A magnitude ML 1.1 earthquake occured in region: 2 km E Accumoli (RI), on
and geographic coordinates (lat, lon) 42.7050, 13.2720 at 10 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 | 2 | 667 | 667 |
Arquata del Tronto | AP | 8 | 1178 | 1845 |
Amatrice | RI | 8 | 2657 | 4502 |
Cittareale | RI | 13 | 482 | 4984 |
Acquasanta Terme | AP | 13 | 2916 | 7900 |
Montegallo | AP | 16 | 523 | 8423 |
Norcia | PG | 18 | 4957 | 13380 |
Campotosto | AQ | 18 | 542 | 13922 |
Valle Castellana | TE | 19 | 977 | 14899 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2021-02-04 00:57:46 |
42.7052 | 13.2722 | 10 | 2021-02-04 01:21:24 |
Sala Sismica INGV-Roma | 86821181 |
Field | Value |
---|---|
Time (UTC) | 2021-02-04 00:57:46 ± 0.09 |
Latitude | 42.7052 ± 0.0036 |
Longitude | 13.2722 ± 0.0061 |
Depth (km) | 10 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 86821181 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 441 |
Semi-minor axis of confidence ellipse (meter) | 310 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 97 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 440.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 79 |
Number of associated phases, regardless of their use for origin computation | 21 |
Number of defining phases | 20 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.23 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.42808 |
Number of stations at which the event was observed | 13 |
Number of stations from which data was used for origin computation | 12 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.1 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 86821181 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-02-04 01:21:24 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.TERO.HHZ. | 2021-02-04T00:57:55.65 | 0.6 | undecidable | manual | S | 109 | 28.5492 | 50 | -0.68 | 41 |
IV.MNTT.EHZ. | 2021-02-04T00:57:55.77 | 0.6 | positive | manual | P | 33 | 47.5191 | 50 | 0.88 | 37 |
IV.MC2.EHZ. | 2021-02-04T00:57:54.94 | 0.6 | undecidable | manual | S | 344 | 23.8539 | 113 | -0.07 | 49 |
IV.MMO1.EHZ. | 2021-02-04T00:57:54.18 | 0.6 | undecidable | manual | S | 12 | 21.9669 | 115 | -0.24 | 47 |
IV.LNSS.HHZ. | 2021-02-04T00:57:54.41 | 0.6 | undecidable | manual | S | 239 | 22.0668 | 115 | -0.03 | 50 |
IV.RM33.EHZ. | 2021-02-04T00:57:54.29 | 0.6 | undecidable | manual | S | 192 | 22.2555 | 114 | -0.22 | 48 |
IV.CSP1.EHZ. | 2021-02-04T00:57:54.15 | 1.0 | positive | manual | P | 353 | 43.2234 | 50 | -0.08 | 24 |
IV.NRCA.HHZ. | 2021-02-04T00:57:53.22 | 0.6 | undecidable | manual | S | 318 | 19.1697 | 118 | -0.33 | 47 |
IV.FDMO.HHZ. | 2021-02-04T00:57:53.51 | 1.0 | positive | manual | P | 338 | 39.7269 | 50 | -0.18 | 23 |
IV.MF5.EHZ. | 2021-02-04T00:57:53.31 | 0.6 | positive | manual | P | 26 | 34.8429 | 50 | 0.37 | 45 |
IV.GAVE.EHZ. | 2021-02-04T00:57:52.29 | 3.0 | negative | manual | P | -0.08 | 0 | |||
IV.MC2.EHZ. | 2021-02-04T00:57:51.22 | 0.6 | negative | manual | P | 344 | 23.8539 | 113 | 0.01 | 50 |
IV.TERO.HHZ. | 2021-02-04T00:57:51.69 | 0.6 | positive | manual | P | 109 | 28.5492 | 50 | -0.28 | 47 |
IV.MTRA.EHZ. | 2021-02-04T00:57:51.08 | 0.6 | undecidable | manual | S | 61 | 11.6772 | 131 | -0.29 | 48 |
IV.LNSS.HHZ. | 2021-02-04T00:57:50.91 | 0.1 | undecidable | manual | P | 239 | 22.0668 | 115 | 0.02 | 99 |
IV.RM33.EHZ. | 2021-02-04T00:57:50.94 | 0.6 | undecidable | manual | P | 192 | 22.2555 | 114 | 0.02 | 50 |
IV.NRCA.HHZ. | 2021-02-04T00:57:50.38 | 0.1 | negative | manual | P | 318 | 19.1697 | 118 | 0.01 | 100 |
IV.SMA1.EHZ. | 2021-02-04T00:57:50.85 | 0.6 | undecidable | manual | S | 148 | 9.7791 | 136 | -0.05 | 50 |
IV.MMO1.EHZ. | 2021-02-04T00:57:50.86 | 0.6 | undecidable | manual | P | 12 | 21.9669 | 115 | -0.01 | 50 |
IV.SMA1.EHZ. | 2021-02-04T00:57:49.19 | 0.1 | negative | manual | P | 148 | 9.7791 | 136 | 0.35 | 95 |
IV.MTRA.EHZ. | 2021-02-04T00:57:49.31 | 0.1 | positive | manual | P | 61 | 11.6772 | 131 | 0.2 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SMA1.EHN. | ML:1.2 | 0.00019250000000000002 | 0.3 | AML | other | m | 2021-02-04T00:57:51.20 |
IV.SMA1.EHE. | ML:1.1 | 0.000158 | 0.58 | AML | other | m | 2021-02-04T00:57:51.39 |
IV.NRCA.HHN. | ML:1.0 | 0.00006984999999999999 | 0.82 | AML | other | m | 2021-02-04T00:57:54.19 |
IV.NRCA.HHE. | ML:1.0 | 0.00007285 | 0.1 | AML | other | m | 2021-02-04T00:57:54.28 |
IV.RM33.EHE. | ML:0.9 | 0.00005595 | 1.3 | AML | other | m | 2021-02-04T00:57:55.19 |
IV.RM33.EHN. | ML:1.0 | 0.00005789999999999999 | 0.42 | AML | other | m | 2021-02-04T00:57:55.82 |
IV.TERO.HHN. | ML:1.3 | 0.00010350000000000001 | 0.1 | AML | other | m | 2021-02-04T00:57:56.37 |
IV.TERO.HHE. | ML:1.2 | 0.0000747 | 0.12 | AML | other | m | 2021-02-04T00:57:56.53 |