A magnitude ML 0.9 earthquake occured in region: 4 km S Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7390, 13.3020 at 12 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 |
---|---|---|---|---|
Arquata del Tronto | AP | 4 | 1178 | 1178 |
Accumoli | RI | 7 | 667 | 1845 |
Acquasanta Terme | AP | 10 | 2916 | 4761 |
Montegallo | AP | 12 | 523 | 5284 |
Amatrice | RI | 12 | 2657 | 7941 |
Valle Castellana | TE | 16 | 977 | 8918 |
Cittareale | RI | 18 | 482 | 9400 |
Montemonaco | AP | 18 | 604 | 10004 |
Norcia | PG | 18 | 4957 | 14961 |
Rocca Santa Maria | TE | 19 | 537 | 15498 |
Roccafluvione | AP | 20 | 2010 | 17508 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-10-26 04:51:10 |
42.7393 | 13.3017 | 12 | 2021-10-26 04:57:20 |
Sala Sismica INGV-Roma | 96994171 |
Field | Value |
---|---|
Time (UTC) | 2021-10-26 04:51:10 ± 0.06 |
Latitude | 42.7393 ± 0.0036 |
Longitude | 13.3017 ± 0.0049 |
Depth (km) | 12 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 96994171 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 446 |
Semi-minor axis of confidence ellipse (meter) | 172 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 235 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 450.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 93 |
Number of associated phases, regardless of their use for origin computation | 16 |
Number of defining phases | 15 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.14 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.35973 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.1 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 96994171 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-26 04:57:20 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CRTC.HHZ. | 2021-10-26T04:51:30.44 | 3.0 | undecidable | manual | P | 0.14 | 0 | |||
IV.TERO.HHZ. | 2021-10-26T04:51:20.38 | 0.3 | undecidable | manual | S | 118 | 27.8499 | 92 | -0.17 | 73 |
IV.LNSS.HHZ. | 2021-10-26T04:51:20.12 | 0.6 | undecidable | manual | S | 235 | 26.1516 | 93 | 0.01 | 51 |
IV.RM33.EHZ. | 2021-10-26T04:51:20.29 | 0.3 | undecidable | manual | S | 196 | 26.5512 | 93 | 0.08 | 76 |
IV.MC2.EHZ. | 2021-10-26T04:51:19.03 | 0.6 | undecidable | manual | S | 334 | 21.1677 | 94 | 0.25 | 49 |
IV.CSP1.EHZ. | 2021-10-26T04:51:18.15 | 0.6 | positive | manual | P | 349 | 39.9267 | 91 | -0.08 | 49 |
IV.NRCA.HHZ. | 2021-10-26T04:51:17.79 | 0.3 | undecidable | manual | S | 304 | 18.4704 | 96 | -0.28 | 74 |
IV.FDMO.HHZ. | 2021-10-26T04:51:17.68 | 1.0 | negative | manual | P | 332 | 37.2294 | 91 | -0.15 | 24 |
IV.MF5.EHZ. | 2021-10-26T04:51:17.03 | 1.0 | negative | manual | P | 25 | 30.4473 | 92 | 0.26 | 24 |
IV.RM33.EHZ. | 2021-10-26T04:51:16.25 | 0.6 | undecidable | manual | P | 196 | 26.5512 | 93 | 0.08 | 51 |
IV.TERO.HHZ. | 2021-10-26T04:51:16.37 | 0.3 | undecidable | manual | P | 118 | 27.8499 | 92 | 0 | 76 |
IV.SMA1.EHZ. | 2021-10-26T04:51:16.47 | 0.6 | undecidable | manual | S | 167 | 12.3765 | 113 | -0.01 | 52 |
IV.MC2.EHZ. | 2021-10-26T04:51:15.41 | 0.6 | positive | manual | P | 334 | 21.1677 | 94 | 0.06 | 51 |
IV.LNSS.HHZ. | 2021-10-26T04:51:15.98 | 0.1 | undecidable | manual | P | 235 | 26.1516 | 93 | -0.13 | 100 |
IV.SMA1.EHZ. | 2021-10-26T04:51:14.35 | 0.3 | negative | manual | P | 167 | 12.3765 | 113 | 0.33 | 74 |
IV.NRCA.HHZ. | 2021-10-26T04:51:14.94 | 0.6 | undecidable | manual | P | 304 | 18.4704 | 96 | 0 | 52 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SMA1.EHE. | ML:1.1 | 0.000131 | 1.9 | AML | other | m | 2021-10-26T04:51:16.97 |
IV.SMA1.EHN. | ML:1.1 | 0.000128 | 0.1 | AML | other | m | 2021-10-26T04:51:17.11 |
IV.NRCA.HHN. | ML:0.8 | 0.00004855 | 0.18 | AML | other | m | 2021-10-26T04:51:17.96 |
IV.NRCA.HHE. | ML:1.0 | 0.00007005 | 0.44 | AML | other | m | 2021-10-26T04:51:18.28 |
IV.LNSS.HHN. | ML:0.8 | 0.0000374 | 0.24 | AML | other | m | 2021-10-26T04:51:20.22 |
IV.LNSS.HHE. | ML:0.8 | 0.00003555 | 0.68 | AML | other | m | 2021-10-26T04:51:20.60 |