Earthquake with magnitude of ML 0.5 on date 24-11-2023 and time 06:44:55 (UTC) in region 3 km E Accumoli (RI)

A magnitude ML 0.5 earthquake occured in region: 3 km E Accumoli (RI), on

  • 24-11-2023 06:44:55 (UTC)
  • 24-11-2023 07:44:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7080, 13.2840 at 9 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
Accumoli RI 3 667 667
Arquata del Tronto AP 7 1178 1845
Amatrice RI 9 2657 4502
Acquasanta Terme AP 12 2916 7418
Cittareale RI 14 482 7900
Montegallo AP 16 523 8423
Valle Castellana TE 18 977 9400
Campotosto AQ 18 542 9942
Norcia PG 18 4957 14899

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km W of Teramo (54892 inhabitants)
41 Km N of L'Aquila (69753 inhabitants)
55 Km E of Terni (111501 inhabitants)
55 Km SE of Foligno (57155 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
81 Km W of Pescara (121014 inhabitants)
83 Km W of Chieti (51815 inhabitants)
85 Km SE of Perugia (166134 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
92 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 0.5 2023-11-24
06:44:55
42.7082 13.2843 9 2023-11-24
07:06:05
Sala Sismica INGV-Roma 123381691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-11-24 06:44:55 ± 0.25
Latitude 42.7082 ± 0.0045
Longitude 13.2843 ± 0.0073
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123381691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 629
Semi-minor axis of confidence ellipse (meter) 202
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) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.20774
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 123381691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-11-24 07:06:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2023-11-24T06:45:08.28 3.0 undecidable manual P -0.13 0
IV.LNSS.HHZ. 2023-11-24T06:45:03.96 0.3 undecidable manual S 240 23.0547 111 0.16 76
IV.RM33.EHZ. 2023-11-24T06:45:03.49 0.6 undecidable manual S 194 22.8549 111 -0.23 50
IV.NRCA.HHZ. 2023-11-24T06:45:02.66 0.3 undecidable manual S 315 19.6692 114 -0.03 78
IV.RM33.EHZ. 2023-11-24T06:45:00.05 0.6 undecidable manual P 194 22.8549 111 -0.09 51
IV.TERO.HHZ. 2023-11-24T06:45:00.66 3.0 undecidable manual P -1.41 0
IV.LNSS.HHZ. 2023-11-24T06:45:00.04 0.6 undecidable manual P 240 23.0547 111 -0.15 50
IV.NRCA.HHZ. 2023-11-24T06:44:59.57 0.6 negative manual P 315 19.6692 114 0.02 52
IV.SMA1.EHZ. 2023-11-24T06:44:59.51 0.6 undecidable manual S 154 9.5793 132 -0.22 51
IV.MMO1.EHZ. 2023-11-24T06:44:59.80 0.3 undecidable manual P 9 21.4674 112 -0.09 77
IV.SMA1.EHZ. 2023-11-24T06:44:58.14 0.1 positive manual P 154 9.5793 132 0.31 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.6 0.000035934975 0.16 AML other m 2023-11-24T06:45:03.07
IV.NRCA.HHE. ML:0.6 0.000033641756500000005 0.0608 AML other m 2023-11-24T06:45:02.91
IV.SMA1.EHE. ML:0.6 0.00005614901 0.1792 AML other m 2023-11-24T06:45:00.33
IV.SMA1.EHN. ML:0.3 0.000029768170000000002 0.08 AML other m 2023-11-24T06:44:59.96
IV.LNSS.HHE. ML:0.5 0.000018679165 0.1216 AML other m 2023-11-24T06:45:04.84
IV.LNSS.HHN. ML:0.4 0.0000129128575 0.16 AML other m 2023-11-24T06:45:05.83
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