A magnitude ML 1.4 earthquake occured in region: 4 km SE Accumoli (RI), on
and geographic coordinates (lat, lon) 42.6780, 13.2870 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 |
---|---|---|---|---|
Accumoli | RI | 4 | 667 | 667 |
Amatrice | RI | 5 | 2657 | 3324 |
Arquata del Tronto | AP | 11 | 1178 | 4502 |
Cittareale | RI | 12 | 482 | 4984 |
Acquasanta Terme | AP | 14 | 2916 | 7900 |
Campotosto | AQ | 15 | 542 | 8442 |
Montereale | AQ | 17 | 2581 | 11023 |
Capitignano | AQ | 18 | 665 | 11688 |
Valle Castellana | TE | 19 | 977 | 12665 |
Montegallo | AP | 19 | 523 | 13188 |
Cortino | TE | 19 | 656 | 13844 |
Rocca Santa Maria | TE | 20 | 537 | 14381 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.4 | 2021-10-28 02:55:25 |
42.6778 | 13.2867 | 9 | 2021-10-28 02:59:46 |
Sala Sismica INGV-Roma | 97031791 |
Field | Value |
---|---|
Time (UTC) | 2021-10-28 02:55:25 ± 0.09 |
Latitude | 42.6778 ± 0.0045 |
Longitude | 13.2867 ± 0.0049 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 97031791 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 454 |
Semi-minor axis of confidence ellipse (meter) | 231 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 352 |
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) | 57 |
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) | 0.27 |
Epicentral distance of station closest to the epicenter (degree) | 0.05936 |
Epicentral distance of station farthest from the epicenter (degree) | 0.41818 |
Number of stations at which the event was observed | 12 |
Number of stations from which data was used for origin computation | 12 |
Field | Value |
---|---|
Value | 1.4 |
Uncertainty | 0.2 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 97031791 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-28 02:59:46 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MF5.EHZ. | 2021-10-28T02:55:39.27 | 0.1 | undecidable | manual | S | 22 | 37.1295 | 50 | 0.69 | 77 |
IV.GAVE.EHZ. | 2021-10-28T02:55:36.80 | 0.1 | undecidable | manual | S | 273 | 32.0457 | 105 | -0.34 | 92 |
IV.TERO.HHZ. | 2021-10-28T02:55:35.02 | 0.1 | undecidable | manual | S | 103 | 26.5512 | 108 | -0.31 | 93 |
IV.MC2.EHZ. | 2021-10-28T02:55:35.94 | 0.1 | undecidable | manual | S | 343 | 27.1506 | 107 | 0.44 | 90 |
IV.MMO1.EHZ. | 2021-10-28T02:55:34.51 | 0.1 | undecidable | manual | S | 8 | 24.753 | 109 | -0.23 | 95 |
IV.CSP1.EHZ. | 2021-10-28T02:55:34.21 | 0.6 | negative | manual | P | 352 | 46.4202 | 50 | -0.33 | 45 |
IV.GUMA.HHZ. | 2021-10-28T02:55:34.13 | 0.6 | positive | manual | P | 5 | 42.9237 | 50 | 0.14 | 46 |
IV.MF5.EHZ. | 2021-10-28T02:55:33.22 | 1.0 | positive | manual | P | 22 | 37.1295 | 50 | 0.11 | 23 |
IV.NRCA.HHZ. | 2021-10-28T02:55:33.62 | 0.1 | undecidable | manual | S | 321 | 22.2555 | 111 | -0.29 | 93 |
IV.LNSS.HHZ. | 2021-10-28T02:55:33.96 | 0.1 | undecidable | manual | S | 248 | 21.7671 | 111 | 0.21 | 96 |
IV.GAVE.EHZ. | 2021-10-28T02:55:32.01 | 0.6 | positive | manual | P | 273 | 32.0457 | 105 | -0.27 | 47 |
IV.MC2.EHZ. | 2021-10-28T02:55:31.28 | 1.0 | negative | manual | P | 343 | 27.1506 | 107 | -0.05 | 24 |
IV.TERO.HHZ. | 2021-10-28T02:55:31.15 | 0.6 | undecidable | manual | P | 103 | 26.5512 | 108 | -0.09 | 49 |
IV.NRCA.HHZ. | 2021-10-28T02:55:30.34 | 0.1 | undecidable | manual | P | 321 | 22.2555 | 111 | -0.08 | 98 |
IV.LNSS.HHZ. | 2021-10-28T02:55:30.54 | 0.1 | positive | manual | P | 248 | 21.7671 | 111 | 0.22 | 95 |
IV.RM33.EHZ. | 2021-10-28T02:55:30.28 | 1.0 | positive | manual | P | 197 | 19.6692 | 114 | 0.35 | 23 |
IV.MMO1.EHZ. | 2021-10-28T02:55:30.76 | 0.1 | positive | manual | P | 8 | 24.753 | 109 | -0.13 | 97 |
IV.MTRA.EHZ. | 2021-10-28T02:55:30.80 | 0.1 | undecidable | manual | S | 46 | 12.4764 | 124 | -0.1 | 99 |
IV.MTRA.EHZ. | 2021-10-28T02:55:28.74 | 0.1 | undecidable | manual | P | 46 | 12.4764 | 124 | 0.06 | 100 |
IV.SMA1.EHZ. | 2021-10-28T02:55:28.03 | 0.1 | positive | manual | P | 143 | 6.5934 | 142 | 0.23 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MTRA.EHN. | ML:1.4 | 0.000321 | 0.3 | AML | other | m | 2021-10-28T02:55:31.45 |
IV.MTRA.HNN. | ML:1.5 | 0.00035099999999999997 | 1.02 | AML | other | m | 2021-10-28T02:55:31.45 |
IV.MTRA.HNE. | ML:1.6 | 0.000469 | 1.16 | AML | other | m | 2021-10-28T02:55:31.07 |
IV.MTRA.EHE. | ML:1.5 | 0.00036899999999999997 | 0.6 | AML | other | m | 2021-10-28T02:55:32.44 |
IV.SMA1.EHE. | ML:1.4 | 0.00045200000000000004 | 0.38 | AML | other | m | 2021-10-28T02:55:33.51 |
IV.SMA1.EHN. | ML:1.2 | 0.0002595 | 0.36 | AML | other | m | 2021-10-28T02:55:33.68 |
IV.RM33.EHN. | ML:1.0 | 0.0000703 | 0.44 | AML | other | m | 2021-10-28T02:55:33.88 |
IV.NRCA.HHN. | ML:1.1 | 0.00009584999999999999 | 1.62 | AML | other | m | 2021-10-28T02:55:34.05 |
IV.LNSS.HHN. | ML:1.6 | 0.00029099999999999997 | 0.2 | AML | other | m | 2021-10-28T02:55:34.36 |
IV.LNSS.HHE. | ML:1.6 | 0.00027899999999999995 | 0.34 | AML | other | m | 2021-10-28T02:55:34.38 |
IV.NRCA.HHE. | ML:1.5 | 0.0002045 | 1.1 | AML | other | m | 2021-10-28T02:55:34.17 |
IV.RM33.EHE. | ML:1.2 | 0.00011954999999999999 | 0.4 | AML | other | m | 2021-10-28T02:55:36.25 |
IV.GAVE.EHN. | ML:1.3 | 0.00009995000000000002 | 0.48 | AML | other | m | 2021-10-28T02:55:37.06 |
IV.GAVE.EHE. | ML:1.3 | 0.00009065000000000001 | 0.84 | AML | other | m | 2021-10-28T02:55:38.33 |