Earthquake with magnitude of ML 1.1 on date 08-04-2023 and time 00:00:00 (Italy) in region 6 km W Sellano (PG)

A magnitude ML 1.1 earthquake occured in region: 6 km W Sellano (PG), on

  • 07-04-2023 22:00:00 (UTC)
  • 08-04-2023 00:00:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9040, 12.8520 at 14 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 6 1079 1079
Trevi PG 9 8469 9548
Cerreto di Spoleto PG 11 1075 10623
Campello sul Clitunno PG 11 2442 13065
Foligno PG 13 57155 70220
Vallo di Nera PG 15 364 70584
Preci PG 16 724 71308
Monte Cavallo MC 16 145 71453
Montefalco PG 16 5679 77132
Castel Ritaldi PG 17 3278 80410
Spello PG 18 8645 89055
Valtopina PG 19 1398 90453
Sant'Anatolia di Narco PG 19 564 91017
Visso MC 20 1107 92124

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km E of Foligno (57155 inhabitants)
42 Km NE of Terni (111501 inhabitants)
44 Km SE of Perugia (166134 inhabitants)
75 Km W of Teramo (54892 inhabitants)
76 Km NW of L'Aquila (69753 inhabitants)
82 Km NE of Viterbo (67173 inhabitants)
96 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
Bulletin
Rev1000
ML 1.1 2023-04-07
22:00:00
42.9045 12.8523 14 2024-03-01
17:18:06
Bollettino Sismico Italiano INGV 117143001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-07 22:00:00 ± 0.05
Latitude 42.9045 ± 0.0027
Longitude 12.8523 ± 0.0037
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117143001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 299
Semi-minor axis of confidence ellipse (meter) 78
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 315
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.53420
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 117143001
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-05-08 08:49:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GSCL.HHZ. 2023-04-07T22:01:05.09 3.0 undecidable manual Sn -0.81 0
IV.CMPR.HHZ. 2023-04-07T22:00:57.25 3.0 positive manual Pg 5.92 0
IV.RIBO.EHZ.01 2023-04-07T22:00:45.66 3.0 undecidable manual S 1.6 0
IV.MCRV.HHZ. 2023-04-07T22:00:42.84 3.0 undecidable manual Pn -2.58 0
IV.TREM.HHZ. 2023-04-07T22:00:40.22 3.0 positive manual Pg 2.96 0
IV.BARO.EHZ. 2023-04-07T22:00:28.76 3.0 undecidable manual S -2.24 0
TV.SF11.HHZ. 2023-04-07T22:00:28.48 3.0 undecidable manual S -1.86 0
IV.ARCI.HHZ. 2023-04-07T22:00:22.37 3.0 undecidable manual P 2.2 0
IV.MALA2.EHZ. 2023-04-07T22:00:21.43 3.0 undecidable manual P 1.17 0
IV.ATCC.EHZ. 2023-04-07T22:00:12.67 0.3 undecidable manual S 331 35.5422 96 0.09 71
IV.MOMA.HHZ. 2023-04-07T22:00:10.11 0.3 undecidable manual S 244 25.5522 101 0.18 71
IV.SSFR.HHZ. 2023-04-07T22:00:10.90 0.1 undecidable manual P 355 59.2962 93 -0.26 88
IV.MML1.EHZ. 2023-04-07T22:00:09.96 0.3 undecidable manual S 23 25.1526 101 0.14 71
IV.NRCA.HHZ. 2023-04-07T22:00:09.29 0.3 undecidable manual S 110 22.6551 104 0.1 73
IV.FDMO.HHZ. 2023-04-07T22:00:09.51 0.3 undecidable manual S 52 24.0537 102 -0.03 74
IV.GAVE.EHZ. 2023-04-07T22:00:09.61 0.3 undecidable manual S 172 23.754 102 0.13 73
IV.ASSB.HHZ. 2023-04-07T22:00:08.74 0.3 undecidable manual S 314 21.9669 104 -0.25 71
IV.SNTG.HHZ. 2023-04-07T22:00:08.23 1.0 undecidable manual P 10 39.5271 95 0.1 23
IV.ATCC.EHZ. 2023-04-07T22:00:07.60 0.1 undecidable manual P 331 35.5422 96 0.09 95
IV.ARRO.EHZ. 2023-04-07T22:00:07.37 0.1 undecidable manual P 191 36.741 96 -0.33 90
IV.LNSS.HHZ. 2023-04-07T22:00:07.82 0.6 positive manual P 155 36.8298 96 0.12 47
IT.MTCL.HGZ. 2023-04-07T22:00:07.26 0.6 undecidable manual S 50 15.4734 116 -0.13 49
IV.CSP1.EHZ. 2023-04-07T22:00:07.61 0.1 undecidable manual P 54 35.3424 96 0.13 94
IV.MOMA.HHZ. 2023-04-07T22:00:06.13 0.1 undecidable manual P 244 25.5522 101 0.15 96
IV.CESI.HHZ. 2023-04-07T22:00:06.44 0.3 undecidable manual S 21 11.877 127 -0.13 74
IV.FDMO.HHZ. 2023-04-07T22:00:05.83 0.1 undecidable manual P 52 24.0537 102 0.07 97
IV.GAVE.EHZ. 2023-04-07T22:00:05.79 0.3 undecidable manual P 172 23.754 102 0.07 74
IV.ASSB.HHZ. 2023-04-07T22:00:05.42 0.3 undecidable manual P 314 21.9669 104 -0.02 74
IV.MML1.EHZ. 2023-04-07T22:00:05.92 0.3 undecidable manual P 23 25.1526 101 0 74
IV.NRCA.HHZ. 2023-04-07T22:00:05.25 0.6 undecidable manual P 110 22.6551 104 -0.31 46
IT.MTCL.HGZ. 2023-04-07T22:00:04.51 0.1 undecidable manual P 50 15.4734 116 -0.01 100
IV.CESI.HHZ. 2023-04-07T22:00:04.17 0.1 undecidable manual P 21 11.877 127 0.13 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.6 0.000334 0.36 AML other m 2023-04-07T22:00:06.72
IV.CESI.HHE. ML:1.4 0.00023500000000000002 0.18 AML other m 2023-04-07T22:00:06.73
IV.ASSB.HHN. ML:1.0 0.0000658 0.46 AML other m 2023-04-07T22:00:09.00
IV.ASSB.HHE. ML:1.0 0.000055599999999999996 0.54 AML other m 2023-04-07T22:00:09.32
IV.NRCA.HHN. ML:1.0 0.000058450000000000005 0.68 AML other m 2023-04-07T22:00:09.39
IV.NRCA.HHE. ML:0.9 0.00004685 0.1 AML other m 2023-04-07T22:00:09.90
IV.GAVE.EHE. ML:1.0 0.00006395000000000001 0.46 AML other m 2023-04-07T22:00:10.23
IV.GAVE.EHN. ML:1.0 0.00005328 1.58 AML other m 2023-04-07T22:00:12.80
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