Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 09-06-2021 and time 13:07:12 (Italy) in region 5 km E Ussita (MC)

A magnitude ML 1.1 earthquake occured in region: 5 km E Ussita (MC), on

  • 09-06-2021 11:07:12 (UTC)
  • 09-06-2021 13:07:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9300, 13.1920 at 16 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
Ussita MC 5 444 444
Castelsantangelo sul Nera MC 5 281 725
Bolognola MC 8 142 867
Visso MC 8 1107 1974
Acquacanina MC 11 121 2095
Montemonaco AP 12 604 2699
Fiastra MC 12 559 3258
Montefortino FM 12 1178 4436
Preci PG 14 724 5160
Fiordimonte MC 15 202 5362
Amandola FM 15 3629 8991
Sarnano MC 15 3264 12255
Montegallo AP 15 523 12778
Monte Cavallo MC 17 145 12923
Pievebovigliana MC 17 866 13789
Pieve Torina MC 17 1458 15247
Norcia PG 17 4957 20204
Comunanza AP 18 3166 23370
Arquata del Tronto AP 19 1178 24548
Gualdo MC 20 815 25363

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
52 Km NW of Teramo (54892 inhabitants)
61 Km NE of Terni (111501 inhabitants)
67 Km N of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
91 Km NW of Montesilvano (53738 inhabitants)
98 Km NW of Pescara (121014 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 1.1 2021-06-09
11:07:12		 42.9303 13.1918 16 2021-12-29
11:12:10		 Bollettino Sismico Italiano INGV 92495721
Reviewed
Rev100 		ML 1.2 2021-06-09
11:07:12		 42.9285 13.1955 14 2021-06-09
11:15:04		 Sala Sismica INGV-Roma 90970131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-09 11:07:12 ± 0.06
Latitude 42.9303 ± 0.0027
Longitude 13.1918 ± 0.0037
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 92495721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 308
Semi-minor axis of confidence ellipse (meter) 101
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 192
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47304
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 92495721
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-09 11:54:23

