A magnitude Md 2.4 earthquake occured in region: 5 km SW Acquasanta Terme (AP), on
and geographic coordinates (lat, lon) 42.7290, 13.3860 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 |
---|---|---|---|---|
Acquasanta Terme | AP | 5 | 2916 | 2916 |
Arquata del Tronto | AP | 9 | 1178 | 4094 |
Valle Castellana | TE | 9 | 977 | 5071 |
Accumoli | RI | 12 | 667 | 5738 |
Rocca Santa Maria | TE | 13 | 537 | 6275 |
Montegallo | AP | 13 | 523 | 6798 |
Amatrice | RI | 14 | 2657 | 9455 |
Cortino | TE | 16 | 656 | 10111 |
Roccafluvione | AP | 17 | 2010 | 12121 |
Campotosto | AQ | 19 | 542 | 12663 |
Venarotta | AP | 19 | 2066 | 14729 |
Montemonaco | AP | 20 | 604 | 15333 |
Palmiano | AP | 20 | 196 | 15529 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.4
ML-VAX 1.7 |
1987-07-21 15:58:00 |
42.729 | 13.386 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 52629 |
Field | Value |
---|---|
Time (UTC) | 1987-07-21 15:58:00 ± 0.121 |
Latitude | 42.7290 ± 0.0070 |
Longitude | 13.3860 ± 0.0106 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 52629 |
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) | 1164.6 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 109 |
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) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.00121 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00745 |
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 | 2.4 |
Uncertainty | |
Num. used stations | 4 |
Type of magnitude | Md |
Reference to an origin | 52629 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:50:49 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 52629 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 13:07:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.AM8.Z. | 1987-07-21T15:58:30.27 | 10.0 | undecidable | manual | SG | 10 | 0.8214 | 0.93 | 0.1 | |
--.ARV.Z. | 1987-07-21T15:58:29.43 | 10.0 | undecidable | manual | SG | 337 | 0.8214 | 0.1 | 0.5 | |
--.MNS.Z. | 1987-07-21T15:58:23.00 | 10.0 | undecidable | manual | SG | 236 | 0.6216 | 0.48 | 0.3 | |
--.ASS.Z. | 1987-07-21T15:58:23.48 | 10.0 | undecidable | manual | SG | 302 | 0.6327 | 0.64 | 0.2 | |
--.CM8.Z. | 1987-07-21T15:58:18.75 | 10.0 | undecidable | manual | SG | 339 | 0.4995 | 0.21 | 0.9 | |
--.AM8.Z. | 1987-07-21T15:58:17.20 | 10.0 | undecidable | manual | PG | 10 | 0.8214 | 0 | 1.4 | |
--.ARV.Z. | 1987-07-21T15:58:16.53 | 10.0 | undecidable | manual | PG | 337 | 0.8214 | -0.67 | 0.4 | |
--.AQU.Z. | 1987-07-21T15:58:14.74 | 10.0 | undecidable | manual | SG | 178 | 0.3663 | 0.16 | 0.6 | |
--.ASS.Z. | 1987-07-21T15:58:13.77 | 10.0 | undecidable | manual | PG | 302 | 0.6327 | 0.32 | 1.2 | |
--.MNS.Z. | 1987-07-21T15:58:13.14 | 10.0 | undecidable | manual | PG | 236 | 0.6216 | -0.13 | 1.5 | |
--.CM8.Z. | 1987-07-21T15:58:10.40 | 10.0 | negative | manual | PG | 339 | 0.4995 | -0.57 | 1.3 | |
--.AQU.Z. | 1987-07-21T15:58:08.52 | 10.0 | undecidable | manual | PG | 178 | 0.3663 | -0.16 | 1.6 | |
--.ALP.Z. | 1987-07-21T15:58:07.00 | 10.0 | undecidable | manual | SG | 68 | 0.1332 | -0.13 | 0.9 | |
--.ALP.Z. | 1987-07-21T15:58:04.55 | 10.0 | negative | manual | PG | 68 | 0.1332 | 0.17 | 3.1 |