Earthquake with magnitude of Md 1.1 on date 11-04-2024 and time 12:26:47 (UTC) in region 6 km NE Norcia (PG)

A magnitude Md 1.1 earthquake occured in region: 6 km NE Norcia (PG), on

  • 11-04-2024 12:26:47 (UTC)
  • 11-04-2024 14:26:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8450, 13.1150 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 6 4957 4957
Castelsantangelo sul Nera MC 7 281 5238
Preci PG 7 724 5962
Visso MC 10 1107 7069
Ussita MC 11 444 7513
Sellano PG 16 1079 8592
Cascia PG 16 3217 11809
Cerreto di Spoleto PG 16 1075 12884
Arquata del Tronto AP 17 1178 14062
Montegallo AP 18 523 14585
Montemonaco AP 18 604 15189
Monte Cavallo MC 19 145 15334
Bolognola MC 19 142 15476
Accumoli RI 20 667 16143

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
50 Km NE of Terni (111501 inhabitants)
52 Km W of Teramo (54892 inhabitants)
60 Km NW of L'Aquila (69753 inhabitants)
66 Km E of Perugia (166134 inhabitants)
92 Km SW of Ancona (100861 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
95 Km NE of Viterbo (67173 inhabitants)
99 Km NE of Guidonia Montecelio (88673 inhabitants)
99 Km W of Pescara (121014 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
Md 1.1 2024-04-11
12:26:47
42.8447 13.1153 9 2024-04-11
13:36:04
Sala Sismica INGV-Roma 126646411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-11 12:26:47 ± 0.11
Latitude 42.8447 ± 0.0045
Longitude 13.1153 ± 0.0037
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126646411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 409
Semi-minor axis of confidence ellipse (meter) 351
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 173
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.01079
Epicentral distance of station farthest from the epicenter (degree) 0.24821
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

Md:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 3
Type of magnitude Md
Reference to an origin 126646411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-11 13:36:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HNZ. 2024-04-11T12:26:56.77 0.6 undecidable manual S 316 24.6531 109 0.01 49
7F.SIB2.EHZ. 2024-04-11T12:26:53.91 0.3 undecidable manual S 71 16.1727 118 -0.13 73
7F.SIB1.EHZ. 2024-04-11T12:26:53.56 0.6 undecidable manual S 66 13.7751 122 0.24 48
IV.LNSS.HNN. 2024-04-11T12:26:53.47 1.0 undecidable manual P 193 27.5502 107 -0.01 25
7F.SIB3.EHZ. 2024-04-11T12:26:52.99 0.6 undecidable manual S 75 12.9759 123 -0.11 49
IV.CESI.HNZ. 2024-04-11T12:26:52.94 0.1 undecidable manual P 316 24.6531 109 0.01 99
ZO.PDN12.EHZ. 2024-04-11T12:26:51.28 0.6 undecidable manual P 261 16.3725 117 -0.12 49
7F.SIB2.EHZ. 2024-04-11T12:26:51.28 0.1 undecidable manual P 71 16.1727 118 -0.08 98
7F.SIB1.EHZ. 2024-04-11T12:26:51.12 0.1 undecidable manual P 66 13.7751 122 0.18 97
7F.SIB3.EHZ. 2024-04-11T12:26:50.80 0.6 undecidable manual P 75 12.9759 123 -0.02 50
IV.NRCA.HHZ. 2024-04-11T12:26:50.63 0.3 undecidable manual S 184 1.1988 172 -0.06 76
IV.NRCA.HHZ. 2024-04-11T12:26:49.56 0.1 undecidable manual P 184 1.1988 172 0.13 100
IV.MC2.EHZ. 2024-04-11T12:26:49.96 1.0 undecidable manual P 39 9.4794 132 -0.3 24
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