A magnitude ML 0.5 earthquake occured in region: 3 km SE Amatrice (RI), on
and geographic coordinates (lat, lon) 42.6090, 13.3110 at 14 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 | 3 | 2657 | 2657 |
Campotosto | AQ | 8 | 542 | 3199 |
Capitignano | AQ | 10 | 665 | 3864 |
Montereale | AQ | 11 | 2581 | 6445 |
Accumoli | RI | 11 | 667 | 7112 |
Cittareale | RI | 12 | 482 | 7594 |
Crognaleto | TE | 15 | 1297 | 8891 |
Cortino | TE | 16 | 656 | 9547 |
Barete | AQ | 18 | 737 | 10284 |
Cagnano Amiterno | AQ | 18 | 1369 | 11653 |
Borbona | RI | 18 | 617 | 12270 |
Arquata del Tronto | AP | 18 | 1178 | 13448 |
Pizzoli | AQ | 19 | 4326 | 17774 |
Fano Adriano | TE | 20 | 296 | 18070 |
Acquasanta Terme | AP | 20 | 2916 | 20986 |
Rocca Santa Maria | TE | 20 | 537 | 21523 |
Posta | RI | 20 | 694 | 22217 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.5 | 2021-10-20 21:12:08 |
42.6088 | 13.3107 | 14 | 2021-10-20 21:18:47 |
Sala Sismica INGV-Roma | 96811781 |
Field | Value |
---|---|
Time (UTC) | 2021-10-20 21:12:08 ± 0.09 |
Latitude | 42.6088 ± 0.0054 |
Longitude | 13.3107 ± 0.0037 |
Depth (km) | 14 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 96811781 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 646 |
Semi-minor axis of confidence ellipse (meter) | 60 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 351 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 650.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 129 |
Number of associated phases, regardless of their use for origin computation | 9 |
Number of defining phases | 9 |
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) | 0.02788 |
Epicentral distance of station farthest from the epicenter (degree) | 0.21584 |
Number of stations at which the event was observed | 5 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 0.5 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 96811781 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-20 21:18:47 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.TERO.HHZ. | 2021-10-20T21:12:17.11 | 0.3 | undecidable | manual | S | 86 | 23.9538 | 103 | -0.16 | 71 |
IV.LNSS.HHZ. | 2021-10-20T21:12:16.64 | 0.3 | undecidable | manual | S | 268 | 22.0668 | 105 | -0.14 | 72 |
IV.RM33.EHZ. | 2021-10-20T21:12:14.64 | 0.3 | undecidable | manual | S | 215 | 13.5753 | 122 | -0.04 | 75 |
IV.LNSS.HHZ. | 2021-10-20T21:12:13.22 | 0.6 | negative | manual | P | 268 | 22.0668 | 105 | 0.01 | 49 |
IV.TERO.HHZ. | 2021-10-20T21:12:13.58 | 0.3 | undecidable | manual | P | 86 | 23.9538 | 103 | 0.08 | 73 |
IV.RM33.EHZ. | 2021-10-20T21:12:12.13 | 0.6 | positive | manual | P | 215 | 13.5753 | 122 | 0.13 | 49 |
IV.SMA1.EHZ. | 2021-10-20T21:12:12.85 | 0.1 | undecidable | manual | S | 40 | 3.0969 | 164 | -0.12 | 100 |
IV.SMA1.EHZ. | 2021-10-20T21:12:11.15 | 0.1 | negative | manual | P | 40 | 3.0969 | 164 | 0.14 | 99 |
IV.T1299.HNN. | 2021-10-20T21:12:11.14 | 0.1 | undecidable | manual | P | 320 | 3.5964 | 161 | 0.1 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SMA1.EHN. | ML:0.4 | 0.0000314 | 1.42 | AML | other | m | 2021-10-20T21:12:13.25 |
IV.SMA1.EHE. | ML:0.5 | 0.00004255 | 1.4 | AML | other | m | 2021-10-20T21:12:13.01 |
IV.RM33.EHE. | ML:0.6 | 0.00003555 | 0.32 | AML | other | m | 2021-10-20T21:12:14.72 |
IV.RM33.EHN. | ML:0.4 | 0.00002205 | 0.52 | AML | other | m | 2021-10-20T21:12:15.59 |