Earthquake with magnitude of ML 0.7 on date 24-09-2021 and time 22:23:10 (Italy) in region 9 km E Foligno (PG)

A magnitude ML 0.7 earthquake occured in region: 9 km E Foligno (PG), on

  • 24-09-2021 20:23:10 (UTC)
  • 24-09-2021 22:23:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9890, 12.8000 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
Foligno PG 9 57155 57155
Valtopina PG 9 1398 58553
Spello PG 10 8645 67198
Trevi PG 13 8469 75667
Nocera Umbra PG 14 5839 81506
Sellano PG 15 1079 82585
Serravalle di Chienti MC 16 1070 83655
Montefalco PG 16 5679 89334
Monte Cavallo MC 17 145 89479
Bevagna PG 17 5081 94560
Assisi PG 18 28299 122859
Cannara PG 18 4305 127164
Campello sul Clitunno PG 19 2442 129606

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km E of Foligno (57155 inhabitants)
36 Km E of Perugia (166134 inhabitants)
49 Km N of Terni (111501 inhabitants)
82 Km W of Teramo (54892 inhabitants)
85 Km NE of Viterbo (67173 inhabitants)
86 Km NW of L'Aquila (69753 inhabitants)
91 Km SW of Ancona (100861 inhabitants)
91 Km SE of Arezzo (99543 inhabitants)
97 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 0.7 2021-09-24
20:23:10
42.9892 12.7998 10 2021-09-24
21:31:11
Sala Sismica INGV-Roma 95846001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-24 20:23:10 ± 0.08
Latitude 42.9892 ± 0.0045
Longitude 12.7998 ± 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 95846001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 481
Semi-minor axis of confidence ellipse (meter) 149
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 185
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 209
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.31296
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 95846001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-24 21:31:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TOLF.HHZ. 2021-09-24T20:23:40.15 3.0 undecidable manual S -0.02 0
IV.ATCC.EHZ. 2021-09-24T20:23:19.77 0.1 undecidable manual S 329 25.3524 50 0.07 97
IV.CSP1.EHZ. 2021-09-24T20:23:17.04 1.0 undecidable manual P 71 34.743 50 -0.14 23
IV.MML1.EHZ. 2021-09-24T20:23:17.88 0.1 undecidable manual S 45 19.5693 117 -0.05 98
IV.CESI.HHZ. 2021-09-24T20:23:15.14 0.6 undecidable manual S 78 8.6802 139 0.23 48
IV.ATCC.EHZ. 2021-09-24T20:23:15.69 1.0 undecidable manual P 329 25.3524 50 -0.03 24
IV.ASSB.HHZ. 2021-09-24T20:23:15.93 0.1 undecidable manual S 297 12.876 128 -0.04 100
IT.MTCL.HGZ. 2021-09-24T20:23:14.02 0.1 undecidable manual P 88 16.1727 122 -0.09 98
IV.MML1.EHZ. 2021-09-24T20:23:14.64 0.6 positive manual P 45 19.5693 117 -0.06 49
IV.ASSB.HHZ. 2021-09-24T20:23:13.56 0.3 negative manual P 297 12.876 128 0 75
IV.CESI.HHZ. 2021-09-24T20:23:13.01 0.1 undecidable manual P 78 8.6802 139 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:0.5 0.000044999999999999996 0.06 AML other m 2021-09-24T20:23:15.49
IV.CESI.HHE. ML:0.6 0.000051500000000000005 1.28 AML other m 2021-09-24T20:23:15.31
IV.ASSB.HHN. ML:1.0 0.00009989999999999999 0.4 AML other m 2021-09-24T20:23:16.13
IV.ASSB.HHE. ML:0.9 0.00008935 1.12 AML other m 2021-09-24T20:23:16.03
IV.MML1.EHN. ML:0.6 0.000028699999999999996 0.06 AML other m 2021-09-24T20:23:18.00
IV.MML1.EHE. ML:0.7 0.000041349999999999995 0.34 AML other m 2021-09-24T20:23:18.23
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