Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 08-01-2023 and time 03:01:47 (UTC) in region 5 km SW Amatrice (RI)

A magnitude ML 0.9 earthquake occured in region: 5 km SW Amatrice (RI), on

  • 08-01-2023 03:01:47 (UTC)
  • 08-01-2023 04:01:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6040, 13.2470 at 13 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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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 5 2657 2657
Cittareale RI 7 482 3139
Montereale AQ 9 2581 5720
Accumoli RI 10 667 6387
Capitignano AQ 10 665 7052
Campotosto AQ 11 542 7594
Borbona RI 14 617 8211
Posta RI 15 694 8905
Cagnano Amiterno AQ 16 1369 10274
Barete AQ 17 737 11011
Pizzoli AQ 19 4326 15337
Arquata del Tronto AP 19 1178 16515

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of L'Aquila (69753 inhabitants)
38 Km W of Teramo (54892 inhabitants)
49 Km E of Terni (111501 inhabitants)
59 Km SE of Foligno (57155 inhabitants)
75 Km W of Montesilvano (53738 inhabitants)
80 Km NE of Guidonia Montecelio (88673 inhabitants)
80 Km NE of Tivoli (56533 inhabitants)
81 Km W of Chieti (51815 inhabitants)
81 Km W of Pescara (121014 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
96 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
Bulletin
Rev1000 		ML 0.9 2023-01-08
03:01:47		 42.6043 13.2467 13 2024-03-01
17:17:54		 Bollettino Sismico Italiano INGV 114220351
Reviewed
Rev100 		ML 0.9 2023-01-08
03:01:47		 42.603 13.2422 13 2023-01-08
03:08:38		 Sala Sismica INGV-Roma 113387241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-08 03:01:47 ± 0.07
Latitude 42.6043 ± 0.0027
Longitude 13.2467 ± 0.0037
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 114220351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 320
Semi-minor axis of confidence ellipse (meter) 46
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 139
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.07015
Epicentral distance of station farthest from the epicenter (degree) 0.53510
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 114220351
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-02-07 11:46:46

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 113387241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-08 03:08:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESX.HHE. 2023-01-08T03:02:04.56 0.3 undecidable manual S 271 53.9016 93 0.35 67
IV.MF5.EHN. 2023-01-08T03:02:02.34 0.3 undecidable manual S 22 45.9207 93 0.25 69
IV.ARRO.EHZ. 2023-01-08T03:02:00.24 0.6 undecidable manual S 266 39.3273 94 -0.11 49
IV.FIAM.HHZ. 2023-01-08T03:02:00.14 0.6 undecidable manual S 196 38.8278 94 -0.05 49
IV.MC2.EHZ. 2023-01-08T03:01:58.99 1.0 undecidable manual S 352 34.3434 95 -0.03 25
IV.GIGS.HHN. 2023-01-08T03:01:58.15 0.6 undecidable manual S 122 31.5462 96 -0.1 49
IV.MMO1.EHZ. 2023-01-08T03:01:58.74 0.3 undecidable manual S 11 33.3444 95 -0.01 75
IV.MOMA.HNZ. 2023-01-08T03:01:58.38 0.3 undecidable manual P 292 59.3961 92 0.44 65
7F.SIB3.EHN. 2023-01-08T03:01:57.59 0.6 undecidable manual S 4 30.0477 96 -0.29 47
IV.TERO.HHZ. 2023-01-08T03:01:57.45 0.3 undecidable manual S 86 29.2485 97 -0.2 73
IV.GAVE.EHN. 2023-01-08T03:01:57.69 0.6 undecidable manual S 289 30.3474 96 -0.26 48
IV.CESX.HHE. 2023-01-08T03:01:57.38 0.1 undecidable manual P 271 53.9016 93 0.29 90
IV.MF5.EHN. 2023-01-08T03:01:56.25 0.1 undecidable manual P 22 45.9207 93 0.38 90
IV.NRCA.HHZ. 2023-01-08T03:01:56.78 0.3 undecidable manual S 337 27.6501 97 -0.44 69
IV.MTRA.EHE. 2023-01-08T03:01:55.18 0.6 undecidable manual S 36 20.868 103 -0.26 48
IV.FIAM.HHZ. 2023-01-08T03:01:54.51 0.3 undecidable manual P 196 38.8278 94 -0.26 71
IV.MC2.EHZ. 2023-01-08T03:01:54.23 0.6 undecidable manual P 352 34.3434 95 0.14 48
IV.LNSS.HHZ. 2023-01-08T03:01:54.15 0.3 undecidable manual S 269 16.872 110 -0.26 73
IV.ARRO.EHZ. 2023-01-08T03:01:54.72 0.1 undecidable manual P 266 39.3273 94 -0.14 96
7F.SIB3.EHN. 2023-01-08T03:01:53.27 0.1 undecidable manual P 4 30.0477 96 -0.16 98
IV.TERO.HHZ. 2023-01-08T03:01:53.48 0.3 undecidable manual P 86 29.2485 97 0.18 73
IV.GIGS.HHN. 2023-01-08T03:01:53.52 0.1 undecidable manual P 122 31.5462 96 -0.13 98
IV.MMO1.EHZ. 2023-01-08T03:01:53.99 0.3 undecidable manual P 11 33.3444 95 0.05 74
IV.GAVE.EHN. 2023-01-08T03:01:53.58 0.1 undecidable manual P 289 30.3474 96 0.1 98
IV.SMA1.EHZ. 2023-01-08T03:01:52.37 0.6 undecidable manual S 68 7.7811 140 -0.05 51
IV.NRCA.HHZ. 2023-01-08T03:01:52.94 0.1 negative manual P 337 27.6501 97 -0.11 99
IV.RM33.EHZ. 2023-01-08T03:01:52.91 0.3 undecidable manual S 194 10.878 128 -0.11 76
IV.MTRA.EHE. 2023-01-08T03:01:51.91 0.1 undecidable manual P 36 20.868 103 -0.12 100
IV.LNSS.HHZ. 2023-01-08T03:01:51.46 0.3 undecidable manual P 269 16.872 110 0.03 77
IV.SMA1.EHZ. 2023-01-08T03:01:50.60 0.3 undecidable manual P 68 7.7811 140 0.32 74
IV.RM33.EHZ. 2023-01-08T03:01:50.82 0.3 undecidable manual P 194 10.878 128 0.19 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.1 0.000157 0.38 AML other m 2023-01-08T03:01:52.56
IV.SMA1.EHE. ML:1.2 0.000191 1.66 AML other m 2023-01-08T03:01:52.87
IV.RM33.EHE. ML:1.0 0.00009429999999999999 0.3 AML other m 2023-01-08T03:01:53.27
IV.RM33.EHN. ML:0.9 0.00008054999999999999 0.12 AML other m 2023-01-08T03:01:53.25
IV.LNSS.HHE. ML:0.8 0.000044999999999999996 0.46 AML other m 2023-01-08T03:01:54.56
IV.LNSS.HHN. ML:0.6 0.0000344 0.3 AML other m 2023-01-08T03:01:55.08
IV.NRCA.HHE. ML:1.0 0.0000556 0.12 AML other m 2023-01-08T03:01:57.13
IV.NRCA.HHN. ML:0.9 0.00003985 0.44 AML other m 2023-01-08T03:01:57.88
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