Earthquake with magnitude of ML 1.1 on date 27-02-2024 and time 11:11:26 (UTC) in region 4 km W Arquata del Tronto (AP)

A magnitude ML 1.1 earthquake occured in region: 4 km W Arquata del Tronto (AP), on

  • 27-02-2024 11:11:26 (UTC)
  • 27-02-2024 12:11:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7760, 13.2450 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
Arquata del Tronto AP 4 1178 1178
Accumoli RI 9 667 1845
Montegallo AP 10 523 2368
Norcia PG 13 4957 7325
Acquasanta Terme AP 14 2916 10241
Castelsantangelo sul Nera MC 15 281 10522
Montemonaco AP 15 604 11126
Amatrice RI 17 2657 13783
Cittareale RI 19 482 14265
Cascia PG 20 3217 17482

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km W of Teramo (54892 inhabitants)
48 Km E of Foligno (57155 inhabitants)
49 Km N of L'Aquila (69753 inhabitants)
54 Km E of Terni (111501 inhabitants)
79 Km E of Perugia (166134 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
87 Km W of Pescara (121014 inhabitants)
89 Km NW of Chieti (51815 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km S of Ancona (100861 inhabitants)
97 Km NE 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 2024-02-27
11:11:26
42.7758 13.2448 11 2024-02-27
11:18:04
Sala Sismica INGV-Roma 125574481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-27 11:11:26 ± 0.03
Latitude 42.7758 ± 0.0018
Longitude 13.2448 ± 0.0025
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 125574481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 207
Semi-minor axis of confidence ellipse (meter) 176
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 62
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.09173
Epicentral distance of station farthest from the epicenter (degree) 0.31746
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 125574481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-27 11:18:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2024-02-27T11:11:38.13 0.6 undecidable manual S 120 33.8439 50 -0.07 48
IV.CSP1.EHZ. 2024-02-27T11:11:38.51 0.6 undecidable manual S 355 35.2425 50 -0.05 48
IV.RM33.EHZ. 2024-02-27T11:11:37.18 0.6 undecidable manual S 185 29.748 50 0.08 48
IV.LNSS.HHZ. 2024-02-27T11:11:35.92 0.6 undecidable manual S 221 25.4523 50 -0.03 49
IV.MMO1.EHZ. 2024-02-27T11:11:33.08 0.6 undecidable manual S 26 15.2736 126 -0.08 49
IV.TERO.HHZ. 2024-02-27T11:11:33.09 0.6 undecidable manual P 120 33.8439 50 -0.23 46
IV.MC2.EHZ. 2024-02-27T11:11:33.38 0.6 undecidable manual S 343 15.6732 125 0.09 49
IV.SMA1.EHZ. 2024-02-27T11:11:33.79 0.6 undecidable manual S 155 17.7711 122 -0.09 49
IV.CSP1.EHZ. 2024-02-27T11:11:33.36 0.1 undecidable manual P 355 35.2425 50 -0.17 93
IV.RM33.EHZ. 2024-02-27T11:11:32.63 0.1 undecidable manual P 185 29.748 50 -0.06 96
IV.MTRA.HNE. 2024-02-27T11:11:32.35 0.3 undecidable manual S 100 12.5763 131 -0.07 74
IV.MF5.EHZ. 2024-02-27T11:11:32.86 0.1 undecidable manual P 37 29.2485 50 0.24 93
7F.SIB1.EHE. 2024-02-27T11:11:32.88 0.6 undecidable manual S 9 13.3755 129 0.24 48
IV.NRCA.HHZ. 2024-02-27T11:11:32.12 0.6 undecidable manual S 301 12.3765 131 -0.27 47
IV.LNSS.HHZ. 2024-02-27T11:11:32.06 0.1 undecidable manual P 221 25.4523 50 0.03 97
7F.SIB2.EHE. 2024-02-27T11:11:32.53 0.3 undecidable manual S 21 13.6752 129 -0.19 72
ZO.PDN11.EHE. 2024-02-27T11:11:31.86 0.6 undecidable manual S 275 10.1787 137 0.02 50
IV.SMA1.EHZ. 2024-02-27T11:11:31.07 0.6 negative manual P 155 17.7711 122 0.24 47
7F.SIB3.EHE. 2024-02-27T11:11:31.98 0.6 undecidable manual S 11 11.1777 134 -0.1 49
7F.SIB2.EHE. 2024-02-27T11:11:30.11 0.1 undecidable manual P 21 13.6752 129 -0.05 99
IV.MMO1.EHZ. 2024-02-27T11:11:30.39 0.3 undecidable manual P 26 15.2736 126 -0.02 74
IV.MC2.EHZ. 2024-02-27T11:11:30.60 0.1 undecidable manual P 343 15.6732 125 0.11 97
IV.MTRA.HNE. 2024-02-27T11:11:30.05 0.1 undecidable manual P 100 12.5763 131 0.06 99
7F.SIB1.EHE. 2024-02-27T11:11:30.23 0.1 undecidable manual P 9 13.3755 129 0.12 98
7F.SIB3.EHE. 2024-02-27T11:11:29.82 0.1 undecidable manual P 11 11.1777 134 0.03 100
IV.NRCA.HHZ. 2024-02-27T11:11:29.92 0.6 undecidable manual P 301 12.3765 131 -0.05 50
ZO.PDN11.EHE. 2024-02-27T11:11:29.68 0.1 undecidable manual P 275 10.1787 137 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.4 0.0002465 0.08 AML other m 2024-02-27T11:11:32.70
IV.NRCA.HHN. ML:1.2 0.000188 0.84 AML other m 2024-02-27T11:11:33.59
IV.MMO1.EHE. ML:1.1 0.000122974275 0.0768 AML other m 2024-02-27T11:11:33.14
IV.MMO1.EHN. ML:0.9 0.00007323041500000001 0.064 AML other m 2024-02-27T11:11:33.22
IV.NRCA.HNE. ML:1.3 0.00021638492 0.0896 AML other m 2024-02-27T11:11:32.70
IV.NRCA.HNN. ML:1.2 0.00017693245499999998 0.5312 AML other m 2024-02-27T11:11:32.45
IV.LNSS.HHE. ML:0.9 0.000050729035 0.1344 AML other m 2024-02-27T11:11:36.76
IV.LNSS.HHN. ML:1.1 0.000066065875 0.1344 AML other m 2024-02-27T11:11:36.68
IV.RM33.EHE. ML:0.9 0.000037829519999999996 0.1152 AML other m 2024-02-27T11:11:37.65
IV.RM33.EHN. ML:1.1 0.0000553681 0.16 AML other m 2024-02-27T11:11:37.37
IV.TERO.HHE. ML:1.0 0.00004260087 0.0768 AML other m 2024-02-27T11:11:38.63
IV.TERO.HHN. ML:0.9 0.00003195721 0.5184 AML other m 2024-02-27T11:11:38.80
IV.CSP1.EHE. ML:1.1 0.000056019695 0.96 AML other m 2024-02-27T11:11:39.28
IV.CSP1.EHN. ML:1.3 0.00008264183 0.4224 AML other m 2024-02-27T11:11:39.04
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download