Earthquake with magnitude of ML 0.5 on date 04-08-2022 and time 00:09:08 (Italy) in region 7 km W Sellano (PG)

A magnitude ML 0.5 earthquake occured in region: 7 km W Sellano (PG), on

  • 03-08-2022 22:09:08 (UTC)
  • 04-08-2022 00:09:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8740, 12.8440 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
Sellano PG 7 1079 1079
Trevi PG 8 8469 9548
Campello sul Clitunno PG 8 2442 11990
Cerreto di Spoleto PG 9 1075 13065
Vallo di Nera PG 12 364 13429
Foligno PG 15 57155 70584
Castel Ritaldi PG 15 3278 73862
Sant'Anatolia di Narco PG 16 564 74426
Montefalco PG 16 5679 80105
Preci PG 16 724 80829
Spoleto PG 18 38218 119047
Scheggino PG 18 461 119508
Monte Cavallo MC 19 145 119653
Spello PG 19 8645 128298
Poggiodomo PG 20 117 128415

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km SE of Foligno (57155 inhabitants)
38 Km NE of Terni (111501 inhabitants)
45 Km SE of Perugia (166134 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
74 Km W of Teramo (54892 inhabitants)
79 Km NE of Viterbo (67173 inhabitants)
98 Km N of Guidonia Montecelio (88673 inhabitants)
99 Km SW of Ancona (100861 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 0.5 2022-08-03
22:09:08
42.8743 12.8437 11 2022-08-03
22:14:07
Sala Sismica INGV-Roma 108080481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-03 22:09:08 ± 0.17
Latitude 42.8743 ± 0.0063
Longitude 12.8437 ± 0.0074
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 108080481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 841
Semi-minor axis of confidence ellipse (meter) 429
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 32
Circular confidence region, given by single value of horizontal uncertainty (meter) 840.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 219
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.13760
Epicentral distance of station farthest from the epicenter (degree) 0.34174
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 108080481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-03 22:14:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2022-08-03T22:09:21.58 0.1 undecidable manual S 50 37.9287 50 0.21 93
IV.MML1.EHZ. 2022-08-03T22:09:18.75 0.1 undecidable manual S 21 28.4493 50 -0.09 97
IV.ASSB.HHZ. 2022-08-03T22:09:17.48 0.1 undecidable manual S 321 23.9538 50 -0.16 96
IV.NRCA.HHZ. 2022-08-03T22:09:17.16 0.1 undecidable manual S 102 22.4553 50 -0.08 98
IV.CSP1.EHZ. 2022-08-03T22:09:16.08 1.0 positive manual P 50 37.9287 50 0.05 24
IV.CESI.HHZ. 2022-08-03T22:09:15.14 0.1 undecidable manual S 19 15.2736 125 -0.08 100
IV.ASSB.HHZ. 2022-08-03T22:09:14.36 0.6 undecidable manual P 321 23.9538 50 0.5 45
IV.MML1.EHZ. 2022-08-03T22:09:14.44 1.0 positive manual P 21 28.4493 50 -0.13 24
IV.NRCA.HHZ. 2022-08-03T22:09:13.53 0.3 undecidable manual P 102 22.4553 50 -0.1 73
IV.CESI.HHZ. 2022-08-03T22:09:12.52 0.1 positive manual P 19 15.2736 125 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.2 0.000014194999999999999 0.68 AML other m 2022-08-03T22:09:12.77
IV.CESI.HHN. ML:0.4 0.0000265 0.32 AML other m 2022-08-03T22:09:15.42
IV.NRCA.HHN. ML:0.5 0.000019 0.14 AML other m 2022-08-03T22:09:17.36
IV.ASSB.HHN. ML:0.4 0.000016649999999999998 0.88 AML other m 2022-08-03T22:09:17.15
IV.ASSB.HHE. ML:0.4 0.000014380000000000001 0.44 AML other m 2022-08-03T22:09:17.70
IV.NRCA.HHE. ML:0.4 0.00001455 0.98 AML other m 2022-08-03T22:09:18.54
IV.SSFR.HHE. ML:1.2 0.000029250000000000003 0.22 AML other m 2022-08-03T22:09:20.93
IV.SSFR.HHN. ML:1.1 0.000026349999999999997 0.92 AML other m 2022-08-03T22:09:20.95
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