Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 11-06-2021 and time 08:26:30 (Italy) in region 6 km NE Cittareale (RI)

A magnitude ML 0.9 earthquake occured in region: 6 km NE Cittareale (RI), on

  • 11-06-2021 06:26:30 (UTC)
  • 11-06-2021 08:26:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6490, 13.2150 at 13 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.

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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
Cittareale RI 6 482 482
Accumoli RI 6 667 1149
Amatrice RI 6 2657 3806
Montereale AQ 14 2581 6387
Arquata del Tronto AP 15 1178 7565
Capitignano AQ 16 665 8230
Campotosto AQ 16 542 8772
Borbona RI 17 617 9389
Posta RI 17 694 10083
Cascia PG 18 3217 13300
Norcia PG 19 4957 18257

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of L'Aquila (69753 inhabitants)
40 Km W of Teramo (54892 inhabitants)
47 Km E of Terni (111501 inhabitants)
54 Km SE of Foligno (57155 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
83 Km NE of Tivoli (56533 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
84 Km W of Pescara (121014 inhabitants)
85 Km W of Chieti (51815 inhabitants)
94 Km E of Viterbo (67173 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 2021-06-11
06:26:30		 42.6492 13.2148 13 2021-12-29
11:12:51		 Bollettino Sismico Italiano INGV 97365151
Reviewed
Rev100 		ML 0.9 2021-06-11
06:26:29		 42.6482 13.2158 14 2021-06-11
06:37:19		 Sala Sismica INGV-Roma 91072981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-11 06:26:30 ± 0.16
Latitude 42.6492 ± 0.0045
Longitude 13.2148 ± 0.0061
Depth (km) 13 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97365151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 490
Semi-minor axis of confidence ellipse (meter) 58
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 50
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 12
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) 0.28688
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 91072981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-11 06:37:19

