Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 09-07-2020 and time 17:57:05 (Italy) in region 6 km SE Leonessa (RI)

A magnitude ML 1.2 earthquake occured in region: 6 km SE Leonessa (RI), on

  • 09-07-2020 15:57:05 (UTC)
  • 09-07-2020 17:57:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5150, 12.9860 at 12 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
Leonessa RI 6 2435 2435
Poggio Bustone RI 8 2055 4490
Cantalice RI 8 2755 7245
Micigliano RI 9 127 7372
Posta RI 9 694 8066
Rivodutri RI 11 1253 9319
Borbona RI 12 617 9936
Morro Reatino RI 13 373 10309
Antrodoco RI 13 2588 12897
Borgo Velino RI 14 972 13869
Castel Sant'Angelo RI 14 1308 15177
Polino TR 14 233 15410
Cittaducale RI 15 6828 22238
Labro RI 15 374 22612
Monteleone di Spoleto PG 16 599 23211
Rieti RI 16 47698 70909
Colli sul Velino RI 17 533 71442
Cittareale RI 18 482 71924
Greccio RI 19 1558 73482
Arrone TR 19 2763 76245
Ferentillo TR 20 1913 78158

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Terni (111501 inhabitants)
39 Km W of L'Aquila (69753 inhabitants)
54 Km SE of Foligno (57155 inhabitants)
61 Km NE of Guidonia Montecelio (88673 inhabitants)
61 Km W of Teramo (54892 inhabitants)
63 Km N of Tivoli (56533 inhabitants)
73 Km E of Viterbo (67173 inhabitants)
81 Km NE of Roma (2864731 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
94 Km N of Velletri (53303 inhabitants)
96 Km W of Montesilvano (53738 inhabitants)
99 Km W of Chieti (51815 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 1.2 2020-07-09
15:57:05		 42.5148 12.9857 13 2020-07-09
16:04:56		 Sala Sismica INGV-Roma 80907621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-09 15:57:05 ± 0.21
Latitude 42.5148 ± 0.0081
Longitude 12.9857 ± 0.0122
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80907621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 901
Semi-minor axis of confidence ellipse (meter) 850
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 244
Circular confidence region, given by single value of horizontal uncertainty (meter) 900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 284
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 11
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) 0.46765
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 80907621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-09 16:04:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ILOS.HHZ. 2020-07-09T15:58:48.76 3.0 undecidable manual Sn -1.08 0
IV.ZONE.HHZ. 2020-07-09T15:58:48.46 3.0 undecidable manual Sg 11.02 0
IV.BRMO.HHZ. 2020-07-09T15:58:46.19 3.0 undecidable manual Sn -6.09 0
XK.GIZZ.HHZ. 2020-07-09T15:58:46.08 3.0 undecidable manual Sn -7.2 0
IV.SARZ.HHZ. 2020-07-09T15:58:43.32 3.0 undecidable manual Sg 13.02 0
IV.PZUN.HHZ. 2020-07-09T15:58:19.05 3.0 undecidable manual Sn -2.28 0
CR.ZAG.BHZ. 2020-07-09T15:58:17.52 3.0 undecidable manual Pg 15.75 0
MN.TUE.HHZ. 2020-07-09T15:58:14.62 3.0 undecidable manual Pg 10.72 0
IV.BRMO.HHZ. 2020-07-09T15:58:13.94 3.0 negative manual Pg 13.62 0
IV.SBPO.HNZ. 2020-07-09T15:58:12.31 3.0 undecidable manual Sn -3.96 0
IV.PTCC.HHZ. 2020-07-09T15:58:08.01 3.0 positive manual Pg 9.98 0
IV.IMOL.HNZ. 2020-07-09T15:58:00.02 3.0 undecidable manual Sg 3.49 0
IV.IOCA.HHZ. 2020-07-09T15:57:56.93 3.0 undecidable manual Sg 4.76 0
IV.SBPO.HNZ. 2020-07-09T15:57:47.34 3.0 undecidable manual Pg 7.25 0
IV.MGR.HHZ. 2020-07-09T15:57:43.69 3.0 negative manual Pn -1.14 0
IV.AGLI.HHZ. 2020-07-09T15:57:34.50 3.0 undecidable manual Pn 1 0
IV.IMTC.HHZ. 2020-07-09T15:57:22.77 3.0 undecidable manual Pn -3.87 0
IV.NRCA.HHZ. 2020-07-09T15:57:17.30 0.3 undecidable manual S 16 36.8298 93 -0.19 70
IV.SMA1.EHZ. 2020-07-09T15:57:16.30 0.3 undecidable manual S 66 31.3464 94 0.29 69
IV.MC2.EHE. 2020-07-09T15:57:14.04 0.6 undecidable manual P 21 47.0196 92 0.19 46
IV.TERO.HHZ. 2020-07-09T15:57:14.32 0.3 undecidable manual P 76 51.9036 92 -0.29 67
IV.NRCA.HHZ. 2020-07-09T15:57:12.24 0.3 undecidable manual P 16 36.8298 93 -0.05 72
IV.RM33.EHZ. 2020-07-09T15:57:12.50 0.3 undecidable manual S 92 18.7701 103 -0.18 72
IV.SMA1.EHZ. 2020-07-09T15:57:11.58 0.3 undecidable manual P 66 31.3464 94 0.14 71
IV.CAMP.HHN. 2020-07-09T15:57:11.92 0.3 undecidable manual P 86 34.743 94 -0.03 73
IV.LNSS.HHZ. 2020-07-09T15:57:10.70 0.1 undecidable manual S 25 10.7781 126 -0.03 100
IV.RM33.EHZ. 2020-07-09T15:57:09.52 0.1 undecidable manual P 92 18.7701 103 0 100
IV.LNSS.HHZ. 2020-07-09T15:57:08.51 0.1 undecidable manual P 25 10.7781 126 0.12 99
IV.AQU.HHZ. 2020-07-09T15:57:07.28 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:1.6 0.00041200000000000004 1.24 AML other m 2020-07-09T15:57:11.84
IV.LNSS.HHE. ML:1.6 0.0003985 0.08 AML other m 2020-07-09T15:57:11.32
IV.RM33.EHE. ML:1.0 0.0000629 0.26 AML other m 2020-07-09T15:57:12.69
IV.RM33.EHN. ML:0.9 0.0000577 1.26 AML other m 2020-07-09T15:57:12.20
IV.SMA1.EHE. ML:1.2 0.000081 0.54 AML other m 2020-07-09T15:57:16.70
IV.SMA1.EHN. ML:0.8 0.000027450000000000003 1.48 AML other m 2020-07-09T15:57:16.05
IV.NRCA.HHN. ML:1.4 0.00009565 0.1 AML other m 2020-07-09T15:57:18.40
IV.NRCA.HHE. ML:1.5 0.0001175 0.1 AML other m 2020-07-09T15:57:18.47
IV.TERO.HHE. ML:1.0 0.0000252 0.16 AML other m 2020-07-09T15:57:21.49
IV.TERO.HHN. ML:1.1 0.0000296 0.94 AML other m 2020-07-09T15:57:21.50
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