Earthquake with magnitude of ML 0.4 on date 09-09-2021 and time 09:21:33 (Italy) in region 3 km NE Sigillo (PG)

A magnitude ML 0.4 earthquake occured in region: 3 km NE Sigillo (PG), on

  • 09-09-2021 07:21:33 (UTC)
  • 09-09-2021 09:21:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.349, 12.764 at 11 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
Sigillo PG 3 2404 2404
Costacciaro PG 4 1216 3620
Fossato di Vico PG 6 2840 6460
Scheggia e Pascelupo PG 10 1393 7853
Fabriano AN 12 31480 39333
Sassoferrato AN 13 7285 46618
Gualdo Tadino PG 13 15208 61826
Gubbio PG 15 32216 94042
Serra Sant'Abbondio PU 16 1027 95069
Genga AN 17 1797 96866
Cantiano PU 18 2245 99111
Cerreto d'Esi AN 18 3817 102928
Esanatoglia MC 18 2034 104962
Frontone PU 19 1300 106262

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km NE of Perugia (166134 inhabitants)
44 Km N of Foligno (57155 inhabitants)
59 Km SW of Fano (60888 inhabitants)
64 Km S of Pesaro (94582 inhabitants)
68 Km W of Ancona (100861 inhabitants)
72 Km E of Arezzo (99543 inhabitants)
81 Km S of Rimini (147750 inhabitants)
88 Km N of Terni (111501 inhabitants)
97 Km SE of Cesena (96758 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.4 2021-09-09
07:21:33
43.3493 12.7637 11 2021-09-09
07:50:13
Sala Sismica INGV-Roma 95227161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-09 07:21:33 ± 0.09
Latitude 43.3493 ± 0.0054
Longitude 12.7637 ± 0.0049
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 95227161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 610
Semi-minor axis of confidence ellipse (meter) 411
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 1
Circular confidence region, given by single value of horizontal uncertainty (meter) 610
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.29318
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 11
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 95227161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-09 07:50:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ISPIC.HNZ. 2021-09-09T07:23:12.50 3.0 positive manual Pn -0.71 0
IV.COLB.HHZ. 2021-09-09T07:23:12.70 3.0 undecidable manual Sg 8.9 0
MN.PDG.HHZ. 2021-09-09T07:23:01.54 3.0 undecidable manual Pg 19.719999 0
IV.MSRU.HHZ. 2021-09-09T07:22:59.08 3.0 negative manual Pn 3.09 0
GU.MGRO.HHZ. 2021-09-09T07:22:48.82 3.0 undecidable manual Sg 4.26 0
IV.CERA.HNZ. 2021-09-09T07:22:45.64 3.0 undecidable manual Sn 0.12 0
IV.BRMO.HHZ. 2021-09-09T07:22:23.94 3.0 undecidable manual Sn -4.51 0
MN.BNI.HHZ. 2021-09-09T07:22:21.67 3.0 negative manual Pg 3.09 0
IV.TOLF.HHZ. 2021-09-09T07:22:17.75 3.0 undecidable manual Sn -7.88 0
IV.COLB.HHZ. 2021-09-09T07:22:16.24 3.0 undecidable manual Pn -1.85 0
IV.FREG.EHZ. 2021-09-09T07:22:16.30 3.0 undecidable manual Sg 6.65 0
IV.MTRA.EHZ. 2021-09-09T07:22:12.22 3.0 undecidable manual Sn -3.04 0
IV.MF5.EHZ. 2021-09-09T07:22:08.07 3.0 undecidable manual Sn -3.08 0
IV.MNTP.HNZ. 2021-09-09T07:22:07.57 3.0 undecidable manual Sn -0.78 0
