A magnitude ML 0.9 earthquake occured in region: 4 km NE Amatrice (RI), on
and geographic coordinates (lat, lon) 42.6640, 13.3090 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.
Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
---|---|---|---|---|
Amatrice | RI | 4 | 2657 | 2657 |
Accumoli | RI | 6 | 667 | 3324 |
Arquata del Tronto | AP | 12 | 1178 | 4502 |
Campotosto | AQ | 13 | 542 | 5044 |
Cittareale | RI | 13 | 482 | 5526 |
Acquasanta Terme | AP | 14 | 2916 | 8442 |
Capitignano | AQ | 16 | 665 | 9107 |
Montereale | AQ | 16 | 2581 | 11688 |
Cortino | TE | 17 | 656 | 12344 |
Valle Castellana | TE | 18 | 977 | 13321 |
Rocca Santa Maria | TE | 18 | 537 | 13858 |
Crognaleto | TE | 19 | 1297 | 15155 |
Montegallo | AP | 20 | 523 | 15678 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2023-05-21 21:54:18 |
42.6637 | 13.3092 | 9 | 2023-05-21 21:59:28 |
Sala Sismica INGV-Roma | 117569371 |
Field | Value |
---|---|
Time (UTC) | 2023-05-21 21:54:18 ± 0.07 |
Latitude | 42.6637 ± 0.0036 |
Longitude | 13.3092 ± 0.0049 |
Depth (km) | 9 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 117569371 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 392 |
Semi-minor axis of confidence ellipse (meter) | 377 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 211 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 390.0 |
Confidence level of the uncertainty (%) | 68 |
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 | 20 |
Number of defining phases | 20 |
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) | 0.03867 |
Epicentral distance of station farthest from the epicenter (degree) | 0.45236 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 117569371 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-05-21 21:59:28 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CSP1.EHZ. | 2023-05-21T21:54:34.41 | 0.6 | undecidable | manual | S | 350 | 48.2184 | 50 | 0.25 | 48 |
IV.CESI.HHZ. | 2023-05-21T21:54:34.78 | 0.6 | undecidable | manual | S | 319 | 50.2164 | 50 | 0.12 | 49 |
IV.FDMO.HHZ. | 2023-05-21T21:54:33.49 | 0.6 | undecidable | manual | S | 337 | 45.1215 | 50 | 0.17 | 49 |
IV.GIGS.HHZ. | 2023-05-21T21:54:29.21 | 0.6 | undecidable | manual | S | 137 | 31.746 | 50 | -0.54 | 46 |
IV.CESI.HHZ. | 2023-05-21T21:54:28.16 | 1.0 | positive | manual | P | 319 | 50.2164 | 50 | 0.38 | 23 |
IV.TERO.HHZ. | 2023-05-21T21:54:27.23 | 0.6 | undecidable | manual | S | 101 | 24.4533 | 110 | -0.2 | 51 |
IV.MMO1.EHZ. | 2023-05-21T21:54:27.75 | 0.6 | undecidable | manual | S | 3 | 26.1516 | 109 | -0.23 | 50 |
IV.CSP1.EHZ. | 2023-05-21T21:54:27.50 | 1.0 | negative | manual | P | 350 | 48.2184 | 50 | 0.02 | 25 |
IV.NRCA.HHZ. | 2023-05-21T21:54:27.02 | 0.6 | undecidable | manual | S | 320 | 24.6531 | 110 | -0.46 | 48 |
IV.FDMO.HHZ. | 2023-05-21T21:54:26.85 | 1.0 | undecidable | manual | P | 337 | 45.1215 | 50 | -0.15 | 25 |
IV.LNSS.HHZ. | 2023-05-21T21:54:26.54 | 0.6 | undecidable | manual | S | 253 | 22.9548 | 112 | -0.39 | 49 |
IV.RM33.EHZ. | 2023-05-21T21:54:25.72 | 0.6 | undecidable | manual | S | 204 | 18.7701 | 116 | 0.1 | 52 |
IV.GIGS.HHZ. | 2023-05-21T21:54:24.82 | 1.0 | undecidable | manual | P | 137 | 31.746 | 50 | -0.12 | 25 |
IV.NRCA.HHZ. | 2023-05-21T21:54:23.57 | 0.3 | positive | manual | P | 320 | 24.6531 | 110 | -0.06 | 78 |
IV.TERO.HHZ. | 2023-05-21T21:54:23.67 | 0.6 | undecidable | manual | P | 101 | 24.4533 | 110 | 0.08 | 52 |
IV.MMO1.EHZ. | 2023-05-21T21:54:23.98 | 0.6 | positive | manual | P | 3 | 26.1516 | 109 | 0.06 | 52 |
IV.LNSS.HHZ. | 2023-05-21T21:54:23.37 | 0.3 | positive | manual | P | 253 | 22.9548 | 112 | 0.05 | 78 |
IV.RM33.EHZ. | 2023-05-21T21:54:22.75 | 1.0 | positive | manual | P | 204 | 18.7701 | 116 | 0.2 | 26 |
IV.SMA1.EHZ. | 2023-05-21T21:54:21.78 | 0.6 | undecidable | manual | S | 150 | 4.2957 | 155 | -0.06 | 54 |
IV.SMA1.EHZ. | 2023-05-21T21:54:20.78 | 0.1 | undecidable | manual | P | 150 | 4.2957 | 155 | 0.41 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SMA1.EHN. | ML:1.4 | 0.0004485 | 0.16 | AML | other | m | 2023-05-21T21:54:22.09 |
IV.SMA1.EHE. | ML:1.3 | 0.00039749999999999996 | 0.34 | AML | other | m | 2023-05-21T21:54:22.38 |
IV.RM33.EHN. | ML:0.7 | 0.00003825 | 0.36 | AML | other | m | 2023-05-21T21:54:26.00 |
IV.RM33.EHE. | ML:0.6 | 0.0000361 | 0.68 | AML | other | m | 2023-05-21T21:54:26.11 |
IV.LNSS.HHE. | ML:0.9 | 0.0000482 | 0.88 | AML | other | m | 2023-05-21T21:54:27.51 |
IV.LNSS.HHN. | ML:0.8 | 0.000038150000000000006 | 1.22 | AML | other | m | 2023-05-21T21:54:27.95 |
IV.NRCA.HHN. | ML:1.0 | 0.0000579 | 0.18 | AML | other | m | 2023-05-21T21:54:27.45 |
IV.NRCA.HHE. | ML:1.1 | 0.0000687 | 1.02 | AML | other | m | 2023-05-21T21:54:27.95 |
IV.TERO.HHN. | ML:1.1 | 0.00006884999999999999 | 0.08 | AML | other | m | 2023-05-21T21:54:27.61 |
IV.TERO.HHE. | ML:0.9 | 0.000048549999999999994 | 0.14 | AML | other | m | 2023-05-21T21:54:27.67 |
IV.MMO1.EHE. | ML:0.7 | 0.0000307 | 0.3 | AML | other | m | 2023-05-21T21:54:28.00 |
IV.MMO1.EHN. | ML:0.6 | 0.000023449999999999997 | 0.18 | AML | other | m | 2023-05-21T21:54:28.17 |