A magnitude ML 0.8 earthquake occured in region: 3 km E Accumoli (RI), on
and geographic coordinates (lat, lon) 42.7040, 13.2820 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 |
---|---|---|---|---|
Accumoli | RI | 3 | 667 | 667 |
Arquata del Tronto | AP | 8 | 1178 | 1845 |
Amatrice | RI | 8 | 2657 | 4502 |
Acquasanta Terme | AP | 13 | 2916 | 7418 |
Cittareale | RI | 14 | 482 | 7900 |
Montegallo | AP | 16 | 523 | 8423 |
Campotosto | AQ | 18 | 542 | 8965 |
Valle Castellana | TE | 18 | 977 | 9942 |
Norcia | PG | 18 | 4957 | 14899 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2021-02-04 01:34:54 |
42.7038 | 13.2817 | 12 | 2021-02-04 01:48:24 |
Sala Sismica INGV-Roma | 86821341 |
Field | Value |
---|---|
Time (UTC) | 2021-02-04 01:34:54 ± 0.06 |
Latitude | 42.7038 ± 0.0036 |
Longitude | 13.2817 ± 0.0098 |
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 | 86821341 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 800 |
Semi-minor axis of confidence ellipse (meter) | 277 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 251 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 800.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 123 |
Number of associated phases, regardless of their use for origin computation | 12 |
Number of defining phases | 12 |
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) | 0.08364 |
Epicentral distance of station farthest from the epicenter (degree) | 0.25001 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.1 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 86821341 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-02-04 01:48:24 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.TERO.HHZ. | 2021-02-04T01:35:04.34 | 0.1 | undecidable | manual | S | 109 | 27.75 | 91 | -0.19 | 95 |
IV.MC2.EHZ. | 2021-02-04T01:35:03.69 | 0.3 | undecidable | manual | S | 342 | 24.2535 | 92 | 0.11 | 73 |
IV.RM33.EHZ. | 2021-02-04T01:35:03.04 | 0.1 | undecidable | manual | S | 194 | 22.2555 | 92 | -0.03 | 99 |
IV.NRCA.HHZ. | 2021-02-04T01:35:02.02 | 0.3 | undecidable | manual | S | 317 | 19.7691 | 93 | -0.38 | 70 |
IV.MMO1.EHZ. | 2021-02-04T01:35:02.93 | 0.1 | undecidable | manual | S | 10 | 21.9669 | 92 | -0.05 | 100 |
IV.TERO.HHZ. | 2021-02-04T01:35:00.38 | 0.1 | undecidable | manual | P | 109 | 27.75 | 91 | 0.02 | 99 |
IV.SMA1.EHZ. | 2021-02-04T01:34:59.54 | 0.1 | undecidable | manual | S | 152 | 9.2796 | 126 | -0.18 | 99 |
IV.RM33.EHZ. | 2021-02-04T01:34:59.63 | 0.3 | undecidable | manual | P | 194 | 22.2555 | 92 | 0.11 | 74 |
IV.MC2.EHZ. | 2021-02-04T01:34:59.91 | 0.1 | undecidable | manual | P | 342 | 24.2535 | 92 | 0.1 | 98 |
IV.NRCA.HHZ. | 2021-02-04T01:34:59.05 | 0.1 | undecidable | manual | P | 317 | 19.7691 | 93 | -0.08 | 100 |
IV.MMO1.EHZ. | 2021-02-04T01:34:59.55 | 0.1 | undecidable | manual | P | 10 | 21.9669 | 92 | 0.08 | 98 |
IV.SMA1.EHZ. | 2021-02-04T01:34:57.88 | 0.1 | undecidable | manual | P | 152 | 9.2796 | 126 | 0.3 | 96 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SMA1.EHE. | ML:0.8 | 0.00008205 | 1.62 | AML | other | m | 2021-02-04T01:34:59.92 |
IV.SMA1.EHN. | ML:0.9 | 0.00009995 | 0.72 | AML | other | m | 2021-02-04T01:35:00.92 |
IV.NRCA.HHN. | ML:0.7 | 0.0000334 | 0.8 | AML | other | m | 2021-02-04T01:35:02.53 |
IV.NRCA.HHE. | ML:0.8 | 0.0000376 | 0.86 | AML | other | m | 2021-02-04T01:35:02.97 |
IV.TERO.HHN. | ML:0.9 | 0.000045950000000000006 | 0.1 | AML | other | m | 2021-02-04T01:35:05.05 |
IV.TERO.HHE. | ML:0.8 | 0.000031 | 0.1 | AML | other | m | 2021-02-04T01:35:05.26 |