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 13
Type of magnitude ML
Reference to an origin 90970131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-09 11:15:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LAV9.HNZ. 2021-06-09T11:07:44.71 3.0 undecidable manual Sn -0.86 0
IV.FIR.HHZ. 2021-06-09T11:07:33.31 3.0 positive manual Pn 0.06 0
IV.ASSB.HHZ. 2021-06-09T11:07:27.28 0.6 undecidable manual S 286 45.0216 98 0.34 44
IV.GAVE.EHZ. 2021-06-09T11:07:24.96 0.6 undecidable manual S 223 35.8419 101 0.44 44
IV.MML1.HNZ. 2021-06-09T11:07:22.36 0.6 undecidable manual S 319 27.0507 106 0.12 48
IV.CESI.HNZ. 2021-06-09T11:07:21.82 0.6 undecidable manual S 290 24.753 109 0.17 47
IV.MOMA.HHZ. 2021-06-09T11:07:21.52 0.1 undecidable manual P 255 52.503 96 -0.41 86
IV.MF5.EHZ. 2021-06-09T11:07:21.40 0.3 undecidable manual S 74 22.6551 111 0.27 70
IV.TERO.HHZ. 2021-06-09T11:07:21.22 0.6 undecidable manual P 135 47.8188 97 -0.01 47
IV.PF6.EHN. 2021-06-09T11:07:21.00 0.6 undecidable manual S 1 23.0547 111 -0.22 47
IV.MTRA.EHZ. 2021-06-09T11:07:21.67 0.3 undecidable manual S 139 25.4523 108 -0.16 71
IV.ASSB.HHZ. 2021-06-09T11:07:20.79 0.1 undecidable manual P 286 45.0216 98 0 94
IV.EL6.EHZ. 2021-06-09T11:07:20.92 0.6 undecidable manual P 351 44.8218 98 0.15 46
IV.GUMA.HNN. 2021-06-09T11:07:20.47 0.3 undecidable manual S 38 18.7701 117 0.29 70
IV.CSP1.EHZ. 2021-06-09T11:07:19.90 0.3 undecidable manual S 3 17.9709 119 -0.09 73
IV.GAVE.EHZ. 2021-06-09T11:07:19.45 0.1 undecidable manual P 223 35.8419 101 0.05 95
IT.MTCL.HGZ. 2021-06-09T11:07:19.61 0.3 undecidable manual S 294 17.1717 121 -0.19 72
IV.NRCA.HHZ. 2021-06-09T11:07:18.68 0.1 undecidable manual S 210 12.4764 132 -0.11 98
IV.FDMO.HHZ. 2021-06-09T11:07:18.91 0.3 undecidable manual S 324 14.4744 127 -0.31 70
IV.MML1.HNZ. 2021-06-09T11:07:18.10 0.3 undecidable manual P 319 27.0507 106 0.02 73
IV.MMO1.EHZ. 2021-06-09T11:07:18.27 0.3 undecidable manual S 107 11.4774 135 -0.34 70
IV.FEMA.HNZ. 2021-06-09T11:07:18.70 0.6 undecidable manual S 287 12.0768 133 -0.02 50
IV.PF6.EHN. 2021-06-09T11:07:17.27 0.1 undecidable manual P 1 23.0547 111 -0.22 94
IV.MTRA.EHZ. 2021-06-09T11:07:17.68 0.3 undecidable manual P 139 25.4523 108 -0.16 71
IV.CESI.HNZ. 2021-06-09T11:07:17.84 0.3 undecidable manual P 290 24.753 109 0.1 72
IV.MC2.EHZ. 2021-06-09T11:07:17.58 0.3 undecidable manual S 186 2.0979 171 0.13 74
IV.MF5.EHZ. 2021-06-09T11:07:17.58 0.3 undecidable manual P 74 22.6551 111 0.14 72
IV.FEMA.HNZ. 2021-06-09T11:07:16.00 0.1 undecidable manual P 287 12.0768 133 -0.05 99
IV.GUMA.HNN. 2021-06-09T11:07:16.98 0.3 undecidable manual P 38 18.7701 117 0.09 73
IV.NRCA.HHZ. 2021-06-09T11:07:16.19 0.1 undecidable manual P 210 12.4764 132 0.1 98
IV.FDMO.HHZ. 2021-06-09T11:07:16.40 0.3 undecidable manual P 324 14.4744 127 0.06 74
IV.CSP1.EHZ. 2021-06-09T11:07:16.83 0.3 positive manual P 3 17.9709 119 0.05 74
IT.MTCL.HGZ. 2021-06-09T11:07:16.68 0.3 undecidable manual P 294 17.1717 121 0.01 74
IV.MC2.EHZ. 2021-06-09T11:07:15.55 0.1 positive manual P 186 2.0979 171 0.24 97
IV.MMO1.EHZ. 2021-06-09T11:07:15.98 0.1 undecidable manual P 107 11.4774 135 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:1.2 0.0001175 0.22 AML other m 2021-06-09T11:07:19.20
IV.FDMO.HHE. ML:1.2 0.000124 0.42 AML other m 2021-06-09T11:07:19.04
IV.MTRA.EHE. ML:1.1 0.00006495 0.52 AML other m 2021-06-09T11:07:22.48
IV.MTRA.EHN. ML:1.0 0.0000488 0.68 AML other m 2021-06-09T11:07:23.29
IV.GAVE.EHE. ML:1.0 0.00003966500000000001 0.88 AML other m 2021-06-09T11:07:26.38
IV.GAVE.EHN. ML:1.0 0.00003395 0.42 AML other m 2021-06-09T11:07:27.14
IV.ASSB.HHN. ML:1.0 0.0000301 0.32 AML other m 2021-06-09T11:07:27.60
IV.ASSB.HHE. ML:0.9 0.0000273 1 AML other m 2021-06-09T11:07:28.08
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