A magnitude ML 0.8 earthquake occured in region: 5 km W Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7810, 13.2430 at 11 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 | 5 | 1178 | 1178 |
Accumoli | RI | 10 | 667 | 1845 |
Montegallo | AP | 10 | 523 | 2368 |
Norcia | PG | 12 | 4957 | 7325 |
Acquasanta Terme | AP | 14 | 2916 | 10241 |
Castelsantangelo sul Nera | MC | 15 | 281 | 10522 |
Montemonaco | AP | 15 | 604 | 11126 |
Amatrice | RI | 17 | 2657 | 13783 |
Cittareale | RI | 19 | 482 | 14265 |
Montefortino | FM | 20 | 1178 | 15443 |
Preci | PG | 20 | 724 | 16167 |
Cascia | PG | 20 | 3217 | 19384 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2021-03-04 02:01:30 |
42.7813 | 13.2433 | 11 | 2021-03-04 02:07:49 |
Sala Sismica INGV-Roma | 87692211 |
Field | Value |
---|---|
Time (UTC) | 2021-03-04 02:01:30 ± 0.2 |
Latitude | 42.7813 ± 0.0099 |
Longitude | 13.2433 ± 0.0098 |
Depth (km) | 11 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 87692211 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1179 |
Semi-minor axis of confidence ellipse (meter) | 652 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 202 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1180.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 197 |
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) | 0.32 |
Epicentral distance of station closest to the epicenter (degree) | 0.10792 |
Epicentral distance of station farthest from the epicenter (degree) | 0.27969 |
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 | 0.3 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 87692211 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-03-04 02:07:49 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MF5.EHZ. | 2021-03-04T02:01:40.90 | 0.1 | undecidable | manual | S | 37 | 28.8489 | 50 | 0.51 | 88 |
IV.FDMO.HHZ. | 2021-03-04T02:01:40.63 | 0.1 | undecidable | manual | S | 336 | 31.0467 | 50 | -0.33 | 91 |
IV.FDMO.HHZ. | 2021-03-04T02:01:36.01 | 0.1 | undecidable | manual | P | 336 | 31.0467 | 50 | -0.4 | 90 |
IV.MMO1.EHZ. | 2021-03-04T02:01:36.33 | 0.1 | undecidable | manual | S | 27 | 14.7741 | 127 | -0.25 | 95 |
IV.MF5.EHZ. | 2021-03-04T02:01:36.19 | 0.1 | undecidable | manual | P | 37 | 28.8489 | 50 | 0.11 | 96 |
IV.MC2.EHZ. | 2021-03-04T02:01:36.93 | 0.1 | undecidable | manual | S | 343 | 15.0738 | 126 | 0.26 | 95 |
IV.NRCA.HHZ. | 2021-03-04T02:01:35.94 | 0.1 | undecidable | manual | S | 299 | 11.9769 | 132 | 0.1 | 99 |
IV.MTRA.HNZ. | 2021-03-04T02:01:35.72 | 0.1 | undecidable | manual | S | 102 | 12.7761 | 131 | -0.32 | 94 |
IV.MC2.EHZ. | 2021-03-04T02:01:33.94 | 0.1 | undecidable | manual | P | 343 | 15.0738 | 126 | 0 | 100 |
IV.NRCA.HHZ. | 2021-03-04T02:01:33.61 | 0.1 | undecidable | manual | P | 299 | 11.9769 | 132 | 0.16 | 97 |
IV.MMO1.EHZ. | 2021-03-04T02:01:33.72 | 0.1 | undecidable | manual | P | 27 | 14.7741 | 127 | -0.16 | 97 |
IV.MTRA.HNZ. | 2021-03-04T02:01:33.89 | 0.1 | undecidable | manual | P | 102 | 12.7761 | 131 | 0.32 | 94 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:0.8 | 0.0000756 | 0.12 | AML | other | m | 2021-03-04T02:01:36.07 |
IV.NRCA.HHN. | ML:0.9 | 0.00008645 | 0.12 | AML | other | m | 2021-03-04T02:01:36.17 |
IV.NRCA.HNE. | ML:0.9 | 0.00008110929 | 0.1312 | AML | other | m | 2021-03-04T02:01:36.07 |
IV.FDMO.HHN. | ML:0.0 | 0.0000040898094499999996 | 0.16 | AML | other | m | 2021-03-04T02:01:42.40 |