IV.BRMO.HHZ. 2020-08-10T15:46:01.54 3.0 undecidable manual Sg 5.06 0
IV.ECTS.HHZ. 2020-08-10T15:46:00.78 3.0 undecidable manual Sn -3.52 0
GU.CANO.HHZ. 2020-08-10T15:45:56.27 3.0 undecidable manual Sg 9.79 0
XK.GIZZ.HHZ. 2020-08-10T15:45:42.06 3.0 undecidable manual Sn -5.81 0
IV.ZONE.HHZ. 2020-08-10T15:45:37.99 3.0 undecidable manual Sn -6.19 0
IV.TDS.HHZ. 2020-08-10T15:45:35.89 3.0 undecidable manual Sn 0.39 0
IV.NOCI.HHZ. 2020-08-10T15:45:34.82 3.0 undecidable manual Sg 8.06 0
IV.EMSG.HHZ. 2020-08-10T15:45:14.98 3.0 negative manual Pg 7.87 0
XK.GIZZ.HHZ. 2020-08-10T15:45:10.23 3.0 positive manual Pg 12.68 0
MN.TIP.HHZ. 2020-08-10T15:45:09.66 3.0 positive manual Pg 11.1 0
IV.SERS.HHZ. 2020-08-10T15:45:07.12 3.0 positive manual Pg 7.4 0
GU.RRL.HHZ. 2020-08-10T15:45:07.84 3.0 undecidable manual Pn -5.91 0
IV.TDS.HHZ. 2020-08-10T15:44:55.66 3.0 undecidable manual Pg 5.06 0
IV.CAR1.HHZ. 2020-08-10T15:44:54.15 3.0 positive manual Pn -0.23 0
SI.BOSI.HHZ. 2020-08-10T15:44:52.89 3.0 positive manual Pn -5.95 0
IV.FIR.HHZ. 2020-08-10T15:44:46.66 3.0 undecidable manual Sn -8.31 0
IV.RIBO.EHZ.01 2020-08-10T15:44:44.04 3.0 undecidable manual Sg -5.12 0
IV.NDIM.HNZ. 2020-08-10T15:44:39.67 3.0 undecidable manual Pg -1.65 0
IV.RMP.HHZ. 2020-08-10T15:44:19.61 3.0 undecidable manual S -4.97 0
IV.PE3.EHZ. 2020-08-10T15:44:10.04 3.0 undecidable manual P -8.97 0
IV.PIEI.HHZ. 2020-08-10T15:44:06.19 3.0 positive manual Pg -9.99 0
IV.LPEL.HHZ. 2020-08-10T15:44:05.08 3.0 undecidable manual P 0
IV.TERO.HHZ. 2020-08-10T15:44:00.39 0.6 undecidable manual S 95 0.3049 101 -0.23 46
IV.NRCA.HHN. 2020-08-10T15:43:57.36 0.6 undecidable manual S 343 0.1925 111 -0.06 48
IV.MTRA.EHN. 2020-08-10T15:43:56.96 0.3 undecidable manual S 54 0.1853 113 -0.25 70
IV.TERO.HHZ. 2020-08-10T15:43:55.82 0.1 undecidable manual P 95 0.3049 101 0.1 95
IV.SMA1.EHZ. 2020-08-10T15:43:55.25 0.3 undecidable manual S 100 0.1079 132 -0.01 75
IV.RM33.EHZ. 2020-08-10T15:43:55.75 0.3 undecidable manual S 173 0.1412 122 -0.31 70
IV.MTRA.EHN. 2020-08-10T15:43:53.91 0.1 undecidable manual P 54 0.1853 113 0.15 96
IV.RM33.EHZ. 2020-08-10T15:43:53.18 0.1 undecidable manual P 173 0.1412 122 0.09 98
IV.NRCA.HHN. 2020-08-10T15:43:53.84 0.1 undecidable manual P 343 0.1925 111 -0.04 97
IV.SMA1.EHZ. 2020-08-10T15:43:52.87 0.1 undecidable manual P 100 0.1079 132 0.24 96
IV.LNSS.HHZ. 2020-08-10T15:43:52.85 0.1 undecidable manual P 247 0.1205 128 0.05 100
IV.CAMP.HHZ. 2020-08-10T15:43:50.62 3.0 undecidable manual S 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.4 0.00024234775 0.3584 AML other m 2020-08-10T15:43:55.49
IV.SMA1.EHN. ML:1 9.441831E-5 0.2176 AML other m 2020-08-10T15:43:55.64
IV.RM33.HNE. ML:1.3 0.0001499071 4.3648 AML other m 2020-08-10T15:43:57.38
IV.RM33.HNN. ML:1 6.866619E-5 2.56 AML other m 2020-08-10T15:43:56.19
IV.RM33.EHE. ML:0.8 4.7184765E-5 1.3952 AML other m 2020-08-10T15:43:56.56
IV.RM33.EHN. ML:0.7 3.7576125E-5 0.1408 AML other m 2020-08-10T15:43:56.42
IV.TERO.HHE. ML:0.7 2.027244E-5 0.7552 AML other m 2020-08-10T15:44:01.54
IV.TERO.HHN. ML:0.7 2.130299E-5 1.5872 AML other m 2020-08-10T15:44:01.35
IV.TERO.HNE. ML:1.5 0.000125543 0.8192 AML other m 2020-08-10T15:44:01.95
IV.TERO.HNN. ML:1.6 0.0001565681 1.1264 AML other m 2020-08-10T15:44:00.13
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