GU.MGRO.HHZ. 2021-09-09T07:22:03.60 3.0 undecidable manual Pn -3.68 0
IV.BRMO.HHZ. 2021-09-09T07:21:59.47 3.0 negative manual Pg 1.24 0
IV.SMA1.EHZ. 2021-09-09T07:21:58.06 3.0 positive manual Pg 6.03 0
CH.MUGIO.HHZ. 2021-09-09T07:21:57.49 3.0 undecidable manual Pn -3.8 0
IV.TOLF.HHZ. 2021-09-09T07:21:52.62 3.0 negative manual Pn -4.03 0
GU.RNCA.HHZ. 2021-09-09T07:21:51.78 3.0 positive manual Pn -3.9 0
IV.PE3.EHZ. 2021-09-09T07:21:46.92 3.0 undecidable manual Sg 0.96 0
IV.ATVO.HNE. 2021-09-09T07:21:43.22 0.6 undecidable manual S 277 0.2617 50 -0.19 47
IV.ATPC.HHN. 2021-09-09T07:21:43.26 0.6 undecidable manual S 301 0.2581 50 -0.07 48
IV.TB03.DHZ.01 2021-09-09T07:21:43.14 0.6 undecidable manual S 282 0.2617 50 -0.29 46
IV.MNTT.EHZ. 2021-09-09T07:21:43.19 3.0 positive manual Pn -5.35 0
IV.ARVD.HHE. 2021-09-09T07:21:41.60 0.6 undecidable manual S 41 0.197 50 0.1 48
IV.ATBU.EHN. 2021-09-09T07:21:41.81 0.3 undecidable manual S 309 0.2014 50 0.19 71
IV.FRON.EHZ. 2021-09-09T07:21:40.50 0.6 undecidable manual S 351 0.1709 50 -0.22 47
IV.SNTG.HHZ. 2021-09-09T07:21:40.23 0.6 undecidable manual S 126 0.1592 50 -0.16 48
IV.TB03.DHZ.01 2021-09-09T07:21:39.54 0.1 undecidable manual P 282 0.2617 50 0.44 89
IV.ATFO.HHZ. 2021-09-09T07:21:39.88 0.6 undecidable manual S 277 0.1403 125 0.06 49
IV.NARO.HHZ. 2021-09-09T07:21:39.90 0.1 undecidable manual P 333 0.2932 50 0.26 92
IV.ATPC.HHN. 2021-09-09T07:21:39.07 0.1 undecidable manual P 301 0.2581 50 0.03 97
IV.ATSC.EHE. 2021-09-09T07:21:38.55 0.6 undecidable manual S 323 0.0935 137 0.12 49
IV.ATVO.HNE. 2021-09-09T07:21:38.72 0.1 undecidable manual P 277 0.2617 50 -0.37 90
IV.MURB.HHE. 2021-09-09T07:21:38.19 0.1 undecidable manual P 244 0.1943 50 0.25 94
IV.SNTG.HHZ. 2021-09-09T07:21:37.62 1.0 undecidable manual P 126 0.1592 50 0.27 23
IV.ATBU.EHN. 2021-09-09T07:21:37.98 0.1 undecidable manual P 309 0.2014 50 -0.08 97
IV.ARVD.HHE. 2021-09-09T07:21:37.88 0.1 undecidable manual P 41 0.197 50 -0.11 96
IV.FRON.EHZ. 2021-09-09T07:21:37.34 1.0 negative manual P 351 0.1709 50 -0.2 24
IV.ATFO.HHZ. 2021-09-09T07:21:36.81 0.1 negative manual P 277 0.1403 125 -0.21 96
IV.ATSC.EHE. 2021-09-09T07:21:36.19 0.1 undecidable manual P 323 0.0935 137 -0.03 100
IV.BDI.HHZ. 2021-09-09T07:21:32.77 3.0 positive manual P -7.35 0
IV.NDIM.HNZ. 2021-09-09T07:21:32.80 3.0 positive manual P -5.68 0
IV.IMOL.HNZ. 2021-09-09T07:21:25.10 3.0 negative manual P 0.06 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRON.EHE. ML:0.6 2.8485695E-5 0.1184 AML other m 2021-09-09T07:21:40.79
IV.FRON.EHN. ML:0.6 3.0680515E-5 0.08 AML other m 2021-09-09T07:21:41.70
IV.ATFO.HHE. ML:0.4 2.075047E-5 1.0432 AML other m 2021-09-09T07:21:39.87
IV.ATFO.HHN. ML:0.2 1.748051E-5 0.2592 AML other m 2021-09-09T07:21:39.86
IV.SNTG.HHE. ML:0.1 1.01423245E-5 0.1408 AML other m 2021-09-09T07:21:40.40
IV.SNTG.HHN. ML:0.3 1.65586875E-5 0.0992 AML other m 2021-09-09T07:21:41.28
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