Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 13-06-2021 and time 01:05:00 (Italy) in region 6 km W Arquata del Tronto (AP)

A magnitude ML 0.9 earthquake occured in region: 6 km W Arquata del Tronto (AP), on

  • 12-06-2021 23:05:00 (UTC)
  • 13-06-2021 01:05:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7920, 13.2240 at 10 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.

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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
Arquata del Tronto AP 6 1178 1178
Montegallo AP 11 523 1701
Norcia PG 11 4957 6658
Accumoli RI 11 667 7325
Castelsantangelo sul Nera MC 13 281 7606
Montemonaco AP 15 604 8210
Acquasanta Terme AP 15 2916 11126
Preci PG 18 724 11850
Ussita MC 18 444 12294
Amatrice RI 19 2657 14951
Visso MC 19 1107 16058
Cascia PG 19 3217 19275
Montefortino FM 19 1178 20453
Cittareale RI 20 482 20935

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km W of Teramo (54892 inhabitants)
46 Km E of Foligno (57155 inhabitants)
51 Km N of L'Aquila (69753 inhabitants)
54 Km E of Terni (111501 inhabitants)
77 Km E of Perugia (166134 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
89 Km W of Pescara (121014 inhabitants)
92 Km NW of Chieti (51815 inhabitants)
95 Km S of Ancona (100861 inhabitants)
97 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km NE of Tivoli (56533 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
Reviewed
Rev100 		ML 0.9 2021-06-12
23:05:00		 42.792 13.224 11 2021-06-12
23:14:30		 Sala Sismica INGV-Roma 91190311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-12 23:05:00 ± 0.04
Latitude 42.7920 ± 0.0027
Longitude 13.2240 ± 0.0037
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 91190311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 294
Semi-minor axis of confidence ellipse (meter) 261
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 68
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
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) 0.09083
Epicentral distance of station farthest from the epicenter (degree) 0.32645
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.4
Num. used stations 14
Type of magnitude ML
Reference to an origin 91190311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-12 23:14:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2021-06-12T23:05:11.22 0.3 undecidable manual S 41 28.9488 50 0.46 66
IV.RM33.EHZ. 2021-06-12T23:05:11.55 0.3 undecidable manual S 181 31.4463 50 0.14 70
IV.GAVE.EHZ. 2021-06-12T23:05:10.79 0.3 undecidable manual S 248 29.0487 50 0 73
IV.LNSS.HHZ. 2021-06-12T23:05:09.97 0.3 undecidable manual S 216 25.752 50 0.06 72
IV.SMA1.EHZ. 2021-06-12T23:05:08.24 0.3 undecidable manual S 153 20.0688 118 -0.07 73
IV.T1299.HNZ. 2021-06-12T23:05:08.17 0.3 undecidable manual S 165 18.1707 120 0.45 67
IV.TERO.HHZ. 2021-06-12T23:05:07.35 0.3 undecidable manual P 121 36.2415 50 -0.17 69
IV.MF5.EHZ. 2021-06-12T23:05:06.41 0.3 undecidable manual P 41 28.9488 50 0.01 73
IV.MMO1.HNZ. 2021-06-12T23:05:06.54 0.3 undecidable manual S 35 14.5743 126 -0.14 73
IV.RM33.EHZ. 2021-06-12T23:05:06.59 0.3 undecidable manual P 181 31.4463 50 -0.18 70
IV.MC2.EHZ. 2021-06-12T23:05:06.54 0.3 undecidable manual S 348 13.5753 128 0.14 73
IV.GAVE.EHZ. 2021-06-12T23:05:06.28 0.3 undecidable manual P 248 29.0487 50 -0.13 71
IV.MTRA.EHZ. 2021-06-12T23:05:06.65 0.3 undecidable manual S 106 14.5743 126 -0.04 74
IV.LNSS.HHZ. 2021-06-12T23:05:05.68 0.3 undecidable manual P 216 25.752 50 -0.23 70
IV.NRCA.HHZ. 2021-06-12T23:05:05.61 0.3 undecidable manual S 297 10.0788 136 0.12 73
IV.SMA1.EHZ. 2021-06-12T23:05:04.85 0.3 undecidable manual P 153 20.0688 118 -0.14 72
IV.T1299.HNZ. 2021-06-12T23:05:04.79 0.3 undecidable manual P 165 18.1707 120 0.14 72
IV.MC2.EHZ. 2021-06-12T23:05:03.85 0.3 undecidable manual P 348 13.5753 128 -0.03 74
IV.MTRA.EHZ. 2021-06-12T23:05:03.98 0.3 undecidable manual P 106 14.5743 126 -0.07 73
IV.MMO1.HNZ. 2021-06-12T23:05:03.86 0.1 undecidable manual P 35 14.5743 126 -0.18 96
IV.NRCA.HHZ. 2021-06-12T23:05:03.37 0.1 undecidable manual P 297 10.0788 136 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.6 0.00044400000000000006 0.16 AML other m 2021-06-12T23:05:05.73
IV.NRCA.HHN. ML:1.5 0.00039362655 0.1024 AML other m 2021-06-12T23:05:06.21
IV.SMA1.EHE. ML:0.6 0.00002785 0.26 AML other m 2021-06-12T23:05:08.40
IV.SMA1.EHN. ML:0.3 0.000013965440000000001 0.1024 AML other m 2021-06-12T23:05:10.12
IV.RM33.EHN. ML:0.8 0.0000291 0.2 AML other m 2021-06-12T23:05:11.85
IV.RM33.EHE. ML:0.7 0.00002685 0.68 AML other m 2021-06-12T23:05:12.65
IV.NRCA.HNE. ML:1.6 0.0004449611 0.1664 AML other m 2021-06-12T23:05:05.81
IV.NRCA.HNN. ML:1.4 0.00034633205 0.0896 AML other m 2021-06-12T23:05:06.27
IV.MTRA.EHE. ML:0.8 0.00005342909 0.2304 AML other m 2021-06-12T23:05:07.37
IV.MTRA.EHN. ML:0.6 0.000034628014999999995 0.064 AML other m 2021-06-12T23:05:06.87
IV.GAVE.EHE. ML:1.0 0.000048021209999999994 0.1664 AML other m 2021-06-12T23:05:11.67
IV.GAVE.EHN. ML:0.9 0.000039687630000000005 0.1536 AML other m 2021-06-12T23:05:11.24
IV.TERO.HHE. ML:1.7 0.000185870735 0.4352 AML other m 2021-06-12T23:05:15.96
IV.TERO.HHN. ML:0.6 0.000013734864999999999 0.0768 AML other m 2021-06-12T23:05:13.39
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