Earthquake with magnitude of ML 1.0 on date 25-01-2024 and time 21:31:31 (Italy) in region 8 km SE Norcia (PG)

A magnitude ML 1.0 earthquake occured in region: 8 km SE Norcia (PG), on

  • 25-01-2024 20:31:31 (UTC)
  • 25-01-2024 21:31:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7550, 13.1740 at 10 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 8 4957 4957
Accumoli RI 9 667 5624
Arquata del Tronto AP 10 1178 6802
Cascia PG 14 3217 10019
Cittareale RI 15 482 10501
Castelsantangelo sul Nera MC 16 281 10782
Montegallo AP 16 523 11305
Amatrice RI 17 2657 13962
Preci PG 18 724 14686
Acquasanta Terme AP 19 2916 17602

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km SE of Foligno (57155 inhabitants)
45 Km W of Teramo (54892 inhabitants)
48 Km E of Terni (111501 inhabitants)
48 Km NW of L'Aquila (69753 inhabitants)
75 Km SE of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
91 Km W of Pescara (121014 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
93 Km W of Chieti (51815 inhabitants)
93 Km NE of Tivoli (56533 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
100 Km S 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 1.0 2024-01-25
20:31:31
42.755 13.1742 10 2024-01-25
20:41:36
Sala Sismica INGV-Roma 124857981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-25 20:31:31 ± 0.09
Latitude 42.7550 ± 0.0045
Longitude 13.1742 ± 0.0086
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124857981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 618
Semi-minor axis of confidence ellipse (meter) 460
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 254
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34174
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 124857981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-25 20:41:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
RF.GEPF.HHZ. 2024-01-25T20:33:12.44 3.0 undecidable manual Sn 5.25 0
IV.MMGO.HHZ. 2024-01-25T20:32:53.59 3.0 undecidable manual Pn 6.82 0
IV.SPS2.HHZ. 2024-01-25T20:32:37.63 3.0 negative manual Pn 3.12 0
MN.TRI.HHZ. 2024-01-25T20:32:27.59 3.0 positive manual Pg 9.77 0
OX.SABO.HNZ. 2024-01-25T20:32:22.96 3.0 undecidable manual Pn 1.49 0
IV.CRTC.HHZ. 2024-01-25T20:32:05.80 3.0 undecidable manual S -0.82 0
IV.BRSN.HNZ. 2024-01-25T20:32:02.79 3.0 undecidable manual Pg 2.09 0
IV.MF5.EHZ. 2024-01-25T20:31:44.06 0.3 undecidable manual S 42 34.743 50 0.68 62
IV.CSP1.EHZ. 2024-01-25T20:31:44.05 0.3 undecidable manual S 4 37.4292 50 -0.07 72
IV.FDMO.HHZ. 2024-01-25T20:31:42.29 0.6 undecidable manual S 347 32.0457 50 -0.37 46
IV.MMO1.EHZ. 2024-01-25T20:31:39.14 0.3 undecidable manual S 38 20.2686 117 -0.18 73
IV.LNSS.HHZ. 2024-01-25T20:31:39.43 0.6 undecidable manual S 213 20.0688 117 0.16 49
IV.SMA1.EHZ. 2024-01-25T20:31:38.91 0.3 undecidable manual S 136 19.0698 118 -0.04 75
IV.CSP1.EHZ. 2024-01-25T20:31:38.54 0.6 negative manual P 4 37.4292 50 -0.22 47
IV.MF5.EHZ. 2024-01-25T20:31:38.74 0.6 positive manual P 42 34.743 50 0.4 45
IV.TERO.HHZ. 2024-01-25T20:31:38.43 0.3 undecidable manual P 113 37.9287 50 -0.41 67
IV.FDMO.HHZ. 2024-01-25T20:31:37.64 1.0 undecidable manual P 347 32.0457 50 -0.28 23
IV.NRCA.HHZ. 2024-01-25T20:31:36.40 0.6 undecidable manual S 331 9.9789 135 0 51
IV.LNSS.HHZ. 2024-01-25T20:31:36.00 0.1 undecidable manual P 213 20.0688 117 0.04 100
IV.SMA1.EHZ. 2024-01-25T20:31:35.77 0.6 positive manual P 136 19.0698 118 0 50
IV.MMO1.EHZ. 2024-01-25T20:31:35.91 0.6 positive manual P 38 20.2686 117 -0.09 49
IV.NRCA.HHZ. 2024-01-25T20:31:34.47 0.1 undecidable manual P 331 9.9789 135 0.16 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.1 0.000175086205 0.0896 AML other m 2024-01-25T20:31:36.58
IV.NRCA.HHN. ML:1.2 0.000203 0.06 AML other m 2024-01-25T20:31:36.48
IV.LNSS.HHN. ML:0.7 0.000040009405 0.1792 AML other m 2024-01-25T20:31:39.88
IV.LNSS.HHE. ML:0.8 0.00005225 0.1 AML other m 2024-01-25T20:31:39.82
IV.NRCA.HNE. ML:1.1 0.0001668457 0.064 AML other m 2024-01-25T20:31:36.56
IV.NRCA.HNN. ML:1.1 0.00017308426999999998 0.064 AML other m 2024-01-25T20:31:36.48
IV.SMA1.EHE. ML:0.3 0.00001641465 0.0768 AML other m 2024-01-25T20:31:40.15
IV.SMA1.EHN. ML:0.3 0.000015256674000000001 0.1408 AML other m 2024-01-25T20:31:39.99
IV.LNSS.HNN. ML:1.3 0.00014677077 5.2992 AML other m 2024-01-25T20:31:43.18
IV.CSP1.EHN. ML:0.9 0.000027527525000000005 0.2304 AML other m 2024-01-25T20:31:44.76
IV.MF5.EHE. ML:0.9 0.00003306269250000001 1.4976 AML other m 2024-01-25T20:31:55.66
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download