Earthquake with magnitude of ML 0.7 on date 22-10-2021 and time 13:06:16 (Italy) in region 7 km N Valfabbrica (PG)

A magnitude ML 0.7 earthquake occured in region: 7 km N Valfabbrica (PG), on

  • 22-10-2021 11:06:16 (UTC)
  • 22-10-2021 13:06:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.218, 12.588 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
Valfabbrica PG 7 3389 3389
Gubbio PG 15 32216 35605
Gualdo Tadino PG 16 15208 50813
Assisi PG 16 28299 79112
Fossato di Vico PG 17 2840 81952
Bastia Umbra PG 17 21874 103826
Sigillo PG 18 2404 106230
Costacciaro PG 19 1216 107446

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NE of Perugia (166134 inhabitants)
31 Km NW of Foligno (57155 inhabitants)
63 Km E of Arezzo (99543 inhabitants)
73 Km N of Terni (111501 inhabitants)
78 Km SW of Fano (60888 inhabitants)
81 Km SW of Pesaro (94582 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
94 Km S of Rimini (147750 inhabitants)
97 Km NE of Viterbo (67173 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 0.7 2021-10-22
11:06:16
43.2183 12.5883 10 2021-10-22
11:22:28
Sala Sismica INGV-Roma 96875641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-22 11:06:16 ± 0.06
Latitude 43.2183 ± 0.0027
Longitude 12.5883 ± 0.0049
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 96875641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 409
Semi-minor axis of confidence ellipse (meter) 260
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 235
Circular confidence region, given by single value of horizontal uncertainty (meter) 410
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.31926
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 96875641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-22 11:22:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MUCR.HHZ. 2021-10-22T11:08:27.22 3.0 undecidable manual Sg 13.1 0
OX.CIMO.HHZ. 2021-10-22T11:07:52.34 3.0 undecidable manual Sg 7.36 0
IV.IFIL.HHZ. 2021-10-22T11:07:49.73 3.0 undecidable manual Sn -9.99 0
IV.ZEN8.EHZ. 2021-10-22T11:07:40.71 3.0 undecidable manual Sg 8.22 0
IV.SARZ.HHZ. 2021-10-22T11:07:40.43 3.0 undecidable manual Sg 6.79 0
AC.VLO.HHZ. 2021-10-22T11:07:32.93 3.0 undecidable manual Pn 2.13 0
GU.RNCA.HHZ. 2021-10-22T11:07:22.92 3.0 undecidable manual Sn -3.92 0
IT.LRNO.HNZ. 2021-10-22T11:07:21.48 3.0 undecidable manual Sg 14.79 0
IV.PLLN.EHZ. 2021-10-22T11:07:14.11 3.0 negative manual Pn -1.63 0
IV.TDS.HHZ. 2021-10-22T11:07:13.89 3.0 undecidable manual Pg 5.24 0
MN.TRI.HHZ. 2021-10-22T11:07:01.11 3.0 undecidable manual Pg 5.05 0
IV.IMOL.HNZ. 2021-10-22T11:06:57.61 3.0 undecidable manual Sn -0.56 0
IV.DGI.HHZ. 2021-10-22T11:06:54.41 3.0 undecidable manual Pg 4.11 0
IV.MRB1.HHZ. 2021-10-22T11:06:54.63 3.0 positive manual Pg 9.76 0
IV.POFI.HHZ. 2021-10-22T11:06:53.88 3.0 undecidable manual Sg 5.36 0
OT.OT17.EHZ. 2021-10-22T11:06:49.40 3.0 positive manual Pg 4.51 0
IV.PZUN.HHZ. 2021-10-22T11:06:48.88 3.0 positive manual Pn -6.83 0
IV.EL6.EHZ. 2021-10-22T11:06:31.81 3.0 undecidable manual S 0
