A magnitude ML 1.6 earthquake occured in region: 4 km SE Massa Martana (PG), on
and geographic coordinates (lat, lon) 42.7410, 12.5430 at 9 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 |
---|---|---|---|---|
Massa Martana | PG | 4 | 3770 | 3770 |
Acquasparta | TR | 6 | 4778 | 8548 |
Giano dell'Umbria | PG | 11 | 3846 | 12394 |
Montecastrilli | TR | 11 | 5022 | 17416 |
Todi | PG | 12 | 16851 | 34267 |
Avigliano Umbro | TR | 13 | 2558 | 36825 |
Castel Ritaldi | PG | 14 | 3278 | 40103 |
San Gemini | TR | 14 | 5018 | 45121 |
Spoleto | PG | 16 | 38218 | 83339 |
Gualdo Cattaneo | PG | 19 | 6155 | 89494 |
Collazzone | PG | 19 | 3473 | 92967 |
Monte Castello di Vibio | PG | 19 | 1567 | 94534 |
Montefalco | PG | 19 | 5679 | 100213 |
Fratta Todina | PG | 19 | 1839 | 102052 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.6 | 2020-08-04 21:14:41 |
42.7413 | 12.5433 | 9 | 2020-11-19 12:36:57 |
Bollettino Sismico Italiano INGV | 81849221 |
Reviewed Rev100 |
ML 1.6 | 2020-08-04 21:14:41 |
42.7387 | 12.5482 | 9 | 2020-08-04 21:29:15 |
Sala Sismica INGV-Roma | 81657151 |
Field | Value |
---|---|
Time (UTC) | 2020-08-04 21:14:41 ± 0.1 |
Latitude | 42.7413 ± 0.0045 |
Longitude | 12.5433 ± 0.0086 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 81849221 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 726 |
Semi-minor axis of confidence ellipse (meter) | 502 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 256 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 730.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 133 |
Number of associated phases, regardless of their use for origin computation | 34 |
Number of defining phases | 18 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.28 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.71496 |
Number of stations at which the event was observed | 25 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.3 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 81849221 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2020-08-10 15:19:50 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.3 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 81657151 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-08-04 21:29:15 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CGL.BHZ. | 2020-08-04T21:16:30.48 | 3.0 | undecidable | manual | Sn | -4.22 | 0 | |||
IV.ZONE.HHZ. | 2020-08-04T21:16:22.37 | 3.0 | undecidable | manual | Sn | -1.29 | 0 | |||
IV.CMPR.HHZ. | 2020-08-04T21:16:11.71 | 3.0 | undecidable | manual | Sg | 1.27 | 0 | |||
MN.TIR.HHZ. | 2020-08-04T21:16:07.76 | 3.0 | negative | manual | Pn | 1.6 | 0 | |||
IV.ILOS.HHZ. | 2020-08-04T21:16:05.26 | 3.0 | positive | manual | Pg | 13.67 | 0 | |||
IV.SBPO.HNZ. | 2020-08-04T21:16:03.13 | 3.0 | undecidable | manual | Sg | 1.34 | 0 | |||
IV.MILN.HHZ. | 2020-08-04T21:15:47.25 | 3.0 | undecidable | manual | Pg | 6.45 | 0 | |||
ST.GAGG.HHZ. | 2020-08-04T21:15:44.41 | 3.0 | undecidable | manual | Pg | 4.73 | 0 | |||
IV.SARZ.HHZ. | 2020-08-04T21:15:44.14 | 3.0 | undecidable | manual | Pg | 6.99 | 0 | |||
GU.RORO.HHZ. | 2020-08-04T21:15:36.11 | 3.0 | negative | manual | Pn | -2.8 | 0 | |||
IV.ROSPO.HHZ. | 2020-08-04T21:15:34.68 | 3.0 | undecidable | manual | Sn | -4.47 | 0 | |||
