A magnitude Md 2.1 earthquake occured in region: 2 km S Preci (PG), on
and geographic coordinates (lat, lon) 42.8620, 13.0360 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 |
---|---|---|---|---|
Preci | PG | 2 | 724 | 724 |
Visso | MC | 9 | 1107 | 1831 |
Norcia | PG | 9 | 4957 | 6788 |
Sellano | PG | 9 | 1079 | 7867 |
Castelsantangelo sul Nera | MC | 10 | 281 | 8148 |
Cerreto di Spoleto | PG | 11 | 1075 | 9223 |
Ussita | MC | 13 | 444 | 9667 |
Monte Cavallo | MC | 15 | 145 | 9812 |
Cascia | PG | 16 | 3217 | 13029 |
Vallo di Nera | PG | 17 | 364 | 13393 |
Poggiodomo | PG | 19 | 117 | 13510 |
Fiordimonte | MC | 20 | 202 | 13712 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1990-09-20 10:49:21 |
42.862 | 13.036 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 127569 |
Field | Value |
---|---|
Time (UTC) | 1990-09-20 10:49:21 ± 0.438 |
Latitude | 42.8620 ± 0.0262 |
Longitude | 13.0360 ± 0.0246 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 127569 |
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) | 3533.3 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 203 |
Number of associated phases, regardless of their use for origin computation | 8 |
Number of defining phases | 8 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.00300 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00575 |
Number of stations at which the event was observed | 4 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 2.1 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 127569 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 18:58:38 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1990-09-20T10:49:45.50 | 10.0 | undecidable | manual | SG | 354 | 0.6327 | 1.66 | 0 | |
--.ALP.Z. | 1990-09-20T10:49:36.50 | 10.0 | undecidable | manual | SG | 101 | 0.3996 | 0.45 | 0.6 | |
--.CIO.Z. | 1990-09-20T10:49:34.20 | 10.0 | undecidable | manual | SG | 13 | 0.333 | -0.06 | 0.9 | |
--.ARV.Z. | 1990-09-20T10:49:34.00 | 10.0 | undecidable | manual | PG | 354 | 0.6327 | -0.34 | 1 | |
--.ASS.Z. | 1990-09-20T10:49:33.68 | 10.0 | undecidable | manual | SG | 305 | 0.3441 | -0.68 | 0.3 | |
--.ALP.Z. | 1990-09-20T10:49:29.60 | 10.0 | undecidable | manual | PG? | 101 | 0.3996 | -0.24 | 0.5 | |
--.ASS.Z. | 1990-09-20T10:49:29.15 | 10.0 | negative | manual | PG | 305 | 0.3441 | 0.28 | 2.6 | |
--.CIO.Z. | 1990-09-20T10:49:28.40 | 10.0 | undecidable | manual | PG | 13 | 0.333 | -0.41 | 2.2 |