Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 05-06-2021 and time 22:07:52 (Italy) in region 2 km NW Montefranco (TR)

A magnitude ML 1.3 earthquake occured in region: 2 km NW Montefranco (TR), on

  • 05-06-2021 20:07:52 (UTC)
  • 05-06-2021 22:07:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6100, 12.7590 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
Montefranco TR 2 1276 1276
Ferentillo TR 3 1913 3189
Arrone TR 3 2763 5952
Polino TR 8 233 6185
Labro RI 10 374 6559
Terni TR 11 111501 118060
Morro Reatino RI 11 373 118433
Colli sul Velino RI 12 533 118966
Scheggino PG 13 461 119427
Rivodutri RI 13 1253 120680
Spoleto PG 14 38218 158898
Stroncone TR 15 4917 163815
Sant'Anatolia di Narco PG 15 564 164379
Poggio Bustone RI 16 2055 166434
Monteleone di Spoleto PG 17 599 167033
Greccio RI 17 1558 168591
San Gemini TR 17 5018 173609
Leonessa RI 18 2435 176044
Poggiodomo PG 18 117 176161
Acquasparta TR 20 4778 180939
Cantalice RI 20 2755 183694
Vallo di Nera PG 20 364 184058

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km NE of Terni (111501 inhabitants)
39 Km S of Foligno (57155 inhabitants)
58 Km E of Viterbo (67173 inhabitants)
60 Km W of L'Aquila (69753 inhabitants)
63 Km SE of Perugia (166134 inhabitants)
68 Km N of Guidonia Montecelio (88673 inhabitants)
72 Km N of Tivoli (56533 inhabitants)
78 Km W of Teramo (54892 inhabitants)
83 Km N of Roma (2864731 inhabitants)
98 Km NE of Civitavecchia (52991 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 1.3 2021-06-05
20:07:52		 42.6102 12.7593 10 2021-06-05
20:15:46		 Sala Sismica INGV-Roma 90833961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-05 20:07:52 ± 0.07
Latitude 42.6102 ± 0.0063
Longitude 12.7593 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 90833961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 686
Semi-minor axis of confidence ellipse (meter) 288
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 174
Circular confidence region, given by single value of horizontal uncertainty (meter) 690.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.58096
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 90833961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-05 20:15:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BRSN.EHZ. 2021-06-05T20:08:43.97 3.0 undecidable manual Sn -0.43 0
IV.MELA.HHZ. 2021-06-05T20:08:25.41 3.0 undecidable manual Pn 0.72 0
IV.MMUR.HNZ. 2021-06-05T20:08:21.58 3.0 undecidable manual S -0.15 0
IV.MMUR.HNZ. 2021-06-05T20:08:06.97 3.0 positive manual P -1.62 0
IV.TERO.HHZ. 2021-06-05T20:08:04.09 3.0 negative manual P -0.45 0
IV.ATCC.EHZ. 2021-06-05T20:08:03.85 1.0 positive manual P 351 64.491 50 0.4 21
IV.MGAB.HHZ. 2021-06-05T20:08:03.83 3.0 negative manual P 0.63 0
IV.FDMO.HHZ. 2021-06-05T20:08:01.82 0.6 negative manual P 29 54.3012 50 -0.05 47
IV.ASSB.HHE. 2021-06-05T20:08:01.09 0.6 undecidable manual P 350 48.618 50 0.09 47
