A magnitude ML 0.8 earthquake occured in region: 4 km SE Massa Martana (PG), on
and geographic coordinates (lat, lon) 42.7530, 12.5590 at 9 km depth.
The earthquake was located by: Sala Sismica INGV-Roma.
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 |
---|---|---|---|---|
Massa Martana | PG | 4 | 3770 | 3770 |
Acquasparta | TR | 7 | 4778 | 8548 |
Giano dell'Umbria | PG | 9 | 3846 | 12394 |
Castel Ritaldi | PG | 12 | 3278 | 15672 |
Montecastrilli | TR | 13 | 5022 | 20694 |
Todi | PG | 13 | 16851 | 37545 |
Spoleto | PG | 15 | 38218 | 75763 |
Avigliano Umbro | TR | 15 | 2558 | 78321 |
San Gemini | TR | 15 | 5018 | 83339 |
Gualdo Cattaneo | PG | 18 | 6155 | 89494 |
Montefalco | PG | 18 | 5679 | 95173 |
Collazzone | PG | 19 | 3473 | 98646 |
Campello sul Clitunno | PG | 19 | 2442 | 101088 |
Monte Castello di Vibio | PG | 20 | 1567 | 102655 |
Fratta Todina | PG | 20 | 1839 | 104494 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2020-08-12 17:11:09 |
42.7528 | 12.5592 | 9 | 2020-08-12 17:34:49 |
Sala Sismica INGV-Roma | 81912961 |
Field | Value |
---|---|
Time (UTC) | 2020-08-12 17:11:09 ± 0.06 |
Latitude | 42.7528 ± 0.0027 |
Longitude | 12.5592 ± 0.0061 |
Depth (km) | 9 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 81912961 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 509 |
Semi-minor axis of confidence ellipse (meter) | 275 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 76 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 510.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 124 |
Number of associated phases, regardless of their use for origin computation | 29 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.18 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.47934 |
Number of stations at which the event was observed | 22 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 81912961 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-08-12 17:34:49 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.STV.HHZ. | 2020-08-12T17:13:02.25 | 3.0 | undecidable | manual | Sn | -1.46 | 0 | |||
MN.KEK.HHZ. | 2020-08-12T17:12:56.77 | 3.0 | undecidable | manual | Pg | 15.05 | 0 | |||
IV.CMPR.HHZ. | 2020-08-12T17:12:45.89 | 3.0 | undecidable | manual | Sg | 6.78 | 0 | |||
ST.RONC.EHZ. | 2020-08-12T17:12:41.29 | 3.0 | undecidable | manual | Sn | -7.73 | 0 | |||
AC.VLO.HHZ. | 2020-08-12T17:12:39.19 | 3.0 | undecidable | manual | Pn | 5.27 | 0 | |||
IV.TDS.HHZ. | 2020-08-12T17:12:25.58 | 3.0 | negative | manual | Pg | 11.86 | 0 | |||
IV.MBFT.HHZ. | 2020-08-12T17:12:23.07 | 3.0 | negative | manual | Pn | 0.61 | 0 | |||
OT.OT05.EHZ. | 2020-08-12T17:12:20.96 | 3.0 | undecidable | manual | Sn | -1.4 | 0 | |||
IV.SPS2.HHZ. | 2020-08-12T17:12:16.61 | 3.0 | positive | manual | Pn | -1.03 | 0 | |||
