Earthquake with magnitude of ML 1.0 on date 16-01-2024 and time 04:55:36 (Italy) in region 4 km NW Accumoli (RI)

A magnitude ML 1.0 earthquake occured in region: 4 km NW Accumoli (RI), on

  • 16-01-2024 03:55:36 (UTC)
  • 16-01-2024 04:55:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7230, 13.2180 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 4 667 667
Arquata del Tronto AP 9 1178 1845
Amatrice RI 12 2657 4502
Cittareale RI 13 482 4984
Norcia PG 13 4957 9941
Montegallo AP 16 523 10464
Acquasanta Terme AP 17 2916 13380
Cascia PG 17 3217 16597
Castelsantangelo sul Nera MC 20 281 16878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km W of Teramo (54892 inhabitants)
44 Km NW of L'Aquila (69753 inhabitants)
49 Km SE of Foligno (57155 inhabitants)
50 Km E of Terni (111501 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
80 Km SE of Perugia (166134 inhabitants)
86 Km W of Pescara (121014 inhabitants)
88 Km W of Chieti (51815 inhabitants)
90 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km NE of Tivoli (56533 inhabitants)
97 Km E of Viterbo (67173 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 2024-01-16
03:55:36
42.7227 13.218 9 2024-01-16
05:23:22
Sala Sismica INGV-Roma 124671611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-16 03:55:36 ± 0.12
Latitude 42.7227 ± 0.0045
Longitude 13.2180 ± 0.0110
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 124671611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 844
Semi-minor axis of confidence ellipse (meter) 491
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 272
Circular confidence region, given by single value of horizontal uncertainty (meter) 840.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.12591
Epicentral distance of station farthest from the epicenter (degree) 0.46045
Number of stations at which the event was observed 8
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 6
Type of magnitude ML
Reference to an origin 124671611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-16 05:23:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2024-01-16T03:55:49.14 0.1 undecidable manual S 34 35.3424 50 0.36 91
IV.RM33.EHZ. 2024-01-16T03:55:45.37 0.1 undecidable manual S 181 23.6541 111 0.12 98
IV.LNSS.HHZ. 2024-01-16T03:55:44.17 0.6 undecidable manual S 228 19.6692 115 0.22 48
IV.FIAM.HHZ. 2024-01-16T03:55:44.63 0.6 negative manual P 189 51.1155 50 -1.36 29
IV.MMO1.EHZ. 2024-01-16T03:55:44.40 0.1 undecidable manual S 24 21.4674 113 -0.14 98
IV.MF5.EHZ. 2024-01-16T03:55:43.66 0.6 positive manual P 34 35.3424 50 0.1 48
IV.NRCA.HHZ. 2024-01-16T03:55:42.45 0.6 undecidable manual S 326 14.874 121 -0.05 50
IV.SMA1.EHZ. 2024-01-16T03:55:42.20 0.6 undecidable manual S 137 13.9749 123 -0.03 51
IV.TERO.HHZ. 2024-01-16T03:55:42.78 1.0 undecidable manual P 109 33.3444 50 -0.47 22
IV.RM33.EHZ. 2024-01-16T03:55:41.51 0.1 undecidable manual P 181 23.6541 111 -0.01 100
IV.LNSS.HHZ. 2024-01-16T03:55:41.07 1.0 negative manual P 228 19.6692 115 0.29 24
IV.MMO1.EHZ. 2024-01-16T03:55:40.94 0.3 positive manual P 24 21.4674 113 -0.17 73
IV.SMA1.EHZ. 2024-01-16T03:55:40.03 0.6 undecidable manual P 137 13.9749 123 0.25 48
IV.NRCA.HHZ. 2024-01-16T03:55:39.98 1.0 negative manual P 326 14.874 121 0.05 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:0.7 0.00005125 0.26 AML other m 2024-01-16T03:55:42.65
IV.NRCA.HHN. ML:1.3 0.00020150000000000002 0.16 AML other m 2024-01-16T03:55:42.55
IV.NRCA.HHE. ML:1.7 0.000449 0.1 AML other m 2024-01-16T03:55:42.59
IV.SMA1.EHN. ML:0.7 0.00005705 0.42 AML other m 2024-01-16T03:55:42.70
IV.LNSS.HHN. ML:1.0 0.0000762 0.26 AML other m 2024-01-16T03:55:44.24
IV.LNSS.HHE. ML:0.9 0.0000557 1.58 AML other m 2024-01-16T03:55:45.12
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