IV.NDIM.HHZ. | 2020-08-04T21:15:30.40 | 3.0 | positive | manual | Pg | 5.58 | 0 | |||
IV.VULT.HHZ. | 2020-08-04T21:15:24.92 | 3.0 | negative | manual | Pn | -3.12 | 0 | |||
IV.FIR.HHZ. | 2020-08-04T21:15:07.43 | 3.0 | undecidable | manual | Pg | -2.69 | 0 | |||
IV.EL6.EHZ. | 2020-08-04T21:15:06.66 | 0.1 | undecidable | manual | S | 35 | 79.365 | 50 | 0.91 | 69 |
IV.LAV9.HHZ. | 2020-08-04T21:14:57.60 | 3.0 | negative | manual | P | -3.56 | 0 | |||
IV.NRCA.HHZ. | 2020-08-04T21:14:57.33 | 0.6 | undecidable | manual | S | 77 | 47.619 | 50 | 0.07 | 47 |
IV.TERO.HHZ. | 2020-08-04T21:14:56.55 | 3.0 | undecidable | manual | P | -0.18 | 0 | |||
IV.CESI.HHE. | 2020-08-04T21:14:55.52 | 0.1 | undecidable | manual | S | 45 | 41.4252 | 50 | -0.09 | 96 |
IV.MGAB.HHZ. | 2020-08-04T21:14:55.25 | 0.3 | undecidable | manual | S | 299 | 39.9267 | 50 | 0.04 | 73 |
IV.EL6.EHZ. | 2020-08-04T21:14:54.98 | 0.3 | undecidable | manual | P | 35 | 79.365 | 50 | -0.57 | 60 |
IV.ASSB.HHZ. | 2020-08-04T21:14:53.65 | 0.3 | undecidable | manual | S | 16 | 34.743 | 50 | -0.17 | 71 |
IV.NRCA.HHZ. | 2020-08-04T21:14:50.38 | 0.3 | undecidable | manual | P | 77 | 47.619 | 50 | -0.26 | 68 |
IV.ARRO.EHZ. | 2020-08-04T21:14:50.68 | 0.6 | undecidable | manual | S | 135 | 25.5522 | 109 | -0.31 | 47 |
IV.CESI.HHE. | 2020-08-04T21:14:49.75 | 0.1 | undecidable | manual | P | 45 | 41.4252 | 50 | 0.05 | 96 |
IV.MGAB.HHZ. | 2020-08-04T21:14:49.40 | 0.3 | undecidable | manual | P | 299 | 39.9267 | 50 | -0.06 | 72 |
IV.ASSB.HHZ. | 2020-08-04T21:14:48.30 | 0.3 | undecidable | manual | P | 16 | 34.743 | 50 | -0.36 | 69 |
IV.ARRO.EHZ. | 2020-08-04T21:14:47.12 | 0.1 | undecidable | manual | P | 135 | 25.5522 | 109 | 0.09 | 98 |
IV.CESX.HHZ. | 2020-08-04T21:14:47.71 | 0.6 | undecidable | manual | S | 166 | 15.1737 | 120 | 0.01 | 51 |
IV.CESX.HHZ. | 2020-08-04T21:14:45.31 | 0.1 | undecidable | manual | P | 166 | 15.1737 | 120 | 0.19 | 98 |
IV.MOMA.HHZ. | 2020-08-04T21:14:45.45 | 0.6 | undecidable | manual | S | 17 | 7.2927 | 141 | -0.14 | 50 |
IT.GNU.HGE. | 2020-08-04T21:14:45.43 | 0.1 | undecidable | manual | S | 17 | 7.2927 | 141 | -0.16 | 100 |
IV.MOMA.HHZ. | 2020-08-04T21:14:44.12 | 0.1 | undecidable | manual | P | 17 | 7.2927 | 141 | 0.21 | 99 |
IT.GNU.HGE. | 2020-08-04T21:14:44.09 | 0.1 | undecidable | manual | P | 17 | 7.2927 | 141 | 0.19 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MOMA.HHE. | ML:1.9 | 0.00143 | 1.08 | AML | other | m | 2020-08-04T21:14:45.67 |
IV.MOMA.HNE. | ML:1.9 | 0.00121 | 0.12 | AML | other | m | 2020-08-04T21:14:45.68 |
IV.MOMA.HHN. | ML:2.0 | 0.0015249999999999999 | 0.24 | AML | other | m | 2020-08-04T21:14:45.63 |
IV.MOMA.HNN. | ML:1.9 | 0.0013395 | 0.24 | AML | other | m | 2020-08-04T21:14:45.64 |
IV.ARRO.EHE. | ML:1.2 | 0.00008269999999999999 | 0.6 | AML | other | m | 2020-08-04T21:14:52.59 |
IV.ARRO.EHN. | ML:1.1 | 0.0000727 | 0.46 | AML | other | m | 2020-08-04T21:14:54.08 |
IV.MGAB.HHN. | ML:1.5 | 0.00009845000000000001 | 0.66 | AML | other | m | 2020-08-04T21:14:56.43 |
IV.MGAB.HHE. | ML:1.6 | 0.0001285 | 0.24 | AML | other | m | 2020-08-04T21:14:56.76 |
IV.NRCA.HHE. | ML:1.5 | 0.00008125 | 0.88 | AML | other | m | 2020-08-04T21:14:59.85 |
IV.NRCA.HHN. | ML:1.4 | 0.0000751 | 0.58 | AML | other | m | 2020-08-04T21:15:01.34 |