Earthquake with magnitude of ML 0.2 on date 07-04-2023 and time 23:01:45 (Italy) in region 4 km SE Sellano (PG)

A magnitude ML 0.2 earthquake occured in region: 4 km SE Sellano (PG), on

  • 07-04-2023 21:01:45 (UTC)
  • 07-04-2023 23:01:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8660, 12.9650 at 11 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 4 1079 1079
Preci PG 6 724 1803
Cerreto di Spoleto PG 6 1075 2878
Visso MC 13 1107 3985
Norcia PG 13 4957 8942
Vallo di Nera PG 14 364 9306
Monte Cavallo MC 15 145 9451
Castelsantangelo sul Nera MC 16 281 9732
Campello sul Clitunno PG 16 2442 12174
Ussita MC 17 444 12618
Cascia PG 17 3217 15835
Poggiodomo PG 17 117 15952
Trevi PG 18 8469 24421
Sant'Anatolia di Narco PG 18 564 24985

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Foligno (57155 inhabitants)
43 Km NE of Terni (111501 inhabitants)
54 Km SE of Perugia (166134 inhabitants)
65 Km W of Teramo (54892 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
86 Km NE of Viterbo (67173 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
98 Km N of Guidonia Montecelio (88673 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 0.2 2023-04-07
21:01:45
42.8662 12.9652 11 2024-03-01
17:18:06
Bollettino Sismico Italiano INGV 117142951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-07 21:01:45 ± 0.06
Latitude 42.8662 ± 0.0027
Longitude 12.9652 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117142951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 367
Semi-minor axis of confidence ellipse (meter) 230
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 260
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 19
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) 0.26890
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.2

Field Value
Value 0.2
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 117142951
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-05-08 08:43:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RIBO.EHZ.01 2023-04-07T21:02:31.85 3.0 undecidable manual S 0.17 0
IV.RCAV.EHZ. 2023-04-07T21:02:19.33 3.0 undecidable manual S -3.06 0
IV.NARO.HHZ. 2023-04-07T21:02:00.88 3.0 undecidable manual P -0.68 0
IV.MMO1.HNZ. 2023-04-07T21:01:56.17 0.6 undecidable manual S 83 29.6481 50 0.03 50
IV.LNSS.HNZ. 2023-04-07T21:01:56.01 0.6 undecidable manual S 168 29.8479 50 -0.2 48
IV.MML1.HNZ. 2023-04-07T21:01:55.68 0.6 undecidable manual S 1 27.4503 50 0.12 49
7F.SIB2.EHZ. 2023-04-07T21:01:55.31 0.6 undecidable manual S 84 27.6501 50 -0.31 47
7F.SIB1.EHZ. 2023-04-07T21:01:54.75 0.6 undecidable manual S 83 24.9528 50 -0.16 48
IV.GAVE.EHZ. 2023-04-07T21:01:53.55 0.6 undecidable manual S 197 20.1687 50 -0.07 50
IV.FDMO.HHZ. 2023-04-07T21:01:53.69 0.6 undecidable manual S 28 21.3675 50 -0.25 48
IV.LNSS.HNZ. 2023-04-07T21:01:52.05 0.6 undecidable manual P 168 29.8479 50 0.25 47
IV.CESI.HHZ. 2023-04-07T21:01:52.46 0.3 undecidable manual S 342 16.1727 50 -0.09 75
7F.SIB2.EHZ. 2023-04-07T21:01:51.41 0.1 undecidable manual P 84 27.6501 50 -0.05 99
IV.MMO1.HNZ. 2023-04-07T21:01:51.80 0.1 undecidable manual P 83 29.6481 50 0.04 99
IV.NRCA.HHZ. 2023-04-07T21:01:51.48 0.3 undecidable manual S 107 12.6762 131 -0.11 76
7F.SIB3.EHZ. 2023-04-07T21:01:51.11 0.1 undecidable manual P 88 24.753 50 0.09 98
IV.MML1.HNZ. 2023-04-07T21:01:51.46 0.1 undecidable manual P 1 27.4503 50 0.04 99
7F.SIB1.EHZ. 2023-04-07T21:01:51.42 0.1 undecidable manual P 83 24.9528 50 0.38 93
IV.FDMO.HHZ. 2023-04-07T21:01:50.51 0.6 positive manual P 28 21.3675 50 0.03 50
IV.GAVE.EHZ. 2023-04-07T21:01:50.22 0.1 undecidable manual P 197 20.1687 50 -0.08 100
IV.CESI.HHZ. 2023-04-07T21:01:49.63 0.3 undecidable manual P 342 16.1727 50 -0.05 76
IV.NRCA.HHZ. 2023-04-07T21:01:49.23 0.1 negative manual P 107 12.6762 131 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:0.1 0.00001246472 1.4976 AML other m 2023-04-07T21:01:52.62
IV.CESI.HHE. ML:0.1 0.000009832276000000002 1.1392 AML other m 2023-04-07T21:01:53.26
IV.FDMO.HHN. ML:0.2 0.000008994976 2.0992 AML other m 2023-04-07T21:01:54.03
IV.FDMO.HHE. ML:0.4 0.000012748024999999999 0.1792 AML other m 2023-04-07T21:01:53.95
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