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 97365151
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-09 16:12:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.QLNO.HHZ. 2021-06-11T06:28:13.76 3.0 undecidable manual Sn 6.92 0
IV.CRND.HNZ. 2021-06-11T06:28:05.70 3.0 undecidable manual Sg 10.03 0
IV.CADC.HNZ. 2021-06-11T06:27:58.03 3.0 undecidable manual Sn -2.89 0
IV.SENA.HHZ. 2021-06-11T06:27:51.74 3.0 undecidable manual Sn -1.34 0
GU.BLANC.HHZ. 2021-06-11T06:27:48.72 3.0 undecidable manual Pn 4.77 0
IV.NDIM.HNZ. 2021-06-11T06:27:43.74 3.0 undecidable manual Sn 1.71 0
IV.TDS.HHZ. 2021-06-11T06:27:33.14 3.0 undecidable manual Pg 15.29 0
IV.ZEN8.HNZ. 2021-06-11T06:27:31.25 3.0 undecidable manual Pg 14.25 0
IV.MSAG.HHZ. 2021-06-11T06:27:27.39 3.0 undecidable manual Sn 2.75 0
IV.TREG.HNZ. 2021-06-11T06:27:26.71 3.0 undecidable manual Pg 12.97 0
IV.ERC.EHZ. 2021-06-11T06:27:24.01 3.0 undecidable manual Pn -3.57 0
GU.GSCL.HHZ. 2021-06-11T06:27:11.25 3.0 negative manual Pg 7.58 0
IV.RIBO.EHZ.01 2021-06-11T06:27:07.08 3.0 undecidable manual Sn -3.09 0
IV.PE3.EHZ. 2021-06-11T06:27:06.12 3.0 undecidable manual Sg 2.11 0
GU.GRAM.HHZ. 2021-06-11T06:27:04.47 3.0 negative manual Pn -4.2 0
IV.FIR.HHZ. 2021-06-11T06:27:01.77 3.0 positive manual Pg 8.19 0
IV.MSAG.HHZ. 2021-06-11T06:26:59.31 3.0 undecidable manual Pn 1.65 0
IV.CELB.HHZ. 2021-06-11T06:26:57.48 3.0 negative manual Pn 0.49 0
IV.IMOL.HNZ. 2021-06-11T06:26:56.70 3.0 negative manual Pn -0.39 0
IV.MCRV.HHZ. 2021-06-11T06:26:56.67 3.0 positive manual Pn -1.68 0
IV.FOSV.EHZ. 2021-06-11T06:26:54.22 3.0 undecidable manual Sn 0.14 0
IV.PP3.EHZ. 2021-06-11T06:26:53.46 3.0 undecidable manual Sn -3.18 0
IV.GATE.HHZ. 2021-06-11T06:26:49.68 3.0 positive manual Pn -0.21 0
IV.CESX.HHZ. 2021-06-11T06:26:45.96 3.0 undecidable manual P 0
IV.VAGA.HHZ. 2021-06-11T06:26:45.13 3.0 negative manual Pn -0.69 0
IV.CRE.HHZ. 2021-06-11T06:26:44.91 3.0 undecidable manual Pn -2.69 0
IV.TERO.HHZ. 2021-06-11T06:26:40.70 0.3 undecidable manual S 95 31.8459 95 -0.3 70
IV.MMO1.EHZ. 2021-06-11T06:26:40.51 3.0 undecidable manual S 0
IV.NRCA.HHZ. 2021-06-11T06:26:38.32 0.3 undecidable manual S 338 22.0668 101 -0.07 73
IV.MTRA.EHZ. 2021-06-11T06:26:37.34 0.3 undecidable manual S 51 19.0698 105 -0.27 71
IV.LNSS.HHZ. 2021-06-11T06:26:36.48 0.3 undecidable manual S 250 15.1737 113 -0.15 71
IV.RM33.EHZ. 2021-06-11T06:26:36.56 0.1 undecidable manual S 180 15.5733 112 -0.17 96
IV.TERO.HHZ. 2021-06-11T06:26:36.38 0.1 undecidable manual P 95 31.8459 95 0.03 96
IV.SMA1.EHE. 2021-06-11T06:26:35.58 0.3 undecidable manual S 102 10.0788 131 0.11 74
IV.MTRA.EHZ. 2021-06-11T06:26:34.48 0.1 undecidable manual P 51 19.0698 105 0.09 97
IV.NRCA.HHZ. 2021-06-11T06:26:34.92 0.1 undecidable manual P 338 22.0668 101 0.07 98
IV.RM33.EHZ. 2021-06-11T06:26:33.98 1.0 positive manual P 180 15.5733 112 0.09 25
IV.SMA1.EHE. 2021-06-11T06:26:33.52 0.1 undecidable manual P 102 10.0788 131 0.36 94
IV.LNSS.HHZ. 2021-06-11T06:26:33.88 0.1 undecidable manual P 250 15.1737 113 0.05 100
IV.GAVE.EHZ. 2021-06-11T06:26:32.09 3.0 undecidable manual Sg 0
IV.MMO1.EHZ. 2021-06-11T06:26:31.39 3.0 undecidable manual P 0
IV.GAVE.EHZ. 2021-06-11T06:26:30.70 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.0 0.0000799 0.36 AML other m 2021-06-11T06:26:36.59
IV.RM33.EHN. ML:0.9 0.0000625 0.24 AML other m 2021-06-11T06:26:36.72
IV.LNSS.HHE. ML:1.1 0.00010164999999999999 0.14 AML other m 2021-06-11T06:26:36.70
IV.RM33.EHE. ML:1.1 0.00009475 0.28 AML other m 2021-06-11T06:26:36.68
IV.NRCA.HHE. ML:0.9 0.0000443 0.18 AML other m 2021-06-11T06:26:38.63
IV.NRCA.HHN. ML:0.8 0.000034049999999999994 0.9 AML other m 2021-06-11T06:26:39.82
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