A magnitude ML 1.7 earthquake occured in region: Tirreno Centrale (MARE), on
and geographic coordinates (lat, lon) 40.9540, 13.2670 at 14 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.
No Italian municipalities within 20 km distance.
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.7 | 2015-08-20 22:50:39 |
40.9542 | 13.2667 | 14 | 2016-01-08 08:46:44 |
Bollettino Sismico Italiano INGV | 21005041 |
Reviewed Rev100 |
ML 1.6 | 2015-08-20 22:50:39 |
40.9907 | 13.3068 | 7 | 2015-08-20 23:03:06 |
Sala Sismica INGV-Roma | 20997761 |
Field | Value |
---|---|
Time (UTC) | 2015-08-20 22:50:39 ± 0.22 |
Latitude | 40.9542 ± 0.0099 |
Longitude | 13.2667 ± 0.0214 |
Depth (km) | 14 ± 3 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 21005041 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1741 |
Semi-minor axis of confidence ellipse (meter) | 669 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 70 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1740.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 193 |
Number of associated phases, regardless of their use for origin computation | 23 |
Number of defining phases | 21 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.39 |
Epicentral distance of station closest to the epicenter (degree) | 0.19785 |
Epicentral distance of station farthest from the epicenter (degree) | 1.05221 |
Number of stations at which the event was observed | 15 |
Number of stations from which data was used for origin computation | 14 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.2 |
Num. used stations | 5 |
Type of magnitude | ML |
Reference to an origin | 21005041 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-11-12 10:09:08 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.2 |
Num. used stations | 5 |
Type of magnitude | ML |
Reference to an origin | 20997761 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2015-08-20 23:03:06 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.VVLD.HHZ. | 2015-08-20T22:51:09.81 | 0.6 | undecidable | manual | S | 16 | 105.8163 | 91 | 0.09 | 45 |
IV.GUAR.HHN. | 2015-08-20T22:51:07.79 | 0.6 | undecidable | manual | S | 2 | 93.3399 | 1.4 | 30 | |
IV.POFI.HHE. | 2015-08-20T22:51:05.80 | 0.6 | undecidable | manual | S | 24 | 92.4408 | 92 | -0.36 | 45 |
IV.GIUL.HHZ. | 2015-08-20T22:50:59.90 | 0.6 | undecidable | manual | S | 359 | 66.9774 | 93 | 0.52 | 46 |
IV.MIDA.HNZ. | 2015-08-20T22:50:58.23 | 0.3 | undecidable | manual | P | 47 | 112.1988 | 91 | 0.5 | 60 |
IV.PAOL.HHE. | 2015-08-20T22:50:58.24 | 0.6 | undecidable | manual | P | 85 | 109.3128 | 91 | 0.96 | 32 |
IV.LATB.EHE. | 2015-08-20T22:50:58.80 | 0.6 | undecidable | manual | S | 337 | 64.9905 | 93 | -0.05 | 46 |
IV.VITU.HHZ. | 2015-08-20T22:50:58.08 | 0.3 | undecidable | manual | P | 77 | 116.7942 | 91 | -0.37 | 64 |
IV.LIK.EHZ. | 2015-08-20T22:50:58.86 | 3.0 | undecidable | manual | S | 59.8956 | 0.31 | 0 | ||
IV.CERT.HHZ. | 2015-08-20T22:50:57.68 | 0.3 | undecidable | manual | P | 348 | 112.8981 | 91 | -0.15 | 63 |
IV.VVLD.HHZ. | 2015-08-20T22:50:56.31 | 0.3 | undecidable | manual | P | 16 | 105.8163 | 91 | -0.43 | 62 |
IV.VAGA.HHE. | 2015-08-20T22:50:55.61 | 0.3 | undecidable | manual | P | 57 | 95.6376 | 92 | 0.43 | 63 |
IV.MODR.HHZ. | 2015-08-20T22:50:55.60 | 0.6 | undecidable | manual | S | 67 | 55.4001 | 93 | -0.67 | 47 |
IV.GUAR.HHN. | 2015-08-20T22:50:55.01 | 0.3 | undecidable | manual | P | 2 | 93.3399 | 0.19 | 70 | |
IV.POFI.HHE. | 2015-08-20T22:50:54.09 | 0.3 | undecidable | manual | P | 24 | 92.4408 | 92 | -0.59 | 61 |
IV.CERA.HHE. | 2015-08-20T22:50:54.95 | 0.3 | undecidable | manual | P | 41 | 95.0382 | 92 | -0.13 | 70 |
IV.PIGN.HHZ. | 2015-08-20T22:50:53.30 | 1.0 | undecidable | manual | P | 70 | 81.0522 | 92 | 0.36 | 22 |
IV.GIUL.HHZ. | 2015-08-20T22:50:50.86 | 0.1 | undecidable | manual | P | 359 | 66.9774 | 93 | 0.09 | 98 |
IV.LIK.EHZ. | 2015-08-20T22:50:50.35 | 3.0 | undecidable | manual | P | 59.8956 | 0.01 | 0 | ||
IV.LATB.EHE. | 2015-08-20T22:50:50.27 | 0.3 | undecidable | manual | P | 337 | 64.9905 | 93 | -0.19 | 68 |
IV.MODR.HHZ. | 2015-08-20T22:50:48.07 | 0.1 | undecidable | manual | P | 67 | 55.4001 | 93 | -0.91 | 81 |
IV.VENT.EHZ. | 2015-08-20T22:50:47.50 | 0.3 | undecidable | manual | S | 144 | 21.9669 | 104 | 0.09 | 79 |
IV.VENT.EHZ. | 2015-08-20T22:50:44.27 | 0.1 | undecidable | manual | P | 144 | 21.9669 | 104 | 0.41 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.CERT.HHE. | ML:1.7 | 0.000041599999999999995 | 0.5 | AML | other | m | 2015-08-20T22:51:17.30 |
IV.CERT.HHN. | ML:1.5 | 0.00002325 | 1.28 | AML | other | m | 2015-08-20T22:51:17.06 |
IV.GIUL.HHN. | ML:1.8 | 0.000127 | 0.6 | AML | other | m | 2015-08-20T22:51:01.61 |
IV.GIUL.HHE. | ML:1.8 | 0.0001125 | 1.44 | AML | other | m | 2015-08-20T22:51:01.74 |
IV.MODR.HHE. | ML:1.7 | 0.0001065 | 1 | AML | other | m | 2015-08-20T22:50:58.10 |
IV.MODR.HHN. | ML:1.7 | 0.0001172 | 1.04 | AML | other | m | 2015-08-20T22:50:58.37 |
IV.PIGN.HHN. | ML:1.4 | 0.000030600000000000005 | 0.44 | AML | other | m | 2015-08-20T22:51:05.51 |
IV.PIGN.HHE. | ML:1.6 | 0.000049699999999999995 | 1.22 | AML | other | m | 2015-08-20T22:51:09.22 |
IV.VITU.HHE. | ML:1.8 | 0.0000543 | 0.9 | AML | other | m | 2015-08-20T22:51:17.56 |
IV.VITU.HHN. | ML:1.8 | 0.00005165 | 0.48 | AML | other | m | 2015-08-20T22:51:17.97 |