Earthquake with magnitude of ML 0.6 on date 17-04-2023 and time 04:32:03 (Italy) in region 4 km SE Sellano (PG)

A magnitude ML 0.6 earthquake occured in region: 4 km SE Sellano (PG), on

  • 17-04-2023 02:32:03 (UTC)
  • 17-04-2023 04:32:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8550, 12.9510 at 9 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
Cerreto di Spoleto PG 5 1075 2154
Preci PG 8 724 2878
Vallo di Nera PG 12 364 3242
Norcia PG 14 4957 8199
Visso MC 14 1107 9306
Campello sul Clitunno PG 15 2442 11748
Poggiodomo PG 16 117 11865
Cascia PG 16 3217 15082
Monte Cavallo MC 16 145 15227
Sant'Anatolia di Narco PG 16 564 15791
Trevi PG 17 8469 24260
Castelsantangelo sul Nera MC 17 281 24541
Ussita MC 18 444 24985
Scheggino PG 19 461 25446

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Foligno (57155 inhabitants)
41 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)
85 Km NE of Viterbo (67173 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
97 Km N of Guidonia Montecelio (88673 inhabitants)
100 Km N of Tivoli (56533 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 0.6 2023-04-17
02:32:03
42.8552 12.9508 9 2024-03-01
17:18:08
Bollettino Sismico Italiano INGV 117283901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-17 02:32:03 ± 0.24
Latitude 42.8552 ± 0.0036
Longitude 12.9508 ± 0.0086
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117283901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 627
Semi-minor axis of confidence ellipse (meter) 213
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 277
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.12141
Epicentral distance of station farthest from the epicenter (degree) 0.20684
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 117283901
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-05-12 10:50:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2023-04-17T02:32:11.77 0.6 undecidable manual S 29 22.9548 112 -0.23 48
IV.GAVE.HNZ. 2023-04-17T02:32:10.37 0.6 undecidable manual S 194 18.6702 116 -0.26 48
IV.CESI.HHZ. 2023-04-17T02:32:10.19 0.6 undecidable manual S 347 17.0718 118 0.06 50
IV.NRCA.HHZ. 2023-04-17T02:32:09.18 0.6 undecidable manual S 100 13.4754 124 0.1 50
IV.FDMO.HHZ. 2023-04-17T02:32:08.24 0.1 undecidable manual P 29 22.9548 112 -0.13 98
IV.CESI.HHZ. 2023-04-17T02:32:07.47 0.3 positive manual P 347 17.0718 118 0.17 73
IV.GAVE.HNZ. 2023-04-17T02:32:07.65 0.1 undecidable manual P 194 18.6702 116 0.07 100
IV.NRCA.HHZ. 2023-04-17T02:32:06.78 0.1 undecidable manual P 100 13.4754 124 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.5 0.000035703635 0.08 AML other m 2023-04-17T02:32:09.28
IV.NRCA.HHE. ML:0.6 0.000044050920000000003 0.1408 AML other m 2023-04-17T02:32:09.31
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