IV.GIUL.HHZ. 2021-10-22T11:06:30.13 3.0 negative manual Pg 2.15 0
IV.MCIV.CHZ. 2021-10-22T11:06:29.97 3.0 undecidable manual Sg 3.22 0
IV.PIEI.HHN. 2021-10-22T11:06:28.93 0.1 undecidable manual S 353 0.3193 50 0.19 93
IV.FRON.EHE. 2021-10-22T11:06:28.89 0.1 undecidable manual S 18 0.3157 50 0.27 92
IV.CESI.HHN. 2021-10-22T11:06:28.57 0.1 undecidable manual S 133 0.3139 50 -0.01 97
IV.ATPI.HNE. 2021-10-22T11:06:27.20 0.1 undecidable manual S 330 0.2689 50 -0.03 97
IV.ATPC.HHE. 2021-10-22T11:06:27.73 0.1 undecidable manual S 340 0.2788 50 0.19 94
IV.EL6.EHZ. 2021-10-22T11:06:26.82 3.0 undecidable manual P 0
IV.ATSC.EHN. 2021-10-22T11:06:25.54 0.1 undecidable manual S 19 0.2176 113 -0.16 96
IV.ASSB.HHZ. 2021-10-22T11:06:24.39 0.6 undecidable manual S 164 0.1826 117 -0.09 49
IV.ATLO.EHN. 2021-10-22T11:06:23.53 0.1 undecidable manual S 306 0.1637 119 -0.29 94
IV.PIEI.HHN. 2021-10-22T11:06:23.57 0.1 undecidable manual P 353 0.3193 50 -0.04 96
IV.FRON.EHE. 2021-10-22T11:06:23.29 0.1 undecidable manual P 18 0.3157 50 -0.25 92
IV.CESI.HHN. 2021-10-22T11:06:23.49 0.1 undecidable manual P 133 0.3139 50 -0.03 96
IV.FOSV.HNZ. 2021-10-22T11:06:23.27 0.1 undecidable manual S 59 0.1475 122 -0.01 100
IV.ATFO.HHZ. 2021-10-22T11:06:23.58 0.6 undecidable manual S 355 0.1484 122 0.25 48
IV.ATPI.HNE. 2021-10-22T11:06:22.74 0.1 undecidable manual P 330 0.2689 50 0 98
IV.ATPC.HHE. 2021-10-22T11:06:22.77 0.1 undecidable manual P 340 0.2788 50 -0.15 95
IV.ATSC.EHN. 2021-10-22T11:06:21.63 0.1 undecidable manual P 19 0.2176 113 -0.22 94
IV.ATCC.EHZ. 2021-10-22T11:06:21.12 0.6 undecidable manual S 131 0.0504 151 0.5 46
IV.ASSB.HHZ. 2021-10-22T11:06:21.18 1.0 undecidable manual P 164 0.1826 117 0.03 25
IV.MURB.HHZ. 2021-10-22T11:06:21.12 0.3 undecidable manual S 314 0.0648 145 0.21 73
IV.FOSV.HNZ. 2021-10-22T11:06:20.24 0.1 undecidable manual P 59 0.1475 122 -0.22 96
IV.ATFO.HHZ. 2021-10-22T11:06:20.72 1.0 undecidable manual P 355 0.1484 122 0.23 24
IV.ATLO.EHN. 2021-10-22T11:06:20.65 0.1 undecidable manual P 306 0.1637 119 -0.12 97
IV.MURB.HHZ. 2021-10-22T11:06:19.35 0.1 positive manual P 314 0.0648 145 0.26 96
IV.ATCC.EHZ. 2021-10-22T11:06:19.19 1.0 undecidable manual P 131 0.0504 151 0.27 24
IV.ROM9.HNZ. 2021-10-22T11:06:18.75 3.0 negative manual P -2.66 0
IV.MCIV.CHZ. 2021-10-22T11:06:15.62 3.0 undecidable manual P -1.99 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHN. ML:0.7 8.5496405E-5 0.1408 AML other m 2021-10-22T11:06:21.24
IV.ATCC.EHE. ML:0.7 8.2847395E-5 0.1984 AML other m 2021-10-22T11:06:21.29
IV.MURB.HNE. ML:1.4 0.0003389538 0.1728 AML other m 2021-10-22T11:06:21.65
IV.MURB.HNN. ML:1.2 0.0002347322 0.128 AML other m 2021-10-22T11:06:21.54
IV.ATFO.HHE. ML:0.6 3.4247345E-5 0.1856 AML other m 2021-10-22T11:06:24.34
IV.ATFO.HHN. ML:0.5 2.9182095E-5 0.224 AML other m 2021-10-22T11:06:23.70
IV.ASSB.HHE. ML:0.4 1.8553644E-5 0.16 AML other m 2021-10-22T11:06:25.60
IV.ASSB.HHN. ML:0.6 2.920526E-5 0.1024 AML other m 2021-10-22T11:06:24.67
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