Earthquake with magnitude of ML 1.1 on date 15-04-2024 and time 05:31:16 (UTC) in region 4 km W Norcia (PG)

A magnitude ML 1.1 earthquake occured in region: 4 km W Norcia (PG), on

  • 15-04-2024 05:31:16 (UTC)
  • 15-04-2024 07:31:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7850, 13.0520 at 8 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
Norcia PG 4 4957 4957
Cascia PG 8 3217 8174
Preci PG 11 724 8898
Cerreto di Spoleto PG 12 1075 9973
Poggiodomo PG 12 117 10090
Castelsantangelo sul Nera MC 15 281 10371
Sellano PG 16 1079 11450
Vallo di Nera PG 16 364 11814
Visso MC 17 1107 12921
Monteleone di Spoleto PG 17 599 13520
Sant'Anatolia di Narco PG 19 564 14084
Accumoli RI 19 667 14751
Ussita MC 19 444 15195
Scheggino PG 20 461 15656

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km SE of Foligno (57155 inhabitants)
41 Km NE of Terni (111501 inhabitants)
55 Km W of Teramo (54892 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
65 Km SE of Perugia (166134 inhabitants)
88 Km E of Viterbo (67173 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
94 Km N of Tivoli (56533 inhabitants)
95 Km W of Montesilvano (53738 inhabitants)
100 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 1.1 2024-04-15
05:31:16
42.7847 13.0523 8 2024-04-15
05:37:43
Sala Sismica INGV-Roma 126741961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-15 05:31:16 ± 0.24
Latitude 42.7847 ± 0.0126
Longitude 13.0523 ± 0.0110
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126741961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1096
Semi-minor axis of confidence ellipse (meter) 975
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 174
Circular confidence region, given by single value of horizontal uncertainty (meter) 1100.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 208
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25900
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 126741961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-15 05:37:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.MUGIO.HHZ. 2024-04-15T05:33:07.24 3.0 undecidable manual Sn -1.75 0
IV.PLAC.HHZ. 2024-04-15T05:32:33.34 3.0 positive manual Pg 9.69 0
4P.IT08A.HHZ. 2024-04-15T05:32:32.43 3.0 undecidable manual Sg 11.79 0
IV.SBPO.HNZ. 2024-04-15T05:32:32.17 3.0 undecidable manual Sn 0.4 0
IV.PTRP.HHZ. 2024-04-15T05:32:09.14 3.0 positive manual Pg 11.03 0
IV.SCHR.EHZ. 2024-04-15T05:32:08.86 3.0 undecidable manual Pg 7.33 0
IV.ZEN8.EHZ. 2024-04-15T05:32:04.27 3.0 positive manual Pn -0.6 0
IV.CSNT.HHZ. 2024-04-15T05:32:00.94 3.0 undecidable manual Sn 0.09 0
GU.GSCL.HHZ. 2024-04-15T05:32:00.28 3.0 negative manual Pg 7.88 0
IV.MGR.HHZ. 2024-04-15T05:31:54.20 3.0 undecidable manual Pn -4.74 0
IV.NARO.HHZ. 2024-04-15T05:31:45.04 3.0 undecidable manual Sn -1.34 0
IV.NARO.HHZ. 2024-04-15T05:31:32.86 3.0 positive manual Pg 1.16 0
7F.SIB2.EHE. 2024-04-15T05:31:25.51 0.6 undecidable manual S 60 23.6541 109 0 50
IV.TERO.HHZ. 2024-04-15T05:31:25.24 1.0 undecidable manual S 0.13 0.65
IV.CESX.HHZ. 2024-04-15T05:31:23.87 3.0 positive manual P -0.15 0
IV.MC2.EHE. 2024-04-15T05:31:23.47 0.6 undecidable manual S 38 17.9709 114 -0.2 49
IV.FDMO.HHZ. 2024-04-15T05:31:22.56 1.0 undecidable manual P 6 28.0497 106 -0.14 24
7F.SIB2.EHE. 2024-04-15T05:31:22.35 0.6 undecidable manual P 60 23.6541 109 0.5 45
IV.CESI.HHZ. 2024-04-15T05:31:22.55 0.1 positive manual P 334 27.2505 107 0.01 100
IV.SMA1.EHZ. 2024-04-15T05:31:22.42 1.0 undecidable manual P 126 28.749 106 -0.41 23
IV.FAGN.HHZ. 2024-04-15T05:31:21.96 3.0 undecidable manual P -1.22 0
IV.NRCA.HHZ. 2024-04-15T05:31:20.70 0.6 undecidable manual S 43 7.3815 138 0.04 51
IV.MC2.EHE. 2024-04-15T05:31:20.69 0.3 undecidable manual P 38 17.9709 114 -0.1 75
IV.NRCA.HHZ. 2024-04-15T05:31:19.23 1.0 undecidable manual P 43 7.3815 138 0.18 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.2 0.0002405 0.14 AML other m 2024-04-15T05:31:20.73
IV.NRCA.HHE. ML:1.0 0.00015900000000000002 0.1 AML other m 2024-04-15T05:31:20.87
IV.CAMP.HHN. ML:1.2 0.0000586 0.24 AML other m 2024-04-15T05:31:24.79
IV.CAMP.HHE. ML:0.9 0.00002955 0.22 AML other m 2024-04-15T05:31:24.79
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