Earthquake with magnitude of ML 1.1 on date 25-05-2024 and time 14:20:20 (UTC) in region 3 km NW Norcia (PG)

A magnitude ML 1.1 earthquake occured in region: 3 km NW Norcia (PG), on

  • 25-05-2024 14:20:20 (UTC)
  • 25-05-2024 16:20:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8120, 13.0700 at 11 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 3 4957 4957
Preci PG 8 724 5681
Cascia PG 11 3217 8898
Castelsantangelo sul Nera MC 12 281 9179
Cerreto di Spoleto PG 13 1075 10254
Visso MC 13 1107 11361
Sellano PG 14 1079 12440
Poggiodomo PG 16 117 12557
Ussita MC 16 444 13001
Vallo di Nera PG 18 364 13365
Arquata del Tronto AP 19 1178 14543
Accumoli RI 20 667 15210

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
44 Km NE of Terni (111501 inhabitants)
55 Km W of Teramo (54892 inhabitants)
58 Km NW of L'Aquila (69753 inhabitants)
64 Km SE of Perugia (166134 inhabitants)
90 Km E of Viterbo (67173 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
97 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
Reviewed
Rev100
ML 1.1 2024-05-25
14:20:20
42.8125 13.0697 11 2024-05-25
14:25:48
Sala Sismica INGV-Roma 128158281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-05-25 14:20:20 ± 0.05
Latitude 42.8125 ± 0.0027
Longitude 13.0697 ± 0.0061
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 128158281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 485
Semi-minor axis of confidence ellipse (meter) 309
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 100
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
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) 0.22753
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 128158281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-05-25 14:25:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2024-05-25T14:20:29.84 0.3 undecidable manual S 3 24.8529 91 -0.13 71
IV.CESI.HHZ. 2024-05-25T14:20:29.95 0.6 undecidable manual S 328 25.2525 91 -0.11 48
IV.LNSS.HHZ. 2024-05-25T14:20:29.52 0.6 undecidable manual S 186 23.3544 91 -0.05 49
7F.SIB2.EHN. 2024-05-25T14:20:28.77 0.3 undecidable manual S 65 20.9679 91 -0.15 71
IV.MC2.EHE. 2024-05-25T14:20:27.35 0.3 undecidable manual S 41 14.6742 97 0.11 74
IV.SMA1.EHZ. 2024-05-25T14:20:26.18 3.0 negative manual P -0.35 0
IV.FDMO.HHZ. 2024-05-25T14:20:26.12 0.6 positive manual P 3 24.8529 91 0 49
IV.CESI.HHZ. 2024-05-25T14:20:26.13 0.1 positive manual P 328 25.2525 91 -0.05 97
IV.LNSS.HHZ. 2024-05-25T14:20:25.91 0.1 undecidable manual P 186 23.3544 91 0.02 98
7F.SIB2.EHN. 2024-05-25T14:20:25.52 0.1 undecidable manual P 65 20.9679 91 0 98
IV.NRCA.HHZ. 2024-05-25T14:20:24.73 0.6 undecidable manual S 57 4.2957 152 -0.31 49
IV.MC2.EHE. 2024-05-25T14:20:24.82 0.1 undecidable manual P 41 14.6742 97 0.27 95
ZO.PDN11.EHZ. 2024-05-25T14:20:24.96 0.6 undecidable manual S 128 5.1948 147 -0.2 50
IV.NRCA.HHZ. 2024-05-25T14:20:23.34 0.1 undecidable manual P 57 4.2957 152 0.06 100
ZO.PDN11.EHZ. 2024-05-25T14:20:23.40 0.1 undecidable manual P 128 5.1948 147 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.4 0.0004275 0.1 AML other m 2024-05-25T14:20:24.83
IV.NRCA.HHN. ML:1.5 0.00045400000000000003 0.08 AML other m 2024-05-25T14:20:24.82
IV.LNSS.HHN. ML:1.0 0.000061 0.14 AML other m 2024-05-25T14:20:29.83
IV.LNSS.HHE. ML:1.2 0.00008845 0.14 AML other m 2024-05-25T14:20:29.94
IV.FDMO.HHN. ML:0.6 0.00002655029 0.12 AML other m 2024-05-25T14:20:30.15
IV.FDMO.HHE. ML:0.8 0.000033241015 0.16 AML other m 2024-05-25T14:20:29.00
IV.CESI.HHE. ML:0.6 0.0000216 0.16 AML other m 2024-05-25T14:20:30.50
IV.CESI.HHN. ML:0.6 0.000021514160000000002 0.2 AML other m 2024-05-25T14:20:30.50
IV.NRCA.HNE. ML:1.4 0.0004237859 0.08 AML other m 2024-05-25T14:20:24.84
IV.NRCA.HNN. ML:1.4 0.000387173255 0.07 AML other m 2024-05-25T14:20:24.83
IV.LNSS.HNE. ML:1.2 0.00010285512 0.73 AML other m 2024-05-25T14:20:28.87
IV.LNSS.HNN. ML:1.4 0.00015292855500000002 0.66 AML other m 2024-05-25T14:20:28.47
IV.CESI.HNE. ML:1.3 0.00010952905 0.67 AML other m 2024-05-25T14:20:35.66
IV.CESI.HNN. ML:1.2 0.0000904982475 0.73 AML other m 2024-05-25T14:20:34.32
IV.SMA1.EHE. ML:0.7 0.000024740644999999998 0.28 AML other m 2024-05-25T14:20:36.27
IV.SMA1.EHN. ML:0.6 0.00002028397 0.38 AML other m 2024-05-25T14:20:34.59
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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