Earthquake with magnitude of ML 0.5 on date 02-10-2023 and time 12:21:23 (Italy) in region 3 km SE Amatrice (RI)

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

  • 02-10-2023 10:21:23 (UTC)
  • 02-10-2023 12:21:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6100, 13.3170 at 15 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
Amatrice RI 3 2657 2657
Campotosto AQ 7 542 3199
Capitignano AQ 10 665 3864
Accumoli RI 11 667 4531
Montereale AQ 11 2581 7112
Cittareale RI 13 482 7594
Crognaleto TE 15 1297 8891
Cortino TE 16 656 9547
Barete AQ 18 737 10284
Arquata del Tronto AP 18 1178 11462
Cagnano Amiterno AQ 18 1369 12831
Borbona RI 19 617 13448
Fano Adriano TE 19 296 13744
Rocca Santa Maria TE 19 537 14281
Acquasanta Terme AP 19 2916 17197
Pizzoli AQ 19 4326 21523

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km N of L'Aquila (69753 inhabitants)
32 Km W of Teramo (54892 inhabitants)
55 Km E of Terni (111501 inhabitants)
63 Km SE of Foligno (57155 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
75 Km W of Pescara (121014 inhabitants)
76 Km W of Chieti (51815 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
94 Km SE of Perugia (166134 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 2023-10-02
10:21:23
42.6103 13.3167 15 2023-10-02
10:34:30
Sala Sismica INGV-Roma 121672651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-02 10:21:23 ± 0.1
Latitude 42.6103 ± 0.0036
Longitude 13.3167 ± 0.0073
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121672651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 558
Semi-minor axis of confidence ellipse (meter) 422
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 85
Circular confidence region, given by single value of horizontal uncertainty (meter) 560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.39120
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 121672651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-02 10:34:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RNCA.HHZ. 2023-10-02T10:23:12.54 3.0 undecidable manual Sg 13.19 0
NI.VINO.HHZ. 2023-10-02T10:23:08.64 3.0 undecidable manual Sn 1.19 0
GU.GSCL.HHZ. 2023-10-02T10:22:39.74 3.0 undecidable manual Sg 3.21 0
IV.LADO.EHZ. 2023-10-02T10:22:32.88 3.0 undecidable manual Pg 17.469999 0
OE.WTTA.HHZ. 2023-10-02T10:22:32.38 3.0 negative manual Pn -0.59 0
IV.SFI.EHZ. 2023-10-02T10:22:13.97 3.0 undecidable manual Sn -1.25 0
IV.ACER.HHZ. 2023-10-02T10:22:01.53 3.0 negative manual Pg 7.51 0
IV.ARVD.HHZ. 2023-10-02T10:21:58.04 3.0 undecidable manual S -2.16 0
IV.CSNT.HHZ. 2023-10-02T10:21:49.71 3.0 negative manual Pg 3 0
IV.SACS.HHZ. 2023-10-02T10:21:47.74 3.0 undecidable manual S -5.91 0
IV.TRIV.HHZ. 2023-10-02T10:21:37.63 3.0 positive manual P 2.3 0
IV.MCIV.CHZ. 2023-10-02T10:21:35.95 3.0 negative manual P -1.57 0
7F.SIB2.EHZ. 2023-10-02T10:21:34.36 0.3 undecidable manual S 358 31.1466 102 -0.06 73
7F.SIB3.EHZ. 2023-10-02T10:21:33.90 0.6 undecidable manual S 353 29.6481 103 -0.12 49
IV.NRCA.HHZ. 2023-10-02T10:21:33.89 0.6 undecidable manual S 326 29.748 102 -0.16 48
IV.GIGS.HHE. 2023-10-02T10:21:33.32 0.6 undecidable manual S 130 27.2505 104 -0.09 49
IV.MF5.EHZ. 2023-10-02T10:21:32.10 1.0 positive manual P 15 43.4232 97 0.4 22
IV.TERO.HHZ. 2023-10-02T10:21:32.29 0.6 undecidable manual S 87 23.4543 108 -0.16 49
IV.RM33.HNE. 2023-10-02T10:21:30.24 0.6 undecidable manual S 217 13.9749 126 0.06 50
IV.MC2.EHZ. 2023-10-02T10:21:30.23 1.0 undecidable manual P 343 34.9428 100 -0.17 24
IV.GIGS.HHE. 2023-10-02T10:21:29.38 0.6 undecidable manual P 130 27.2505 104 0.14 49
7F.SIB3.EHZ. 2023-10-02T10:21:29.72 0.6 undecidable manual P 353 29.6481 103 0.13 49
IV.NRCA.HHZ. 2023-10-02T10:21:29.66 0.1 undecidable manual P 326 29.748 102 0.05 99
7F.SIB2.EHZ. 2023-10-02T10:21:29.89 0.6 undecidable manual P 358 31.1466 102 0.06 49
IV.TERO.HHZ. 2023-10-02T10:21:28.77 1.0 negative manual P 87 23.4543 108 0.09 25
IV.SMA1.EHZ. 2023-10-02T10:21:28.32 1.0 undecidable manual S 34 2.6973 168 -0.16 25
IV.RM33.HNE. 2023-10-02T10:21:27.01 0.6 undecidable manual P 217 13.9749 126 -0.36 48
IV.SMA1.EHZ. 2023-10-02T10:21:26.58 0.1 undecidable manual P 34 2.6973 168 0.18 100
IV.LAV9.HNZ. 2023-10-02T10:21:23.19 3.0 undecidable manual P -0.59 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0.9 0.0000362 0.16 AML other m 2023-10-02T10:21:34.08
IV.NRCA.HHN. ML:0.8 0.0000293 0.08 AML other m 2023-10-02T10:21:34.43
IV.SMA1.EHE. ML:0.3 0.0000256766 0.2176 AML other m 2023-10-02T10:21:29.11
IV.SMA1.EHN. ML:0.3 0.000024362905 2.0224 AML other m 2023-10-02T10:21:29.39
IV.TERO.HHE. ML:0.4 0.000015163605 0.0832 AML other m 2023-10-02T10:21:32.47
IV.TERO.HHN. ML:0.4 0.000014900025000000001 0.0768 AML other m 2023-10-02T10:21:33.42
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download