CR.STON.BHZ. | 2020-08-12T17:12:15.40 | 3.0 | positive | manual | Pg | 7.52 | 0 | |||
IV.QLNO.HHZ. | 2020-08-12T17:12:14.65 | 3.0 | undecidable | manual | Pg | 9.95 | 0 | |||
IV.SENA.HHZ. | 2020-08-12T17:12:06.05 | 3.0 | undecidable | manual | Pg | 3.98 | 0 | |||
GU.PCP.HHZ. | 2020-08-12T17:12:04.08 | 3.0 | negative | manual | Pn | -0.26 | 0 | |||
RD.PGF.BHZ. | 2020-08-12T17:12:02.26 | 3.0 | undecidable | manual | Pg | 8.68 | 0 | |||
IV.RIBO.EHZ.01 | 2020-08-12T17:11:33.37 | 3.0 | undecidable | manual | P | 0.41 | 0 | |||
IV.FDMO.HHZ. | 2020-08-12T17:11:26.50 | 0.3 | undecidable | manual | S | 54 | 53.2023 | 50 | 0.05 | 71 |
IV.MGAB.HHZ. | 2020-08-12T17:11:23.18 | 0.3 | undecidable | manual | S | 296 | 40.4262 | 50 | 0.14 | 71 |
IV.ASSB.HHZ. | 2020-08-12T17:11:20.78 | 0.3 | undecidable | manual | S | 14 | 33.1446 | 50 | -0.31 | 69 |
IV.FDMO.HHZ. | 2020-08-12T17:11:19.39 | 0.3 | undecidable | manual | P | 54 | 53.2023 | 50 | 0.21 | 68 |
IV.ARRO.EHZ. | 2020-08-12T17:11:18.72 | 0.3 | undecidable | manual | S | 139 | 25.5522 | 109 | 0.08 | 74 |
IV.MGAB.HHZ. | 2020-08-12T17:11:17.24 | 0.1 | undecidable | manual | P | 296 | 40.4262 | 50 | 0.02 | 97 |
IV.ASSB.HHZ. | 2020-08-12T17:11:15.91 | 0.1 | undecidable | manual | P | 14 | 33.1446 | 50 | -0.18 | 95 |
IV.CESX.HHZ. | 2020-08-12T17:11:15.32 | 0.3 | undecidable | manual | S | 172 | 16.1727 | 118 | -0.31 | 72 |
IV.ARRO.EHZ. | 2020-08-12T17:11:14.82 | 0.1 | undecidable | manual | P | 139 | 25.5522 | 109 | 0.15 | 97 |
IV.CESX.HHZ. | 2020-08-12T17:11:12.85 | 0.1 | undecidable | manual | P | 172 | 16.1727 | 118 | -0.08 | 100 |
IT.GNU.HGZ. | 2020-08-12T17:11:12.77 | 0.3 | undecidable | manual | S | 9 | 5.6943 | 147 | -0.1 | 76 |
IV.MOMA.HHZ. | 2020-08-12T17:11:12.72 | 0.3 | undecidable | manual | S | 9 | 5.6943 | 147 | -0.15 | 75 |
IT.GNU.HGZ. | 2020-08-12T17:11:11.52 | 0.1 | undecidable | manual | P | 9 | 5.6943 | 147 | 0.18 | 100 |
IV.MOMA.HHZ. | 2020-08-12T17:11:11.54 | 0.1 | negative | manual | P | 9 | 5.6943 | 147 | 0.2 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.CESX.HHN. | ML:0.9 | 0.0000824 | 0.92 | AML | other | m | 2020-08-12T17:11:16.38 |
IV.CESX.HHE. | ML:0.8 | 0.00006465 | 0.32 | AML | other | m | 2020-08-12T17:11:17.20 |
IV.ASSB.HHN. | ML:0.8 | 0.000022800000000000002 | 0.16 | AML | other | m | 2020-08-12T17:11:22.33 |
IV.ASSB.HHE. | ML:0.8 | 0.000023800000000000003 | 0.1 | AML | other | m | 2020-08-12T17:11:22.38 |
IV.MGAB.HHN. | ML:1.1 | 0.000043049999999999996 | 0.92 | AML | other | m | 2020-08-12T17:11:24.76 |
IV.MGAB.HHE. | ML:0.9 | 0.000023449999999999997 | 0.22 | AML | other | m | 2020-08-12T17:11:25.14 |
IV.FDMO.HHN. | ML:0.6 | 0.00001235 | 1.4 | AML | other | m | 2020-08-12T17:11:27.82 |
IV.FDMO.HHE. | ML:0.8 | 0.000013599999999999999 | 0.18 | AML | other | m | 2020-08-12T17:11:27.33 |