Earthquake with magnitude of ML 1.2 on date 28-09-2022 and time 03:58:48 (UTC) in region 8 km SW Castel Ritaldi (PG)

A magnitude ML 1.2 earthquake occured in region: 8 km SW Castel Ritaldi (PG), on

  • 28-09-2022 03:58:48 (UTC)
  • 28-09-2022 05:58:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7620, 12.6240 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
Castel Ritaldi PG 8 3278 3278
Massa Martana PG 8 3770 7048
Giano dell'Umbria PG 9 3846 10894
Spoleto PG 10 38218 49112
Acquasparta TR 10 4778 53890
Campello sul Clitunno PG 14 2442 56332
Montefalco PG 15 5679 62011
Trevi PG 16 8469 70480
Montecastrilli TR 17 5022 75502
Gualdo Cattaneo PG 17 6155 81657
San Gemini TR 18 5018 86675
Sant'Anatolia di Narco PG 18 564 87239
Scheggino PG 18 461 87700
Todi PG 18 16851 104551
Bevagna PG 19 5081 109632
Vallo di Nera PG 20 364 109996
Avigliano Umbro TR 20 2558 112554

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km N of Terni (111501 inhabitants)
23 Km S of Foligno (57155 inhabitants)
43 Km SE of Perugia (166134 inhabitants)
57 Km NE of Viterbo (67173 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
85 Km N of Guidonia Montecelio (88673 inhabitants)
89 Km W of Teramo (54892 inhabitants)
90 Km N of Tivoli (56533 inhabitants)
97 Km N of Roma (2864731 inhabitants)
99 Km SE of Arezzo (99543 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 1.2 2022-09-28
03:58:48
42.7622 12.6242 10 2022-09-28
04:03:42
Sala Sismica INGV-Roma 110241711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-28 03:58:48 ± 0.08
Latitude 42.7622 ± 0.0045
Longitude 12.6242 ± 0.0122
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 110241711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1040
Semi-minor axis of confidence ellipse (meter) 398
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 1040.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 126
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.05756
Epicentral distance of station farthest from the epicenter (degree) 0.53869
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 110241711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-28 04:03:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SMA1.EHZ. 2022-09-28T03:59:07.42 0.6 undecidable manual S 104 59.7957 50 0.18 44
IV.CSP1.EHZ. 2022-09-28T03:59:07.52 0.6 undecidable manual S 52 59.6958 50 0.31 43
IV.MC2.EHZ. 2022-09-28T03:59:05.00 3.0 undecidable manual S 70 48.8178 50 0.68 0
IV.FDMO.HHZ. 2022-09-28T03:59:04.09 0.6 undecidable manual S 51 48.4182 50 -0.11 46
IV.NRCA.HHZ. 2022-09-28T03:59:01.66 0.6 undecidable manual S 79 40.626 50 -0.48 43
IV.CESI.HHZ. 2022-09-28T03:59:00.47 0.6 undecidable manual S 40 35.2425 50 -0.23 46
IV.CSP1.EHZ. 2022-09-28T03:58:59.13 1.0 undecidable manual P 52 59.6958 50 -0.19 22
IV.SMA1.EHZ. 2022-09-28T03:58:59.76 0.6 positive manual P 104 59.7957 50 0.42 42
IV.ASSB.HHZ. 2022-09-28T03:58:59.92 0.6 undecidable manual S 5 31.2465 50 0.3 45
IV.MC2.EHZ. 2022-09-28T03:58:57.52 1.0 undecidable manual P 70 48.8178 50 -0.13 23
IV.ARRO.EHZ. 2022-09-28T03:58:57.64 0.6 undecidable manual S 150 23.3544 113 0.31 46
IV.FDMO.HHZ. 2022-09-28T03:58:57.41 1.0 positive manual P 51 48.4182 50 -0.17 23
IV.CESX.HHZ. 2022-09-28T03:58:55.22 0.6 undecidable manual S 190 17.2716 120 -0.23 47
IV.CESI.HHZ. 2022-09-28T03:58:55.51 0.1 undecidable manual P 40 35.2425 50 -0.05 95
IV.NRCA.HHZ. 2022-09-28T03:58:55.77 3.0 undecidable manual P 79 40.626 50 -0.62 0
IV.ASSB.HHZ. 2022-09-28T03:58:54.94 0.1 undecidable manual P 5 31.2465 50 0 97
IV.ARRO.EHZ. 2022-09-28T03:58:53.44 1.0 positive manual P 150 23.3544 113 -0.18 24
IT.GNU.HGE. 2022-09-28T03:58:52.60 0.6 undecidable manual S 316 6.3936 147 0 50
IV.CESX.HHZ. 2022-09-28T03:58:52.45 0.6 positive manual P 190 17.2716 120 -0.08 49
IT.GNU.HGE. 2022-09-28T03:58:50.93 0.1 undecidable manual P 316 6.3936 147 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESX.HHN. ML:1.4 0.000236 0.58 AML other m 2022-09-28T03:58:56.60
IV.CESX.HHE. ML:1.4 0.000202 0.38 AML other m 2022-09-28T03:58:57.20
IV.ARRO.EHE. ML:1.1 0.0000782 1.36 AML other m 2022-09-28T03:58:58.26
IV.ARRO.EHN. ML:1.2 0.00008999999999999999 0.18 AML other m 2022-09-28T03:58:58.24
IV.NRCA.HHE. ML:1.1 0.00004655 0.42 AML other m 2022-09-28T03:59:03.09
IV.NRCA.HHN. ML:1.1 0.000041800000000000006 0.52 AML other m 2022-09-28T03:59:06.44
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