Earthquake with magnitude of ML 0.8 on date 17-05-2023 and time 18:45:51 (UTC) in region 2 km SW Amatrice (RI)

A magnitude ML 0.8 earthquake occured in region: 2 km SW Amatrice (RI), on

  • 17-05-2023 18:45:51 (UTC)
  • 17-05-2023 20:45:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6140, 13.2730 at 13 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 2 2657 2657
Cittareale RI 9 482 3139
Accumoli RI 9 667 3806
Campotosto AQ 10 542 4348
Montereale AQ 10 2581 6929
Capitignano AQ 11 665 7594
Borbona RI 16 617 8211
Posta RI 18 694 8905
Cagnano Amiterno AQ 18 1369 10274
Arquata del Tronto AP 18 1178 11452
Barete AQ 18 737 12189
Crognaleto TE 19 1297 13486
Cortino TE 19 656 14142
Pizzoli AQ 20 4326 18468

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of L'Aquila (69753 inhabitants)
36 Km W of Teramo (54892 inhabitants)
52 Km E of Terni (111501 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
79 Km W of Pescara (121014 inhabitants)
79 Km W of Chieti (51815 inhabitants)
82 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km NE of Tivoli (56533 inhabitants)
91 Km SE of Perugia (166134 inhabitants)
98 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 0.8 2023-05-17
18:45:51
42.614 13.2728 13 2023-05-17
18:53:05
Sala Sismica INGV-Roma 117431381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-17 18:45:51 ± 0.04
Latitude 42.6140 ± 0.0027
Longitude 13.2728 ± 0.0024
Depth (km) 13 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117431381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 233
Semi-minor axis of confidence ellipse (meter) 225
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 184
Circular confidence region, given by single value of horizontal uncertainty (meter) 230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.08
Epicentral distance of station closest to the epicenter (degree) 0.04856
Epicentral distance of station farthest from the epicenter (degree) 0.28868
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 117431381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-17 18:53:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHE. 2023-05-17T18:46:02.92 0.6 undecidable manual S 286 32.0457 97 0.1 48
IV.TERO.HHZ. 2023-05-17T18:46:01.40 0.6 undecidable manual S 88 27.0507 99 -0.09 48
IV.NRCA.HHZ. 2023-05-17T18:46:01.48 0.6 undecidable manual S 332 27.5502 98 -0.15 48
IV.LNSS.HHZ. 2023-05-17T18:45:59.38 0.6 undecidable manual S 266 19.0698 107 -0.01 50
IV.GAVE.EHE. 2023-05-17T18:45:58.13 0.1 undecidable manual P 286 32.0457 97 -0.02 97
IV.TERO.HHZ. 2023-05-17T18:45:57.42 0.3 undecidable manual P 88 27.0507 99 0.05 73
IV.RM33.EHZ. 2023-05-17T18:45:57.67 0.6 undecidable manual S 202 12.5763 123 -0.16 49
IV.NRCA.HHZ. 2023-05-17T18:45:57.47 0.6 positive manual P 332 27.5502 98 0.01 49
IV.LNSS.HHZ. 2023-05-17T18:45:56.14 1.0 undecidable manual P 266 19.0698 107 -0.03 25
IV.SMA1.EHZ. 2023-05-17T18:45:56.48 0.3 undecidable manual S 70 5.3946 152 -0.06 76
IV.RM33.EHZ. 2023-05-17T18:45:55.39 0.6 positive manual P 202 12.5763 123 0.12 49
IV.SMA1.EHZ. 2023-05-17T18:45:54.61 0.1 undecidable manual P 70 5.3946 152 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.5 0.000428 0.26 AML other m 2023-05-17T18:45:56.45
IV.SMA1.EHN. ML:1.3 0.0002255 0.12 AML other m 2023-05-17T18:45:56.77
IV.RM33.EHE. ML:1.0 0.00008475 0.64 AML other m 2023-05-17T18:45:58.89
IV.RM33.EHN. ML:0.9 0.00008135000000000001 0.56 AML other m 2023-05-17T18:45:58.91
IV.LNSS.HHE. ML:0.8 0.000039872024999999995 0.1536 AML other m 2023-05-17T18:45:59.46
IV.LNSS.HHN. ML:0.8 0.000040380545 0.32 AML other m 2023-05-17T18:45:59.41
IV.TERO.HHE. ML:0.5 0.000016644920000000002 0.1408 AML other m 2023-05-17T18:46:01.77
IV.TERO.HHN. ML:0.7 0.00002404885 0.192 AML other m 2023-05-17T18:46:01.85
IV.NRCA.HHE. ML:0.8 0.000030016569999999998 0.1664 AML other m 2023-05-17T18:46:01.63
IV.NRCA.HHN. ML:0.6 0.000020618585000000002 0.8064 AML other m 2023-05-17T18:46:00.67
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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