IV.MOMA.HHZ. 2021-06-05T20:08:01.69 0.6 undecidable manual S 324 26.4513 50 0.02 50
IV.SMA1.EHZ. 2021-06-05T20:08:00.99 3.0 negative manual P 0.11 0
IV.LNSS.HHZ. 2021-06-05T20:08:00.87 1.0 undecidable manual S 92 22.9548 50 0.13 24
IV.CESI.HHZ. 2021-06-05T20:08:00.79 0.3 positive manual P 15 45.3213 50 0.29 68
IV.RM33.EHZ. 2021-06-05T20:07:59.58 3.0 negative manual P 0.06 0
IV.NRCA.HHZ. 2021-06-05T20:07:59.24 0.3 negative manual P 49 38.0286 50 -0.13 71
IV.GAVE.EHZ. 2021-06-05T20:07:58.12 0.6 undecidable manual S 50 14.2746 126 -0.01 51
IV.CESX.HHZ. 2021-06-05T20:07:58.17 0.6 undecidable manual S 269 14.0748 126 0.09 50
IV.LNSS.HHZ. 2021-06-05T20:07:57.04 0.1 negative manual P 92 22.9548 50 0 100
IT.GNU.HGZ. 2021-06-05T20:07:57.47 1.0 undecidable manual P 324 26.4513 50 -0.11 24
IV.MOMA.HHZ. 2021-06-05T20:07:57.38 0.6 negative manual P 324 26.4513 50 -0.2 48
IV.CESX.HHZ. 2021-06-05T20:07:55.36 0.3 undecidable manual P 269 14.0748 126 -0.15 74
IV.ARRO.EHZ. 2021-06-05T20:07:55.93 0.3 undecidable manual S 172 3.4965 161 0.12 76
IV.GAVE.EHZ. 2021-06-05T20:07:55.43 0.1 negative manual P 50 14.2746 126 -0.11 100
IV.ARRO.EHZ. 2021-06-05T20:07:54.19 0.3 positive manual P 172 3.4965 161 -0.01 78
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHE. ML:1.9 0.0012900000000000001 1.8 AML other m 2021-06-05T20:07:56.99
IV.ARRO.EHN. ML:1.8 0.0012250000000000002 0.26 AML other m 2021-06-05T20:07:56.21
IV.GAVE.EHE. ML:1.7 0.0005309999999999999 0.18 AML other m 2021-06-05T20:07:59.89
IV.GAVE.EHN. ML:1.6 0.0004095 1.04 AML other m 2021-06-05T20:08:00.79
IV.LNSS.HHE. ML:1.4 0.000169 1.14 AML other m 2021-06-05T20:08:01.71
IV.MOMA.HHN. ML:1.3 0.0001012 1.58 AML other m 2021-06-05T20:08:03.83
IV.MOMA.HHE. ML:1.1 0.00007544999999999999 1 AML other m 2021-06-05T20:08:04.83
IV.LNSS.HHN. ML:1.4 0.00016099999999999998 0.18 AML other m 2021-06-05T20:08:05.19
IV.RM33.EHE. ML:1.4 0.00008755 0.16 AML other m 2021-06-05T20:08:05.94
IV.RM33.EHN. ML:1.1 0.00004565 0.96 AML other m 2021-06-05T20:08:05.96
IV.NRCA.HHN. ML:1.4 0.0000917 0.14 AML other m 2021-06-05T20:08:06.43
IV.NRCA.HHE. ML:1.2 0.0000657 0.66 AML other m 2021-06-05T20:08:07.09
IV.CESI.HHN. ML:1.3 0.000060650000000000004 0.18 AML other m 2021-06-05T20:08:07.33
IV.CESI.HHE. ML:1.3 0.00006459999999999998 0.3 AML other m 2021-06-05T20:08:07.31
IV.FDMO.HHN. ML:1.1 0.00003165 1.64 AML other m 2021-06-05T20:08:10.08
IV.SMA1.EHE. ML:1.3 0.00005755 0.68 AML other m 2021-06-05T20:08:10.58
IV.FDMO.HHE. ML:1.1 0.00002925 0.96 AML other m 2021-06-05T20:08:10.35
IV.SMA1.EHN. ML:1.2 0.00003855 0.78 AML other m 2021-06-05T20:08:10.84
IV.MGAB.HHN. ML:1.0 0.000022199999999999998 0.92 AML other m 2021-06-05T20:08:13.89
IV.MGAB.HHE. ML:1.2 0.000027999999999999996 0.32 AML other m 2021-06-05T20:08:15.00
IV.ATCC.EHN. ML:1.0 0.000019849999999999998 1.72 AML other m 2021-06-05T20:08:18.12
IV.ATCC.EHE. ML:1.1 0.000024050000000000002 0.72 AML other m 2021-06-05T20:08:20.60
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