Earthquake with magnitude of ML 0.4 on date 27-06-2021 and time 23:17:44 (Italy) in region 11 km SE Valtopina (PG)

A magnitude ML 0.4 earthquake occured in region: 11 km SE Valtopina (PG), on

  • 27-06-2021 21:17:44 (UTC)
  • 27-06-2021 23:17:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9940, 12.8580 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Valtopina PG 11 1398 1398
Serravalle di Chienti MC 12 1070 2468
Monte Cavallo MC 12 145 2613
Sellano PG 13 1079 3692
Foligno PG 13 57155 60847
Nocera Umbra PG 14 5839 66686
Spello PG 15 8645 75331
Trevi PG 16 8469 83800
Pieve Torina MC 17 1458 85258
Muccia MC 18 915 86173
Sefro MC 19 422 86595
Fiordimonte MC 20 202 86797
Preci PG 20 724 87521
Cerreto di Spoleto PG 20 1075 88596
Montefalco PG 20 5679 94275

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km E of Foligno (57155 inhabitants)
40 Km E of Perugia (166134 inhabitants)
51 Km NE of Terni (111501 inhabitants)
79 Km W of Teramo (54892 inhabitants)
84 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
95 Km SE of Arezzo (99543 inhabitants)
96 Km S of Fano (60888 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 0.4 2021-06-27
21:17:44
42.9937 12.8578 10 2021-06-27
21:26:25
Sala Sismica INGV-Roma 91975941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-27 21:17:44 ± 0.04
Latitude 42.9937 ± 0.0027
Longitude 12.8578 ± 0.0025
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 91975941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 291
Semi-minor axis of confidence ellipse (meter) 166
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 20
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) 114
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.30217
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 91975941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-27 21:26:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.BERNI.HHZ. 2021-06-27T21:19:28.56 3.0 undecidable manual Sn 0.46 0
IV.EFIU.HHZ. 2021-06-27T21:19:15.68 3.0 negative manual Pg 18.66 0
IV.SARZ.HHZ. 2021-06-27T21:19:11.77 3.0 undecidable manual Sn -0.26 0
GE.MATE.HHZ. 2021-06-27T21:18:46.76 3.0 negative manual Pg 12.75 0
GU.CANO.HHZ. 2021-06-27T21:18:45.88 3.0 undecidable manual Pg 12.69 0
ST.VARA.EHZ. 2021-06-27T21:18:42.80 3.0 undecidable manual Pg 12.97 0
CR.STON.BHZ. 2021-06-27T21:18:36.58 3.0 undecidable manual Pn 2.44 0
GU.RNCA.HHZ. 2021-06-27T21:18:27.95 3.0 undecidable manual Pn -0.52 0
IV.CDRU.HHZ. 2021-06-27T21:18:24.80 3.0 undecidable manual Pn -0.01 0
IV.BRSN.EHZ. 2021-06-27T21:18:10.60 3.0 positive manual Pg 4.67 0
IV.GAVE.HNZ. 2021-06-27T21:17:56.15 0.6 undecidable manual S 175 33.5442 50 -0.06 49
IV.PP3.EHZ. 2021-06-27T21:17:56.34 3.0 undecidable manual P 0.1 0
IV.ATCC.EHZ. 2021-06-27T21:17:54.68 0.6 undecidable manual S 320 27.6501 50 0.06 49
IV.ASSB.HHZ. 2021-06-27T21:17:51.25 0.1 undecidable manual S 289 17.0718 120 -0.11 99
IV.GAVE.HNZ. 2021-06-27T21:17:51.21 0.3 undecidable manual P 175 33.5442 50 -0.06 73
IV.FDMO.HHZ. 2021-06-27T21:17:51.93 0.3 undecidable manual S 76 19.1697 117 -0.09 75
IV.ATCC.EHZ. 2021-06-27T21:17:50.29 0.3 undecidable manual P 320 27.6501 50 -0.06 74
IV.MML1.HNE. 2021-06-27T21:17:50.93 0.6 undecidable manual S 35 16.1727 121 -0.18 49
IT.MTCL.HGN. 2021-06-27T21:17:49.74 0.6 undecidable manual S 90 11.4774 131 -0.04 51
IV.ASSB.HHZ. 2021-06-27T21:17:48.55 0.1 positive manual P 289 17.0718 120 0.08 100
IV.FDMO.HHZ. 2021-06-27T21:17:48.87 0.6 negative manual P 76 19.1697 117 0.02 50
IV.FEMA.HNN. 2021-06-27T21:17:48.24 0.6 undecidable manual P 103 15.9729 122 -0.04 50
IV.CESI.HNE. 2021-06-27T21:17:48.12 0.3 undecidable manual S 72 3.996 158 -0.1 76
IV.MML1.HNE. 2021-06-27T21:17:48.43 0.1 undecidable manual P 35 16.1727 121 0.11 100
IT.MTCL.HGN. 2021-06-27T21:17:47.66 0.3 undecidable manual P 90 11.4774 131 0.1 75
IV.CESI.HNE. 2021-06-27T21:17:46.84 0.1 undecidable manual P 72 3.996 158 0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHE. ML:0.5 0.00002796238 0.0768 AML other m 2021-06-27T21:17:51.46
IV.ASSB.HHN. ML:0.5 0.000029036520000000004 0.1792 AML other m 2021-06-27T21:17:51.32
IV.FDMO.HHE. ML:0.1 0.000010295 1.52 AML other m 2021-06-27T21:17:52.81
IV.FDMO.HHN. ML:0.3 0.0000134 1.72 AML other m 2021-06-27T21:17:52.07
IV.ATCC.EHE. ML:0.4 0.0000129468165 0.1152 AML other m 2021-06-27T21:17:54.93
IV.ATCC.EHN. ML:0.3 0.000009821402499999999 0.1408 AML other m 2021-06-27T21:17:54.89
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