A magnitude Md 1.9 earthquake occured in region: 8 km W Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7960, 13.2020 at 10 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
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 | 8 | 1178 | 1178 |
Norcia | PG | 9 | 4957 | 6135 |
Castelsantangelo sul Nera | MC | 12 | 281 | 6416 |
Accumoli | RI | 12 | 667 | 7083 |
Montegallo | AP | 12 | 523 | 7606 |
Montemonaco | AP | 16 | 604 | 8210 |
Preci | PG | 16 | 724 | 8934 |
Acquasanta Terme | AP | 17 | 2916 | 11850 |
Ussita | MC | 17 | 444 | 12294 |
Cascia | PG | 18 | 3217 | 15511 |
Visso | MC | 18 | 1107 | 16618 |
Amatrice | RI | 20 | 2657 | 19275 |
Montefortino | FM | 20 | 1178 | 20453 |
Cittareale | RI | 20 | 482 | 20935 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 1.9 | 1985-04-22 10:00:16 |
42.796 | 13.202 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 5269 |
Field | Value |
---|---|
Time (UTC) | 1985-04-22 10:00:16 ± 0.434 |
Latitude | 42.7960 ± 0.0247 |
Longitude | 13.2020 ± 0.0359 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 5269 |
Field | Value |
---|---|
Preferred uncertainty description | horizontal uncertainty |
Semi-major axis of confidence ellipse (meter) | |
Semi-minor axis of confidence ellipse (meter) | |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 4017.8 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 132 |
Number of associated phases, regardless of their use for origin computation | 6 |
Number of defining phases | 6 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.9 |
Epicentral distance of station closest to the epicenter (degree) | 0.00235 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00356 |
Number of stations at which the event was observed | 3 |
Number of stations from which data was used for origin computation | 3 |
Field | Value |
---|---|
Value | 1.9 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 5269 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:09:45 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.CM2.Z. | 1985-04-22T10:00:32.30 | 10.0 | undecidable | manual | SG | 353 | 0.3996 | 0.95 | 0.6 | |
--.PO9.Z. | 1985-04-22T10:00:29.00 | 10.0 | undecidable | manual | SG | 221 | 0.2886 | 1.04 | 0.4 | |
--.ALP.Z. | 1985-04-22T10:00:28.10 | 10.0 | undecidable | manual | SG | 93 | 0.2553 | 0.92 | 0.7 | |
--.CM2.Z. | 1985-04-22T10:00:24.30 | 10.0 | undecidable | manual | PG | 353 | 0.3996 | -0.83 | 2.3 | |
--.PO9.Z. | 1985-04-22T10:00:22.00 | 10.0 | undecidable | manual | PG | 221 | 0.2886 | -1.18 | 0.9 | |
--.ALP.Z. | 1985-04-22T10:00:21.80 | 10.0 | undecidable | manual | PG | 93 | 0.2553 | -0.93 | 1.2 |