A magnitude ML 0.9 earthquake occured in region: 5 km N Accumoli (RI), on
and geographic coordinates (lat, lon) 42.7410, 13.2380 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 | 5 | 667 | 667 |
Arquata del Tronto | AP | 6 | 1178 | 1845 |
Amatrice | RI | 13 | 2657 | 4502 |
Norcia | PG | 13 | 4957 | 9459 |
Montegallo | AP | 14 | 523 | 9982 |
Acquasanta Terme | AP | 14 | 2916 | 12898 |
Cittareale | RI | 15 | 482 | 13380 |
Cascia | PG | 18 | 3217 | 16597 |
Castelsantangelo sul Nera | MC | 19 | 281 | 16878 |
Montemonaco | AP | 19 | 604 | 17482 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-12-07 17:18:12 |
42.741 | 13.2378 | 10 | 2021-12-07 17:28:04 |
Sala Sismica INGV-Roma | 98247891 |
Field | Value |
---|---|
Time (UTC) | 2021-12-07 17:18:12 ± 0.03 |
Latitude | 42.7410 ± 0.0018 |
Longitude | 13.2378 ± 0.0024 |
Depth (km) | 10 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 98247891 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 178 |
Semi-minor axis of confidence ellipse (meter) | 148 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 266 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 180.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 94 |
Number of associated phases, regardless of their use for origin computation | 10 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.07 |
Epicentral distance of station closest to the epicenter (degree) | 0.11781 |
Epicentral distance of station farthest from the epicenter (degree) | 0.23292 |
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 | 0.9 |
Uncertainty | 0.0 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 98247891 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-12-07 17:28:04 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RM33.EHZ. | 2021-12-07T17:18:21.61 | 0.3 | undecidable | manual | S | 184 | 25.8519 | 50 | 0 | 74 |
IV.LNSS.HHZ. | 2021-12-07T17:18:20.58 | 0.3 | undecidable | manual | S | 226 | 22.2555 | 115 | 0 | 75 |
IV.NRCA.HHZ. | 2021-12-07T17:18:18.15 | 0.1 | undecidable | manual | S | 316 | 14.3745 | 126 | -0.06 | 100 |
IV.SMA1.EHZ. | 2021-12-07T17:18:18.22 | 0.3 | undecidable | manual | S | 147 | 14.5743 | 125 | -0.06 | 75 |
IV.RM33.EHZ. | 2021-12-07T17:18:17.54 | 0.1 | undecidable | manual | P | 184 | 25.8519 | 50 | -0.04 | 98 |
IV.LNSS.HHZ. | 2021-12-07T17:18:16.99 | 0.1 | undecidable | manual | P | 226 | 22.2555 | 115 | 0 | 100 |
IV.MC2.EHZ. | 2021-12-07T17:18:16.47 | 0.1 | undecidable | manual | P | 348 | 19.3695 | 118 | 0 | 100 |
IV.MTRA.HNZ. | 2021-12-07T17:18:15.36 | 0.3 | undecidable | manual | P | 82 | 13.0758 | 128 | -0.05 | 75 |
IV.NRCA.HHZ. | 2021-12-07T17:18:15.70 | 0.1 | negative | manual | P | 316 | 14.3745 | 126 | 0.08 | 99 |
IV.SMA1.EHZ. | 2021-12-07T17:18:15.79 | 0.3 | positive | manual | P | 147 | 14.5743 | 125 | 0.13 | 74 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHN. | ML:0.9 | 0.00007255 | 0.38 | AML | other | m | 2021-12-07T17:18:18.21 |
IV.NRCA.HHE. | ML:0.8 | 0.0000639 | 0.16 | AML | other | m | 2021-12-07T17:18:18.34 |