A magnitude Md 2.1 earthquake occured in region: 3 km W Cittareale (RI), on
and geographic coordinates (lat, lon) 42.6310, 13.1250 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 |
---|---|---|---|---|
Cittareale | RI | 3 | 482 | 482 |
Posta | RI | 12 | 694 | 1176 |
Accumoli | RI | 12 | 667 | 1843 |
Borbona | RI | 13 | 617 | 2460 |
Cascia | PG | 13 | 3217 | 5677 |
Amatrice | RI | 13 | 2657 | 8334 |
Monteleone di Spoleto | PG | 14 | 599 | 8933 |
Leonessa | RI | 15 | 2435 | 11368 |
Montereale | AQ | 15 | 2581 | 13949 |
Poggiodomo | PG | 18 | 117 | 14066 |
Norcia | PG | 18 | 4957 | 19023 |
Capitignano | AQ | 19 | 665 | 19688 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1991-08-16 02:01:00 |
42.631 | 13.125 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 147479 |
Field | Value |
---|---|
Time (UTC) | 1991-08-16 02:01:00 ± 0.201 |
Latitude | 42.6310 ± 0.0138 |
Longitude | 13.1250 ± 0.0251 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 147479 |
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) | 2557.4 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 152 |
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) | 0.4 |
Epicentral distance of station closest to the epicenter (degree) | 0.00308 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00785 |
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 | 4 |
Type of magnitude | Md |
Reference to an origin | 147479 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 19:17:40 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.ARV.Z. | 1991-08-16T02:01:29.28 | 10.0 | undecidable | manual | SG | 351 | 0.8769 | -0.92 | 0.1 | |
--.ASS.Z. | 1991-08-16T02:01:19.76 | 10.0 | undecidable | manual | SG | 321 | 0.5439 | -0.02 | 0.9 | |
--.ARV.Z. | 1991-08-16T02:01:18.60 | 10.0 | undecidable | manual | PG | 351 | 0.8769 | 0.58 | 0.8 | |
--.MNS.Z. | 1991-08-16T02:01:15.94 | 10.0 | undecidable | manual | SG | 233 | 0.3996 | 0.78 | 0.2 | |
--.AQU.Z. | 1991-08-16T02:01:12.70 | 10.0 | undecidable | manual | SG | 143 | 0.3441 | -0.36 | 0.7 | |
--.ASS.Z. | 1991-08-16T02:01:11.47 | 10.0 | undecidable | manual | PG | 321 | 0.5439 | 0 | 2.2 | |
--.MNS.Z. | 1991-08-16T02:01:08.23 | 10.0 | undecidable | manual | PG | 233 | 0.3996 | -0.57 | 1.1 | |
--.AQU.Z. | 1991-08-16T02:01:07.78 | 10.0 | undecidable | manual | PG | 143 | 0.3441 | 0.19 | 2 |