Earthquake with magnitude of ML 0.7 on date 09-05-2023 and time 03:57:45 (Italy) in region 2 km NE Amatrice (RI)

A magnitude ML 0.7 earthquake occured in region: 2 km NE Amatrice (RI), on

  • 09-05-2023 01:57:45 (UTC)
  • 09-05-2023 03:57:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6450, 13.3120 at 8 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
Accumoli RI 8 667 3324
Campotosto AQ 11 542 3866
Cittareale RI 13 482 4348
Capitignano AQ 14 665 5013
Arquata del Tronto AP 14 1178 6191
Montereale AQ 14 2581 8772
Acquasanta Terme AP 16 2916 11688
Cortino TE 16 656 12344
Crognaleto TE 18 1297 13641
Valle Castellana TE 18 977 14618
Rocca Santa Maria TE 18 537 15155

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km W of Teramo (54892 inhabitants)
33 Km N of L'Aquila (69753 inhabitants)
55 Km E of Terni (111501 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
70 Km W of Montesilvano (53738 inhabitants)
77 Km W of Pescara (121014 inhabitants)
77 Km W of Chieti (51815 inhabitants)
86 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km NE of Tivoli (56533 inhabitants)
91 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 0.7 2023-05-09
01:57:45
42.6453 13.3118 8 2023-05-09
02:03:17
Sala Sismica INGV-Roma 117165131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-09 01:57:45 ± 0.07
Latitude 42.6453 ± 0.0018
Longitude 13.3118 ± 0.0024
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117165131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 206
Semi-minor axis of confidence ellipse (meter) 99
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 316
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25361
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 117165131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-09 02:03:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHZ. 2023-05-09T01:57:58.31 3.0 undecidable manual Pg 0.7 0
IV.ATFO.HHZ. 2023-05-09T01:57:57.77 3.0 undecidable manual P -0.71 0
IV.MMO1.EHZ. 2023-05-09T01:57:55.24 0.3 undecidable manual S 2 28.1496 105 -0.11 72
IV.NRCA.HHZ. 2023-05-09T01:57:54.68 0.3 undecidable manual S 322 26.3514 106 -0.05 73
IV.LNSS.HHZ. 2023-05-09T01:57:53.42 0.3 undecidable manual S 258 22.6551 108 -0.08 73
IV.TERO.HHZ. 2023-05-09T01:57:53.79 0.3 undecidable manual S 96 23.9538 107 -0.15 72
IV.RM33.EHZ. 2023-05-09T01:57:51.72 0.3 undecidable manual S 208 17.0718 114 0.02 75
IV.MMO1.EHZ. 2023-05-09T01:57:51.02 1.0 positive manual P 2 28.1496 105 -0.05 24
IV.NRCA.HHZ. 2023-05-09T01:57:50.59 0.3 positive manual P 322 26.3514 106 -0.12 72
IV.LNSS.HHZ. 2023-05-09T01:57:50.11 0.1 undecidable manual P 258 22.6551 108 0.1 97
IV.MTRA.EHN. 2023-05-09T01:57:50.94 0.3 undecidable manual S 29 14.1747 118 0.17 73
IV.TERO.HHZ. 2023-05-09T01:57:50.20 0.3 undecidable manual P 96 23.9538 107 -0.05 73
IV.RM33.EHZ. 2023-05-09T01:57:49.00 0.6 positive manual P 208 17.0718 114 0.04 50
IV.MTRA.EHN. 2023-05-09T01:57:48.57 0.1 undecidable manual P 29 14.1747 118 0.14 98
IV.SMA1.EHE. 2023-05-09T01:57:47.84 0.3 undecidable manual S 131 2.4975 161 -0.12 75
IV.SMA1.EHE. 2023-05-09T01:57:46.92 0.1 undecidable manual P 131 2.4975 161 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:0.6 0.00003285 0.56 AML other m 2023-05-09T01:57:50.05
IV.RM33.EHN. ML:0.6 0.00003485000000000001 1.24 AML other m 2023-05-09T01:57:52.10
IV.TERO.HHN. ML:0.7 0.00003565 0.24 AML other m 2023-05-09T01:57:53.99
IV.TERO.HHE. ML:0.6 0.000025750000000000002 0.64 AML other m 2023-05-09T01:57:54.13
IV.NRCA.HHE. ML:0.9 0.000047 0.14 AML other m 2023-05-09T01:57:55.00
IV.NRCA.HHN. ML:0.6 0.000025349999999999996 0.96 AML other m 2023-05-09T01:57:55.24
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