A magnitude ML 0.9 earthquake occured in region: 3 km NW Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7880, 13.2660 at 14 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 | 3 | 1178 | 1178 |
Montegallo | AP | 8 | 523 | 1701 |
Accumoli | RI | 10 | 667 | 2368 |
Acquasanta Terme | AP | 12 | 2916 | 5284 |
Montemonaco | AP | 14 | 604 | 5888 |
Norcia | PG | 14 | 4957 | 10845 |
Castelsantangelo sul Nera | MC | 15 | 281 | 11126 |
Amatrice | RI | 18 | 2657 | 13783 |
Montefortino | FM | 18 | 1178 | 14961 |
Roccafluvione | AP | 19 | 2010 | 16971 |
Valle Castellana | TE | 20 | 977 | 17948 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-03-04 02:02:36 |
42.7882 | 13.2657 | 14 | 2021-03-04 02:08:51 |
Sala Sismica INGV-Roma | 87692241 |
Field | Value |
---|---|
Time (UTC) | 2021-03-04 02:02:36 ± 0.09 |
Latitude | 42.7882 ± 0.0027 |
Longitude | 13.2657 ± 0.0049 |
Depth (km) | 14 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 87692241 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 429 |
Semi-minor axis of confidence ellipse (meter) | 98 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 243 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 430.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 148 |
Number of associated phases, regardless of their use for origin computation | 14 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.14 |
Epicentral distance of station closest to the epicenter (degree) | 0.11961 |
Epicentral distance of station farthest from the epicenter (degree) | 0.29857 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.6 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 87692241 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-03-04 02:08:51 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.TERO.HHZ. | 2021-03-04T02:02:47.71 | 0.3 | undecidable | manual | S | 124 | 33.1446 | 98 | -0.12 | 71 |
IV.FDMO.HHZ. | 2021-03-04T02:02:47.10 | 0.3 | undecidable | manual | S | 332 | 31.1466 | 99 | -0.2 | 70 |
IV.RM33.EHZ. | 2021-03-04T02:02:47.30 | 0.6 | undecidable | manual | S | 188 | 31.2465 | 99 | -0.04 | 49 |
IV.GAVE.EHZ. | 2021-03-04T02:02:47.76 | 0.3 | undecidable | manual | S | 251 | 32.0457 | 98 | 0.21 | 70 |
IV.SMA1.EHZ. | 2021-03-04T02:02:44.01 | 0.3 | undecidable | manual | S | 162 | 18.3705 | 112 | 0 | 75 |
IV.TERO.HHZ. | 2021-03-04T02:02:43.15 | 0.6 | positive | manual | P | 124 | 33.1446 | 98 | 0.12 | 48 |
IV.MC2.EHZ. | 2021-03-04T02:02:43.54 | 0.3 | undecidable | manual | S | 336 | 14.9739 | 119 | 0.34 | 71 |
IV.GAVE.EHZ. | 2021-03-04T02:02:42.85 | 1.0 | positive | manual | P | 251 | 32.0457 | 98 | -0.02 | 24 |
IV.NRCA.HHZ. | 2021-03-04T02:02:42.53 | 0.6 | undecidable | manual | S | 292 | 13.2756 | 124 | -0.28 | 48 |
IV.FDMO.HHZ. | 2021-03-04T02:02:42.62 | 0.1 | undecidable | manual | P | 332 | 31.1466 | 99 | -0.11 | 95 |
IV.RM33.EHZ. | 2021-03-04T02:02:42.76 | 1.0 | undecidable | manual | P | 188 | 31.2465 | 99 | 0.01 | 24 |
IV.MC2.EHZ. | 2021-03-04T02:02:40.54 | 1.0 | negative | manual | P | 336 | 14.9739 | 119 | 0.18 | 24 |
IV.SMA1.EHZ. | 2021-03-04T02:02:40.88 | 1.0 | undecidable | manual | P | 162 | 18.3705 | 112 | 0.05 | 25 |
IV.NRCA.HHZ. | 2021-03-04T02:02:40.11 | 0.1 | negative | manual | P | 292 | 13.2756 | 124 | -0.02 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:1.3 | 0.000185 | 0.12 | AML | other | m | 2021-03-04T02:02:42.61 |
IV.NRCA.HHN. | ML:1.4 | 0.00020500000000000002 | 0.12 | AML | other | m | 2021-03-04T02:02:42.71 |
IV.TERO.HHN. | ML:0.4 | 0.000010365 | 0.58 | AML | other | m | 2021-03-04T02:02:48.15 |
IV.TERO.HHE. | ML:0.4 | 0.0000121 | 0.08 | AML | other | m | 2021-03-04T02:02:49.27 |