A magnitude ML 1.1 earthquake occured in region: 1 km NE Massa Martana (PG), on
and geographic coordinates (lat, lon) 42.7800, 12.5320 at 7 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 | 1 | 3770 | 3770 |
Giano dell'Umbria | PG | 7 | 3846 | 7616 |
Acquasparta | TR | 10 | 4778 | 12394 |
Todi | PG | 10 | 16851 | 29245 |
Castel Ritaldi | PG | 13 | 3278 | 32523 |
Gualdo Cattaneo | PG | 15 | 6155 | 38678 |
Montecastrilli | TR | 15 | 5022 | 43700 |
Collazzone | PG | 15 | 3473 | 47173 |
Fratta Todina | PG | 16 | 1839 | 49012 |
Montefalco | PG | 16 | 5679 | 54691 |
Monte Castello di Vibio | PG | 16 | 1567 | 56258 |
Avigliano Umbro | TR | 16 | 2558 | 58816 |
Spoleto | PG | 18 | 38218 | 97034 |
Bevagna | PG | 18 | 5081 | 102115 |
San Gemini | TR | 19 | 5018 | 107133 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2021-09-22 20:38:16 |
42.7803 | 12.5322 | 7 | 2021-09-22 20:45:22 |
Sala Sismica INGV-Roma | 95756831 |
Field | Value |
---|---|
Time (UTC) | 2021-09-22 20:38:16 ± 0.1 |
Latitude | 42.7803 ± 0.0045 |
Longitude | 12.5322 ± 0.0061 |
Depth (km) | 7 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 95756831 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 514 |
Semi-minor axis of confidence ellipse (meter) | 356 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 237 |
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) | 126 |
Number of associated phases, regardless of their use for origin computation | 39 |
Number of defining phases | 20 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.58276 |
Number of stations at which the event was observed | 27 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.2 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 95756831 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-22 20:45:22 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
CH.BERNI.HHZ. | 2021-09-22T20:40:05.89 | 3.0 | undecidable | manual | Sn | -4.07 | 0 | |||
RF.GEPF.HHZ. | 2021-09-22T20:39:58.66 | 3.0 | undecidable | manual | Sg | 2.17 | 0 | |||
GU.RNCA.HHZ. | 2021-09-22T20:39:50.43 | 3.0 | undecidable | manual | Sn | 3.05 | 0 | |||
IV.TREG.EHZ. | 2021-09-22T20:39:45.05 | 3.0 | undecidable | manual | Sg | 2.96 | 0 | |||
IV.VULT.HHZ. | 2021-09-22T20:39:45.04 | 3.0 | undecidable | manual | Sg | 2.13 | 0 | |||
IX.SCL3.EHZ.02 | 2021-09-22T20:39:43.98 | 3.0 | undecidable | manual | Sn | -1.79 | 0 | |||
IX.SRN3.HHZ.02 | 2021-09-22T20:39:42.43 | 3.0 | undecidable | manual | Sn | -6.35 | 0 | |||
IV.PCN.EHZ. | 2021-09-22T20:39:41.65 | 3.0 | undecidable | manual | Sn | -3.75 | 0 | |||
IV.MNTV.EHZ. | 2021-09-22T20:39:36.38 | 3.0 | undecidable | manual | Sn | -0.19 | 0 | |||
IV.MSRU.HHZ. | 2021-09-22T20:39:30.34 | 3.0 | undecidable | manual | Pn | -4.51 | 0 | |||
IV.ICAI.EHZ. | 2021-09-22T20:39:26.10 | 3.0 | undecidable | manual | Sn | -1.96 | 0 | |||
IV.IOCA.HHZ. | 2021-09-22T20:39:22.17 | 3.0 | undecidable | manual | Sn | -5.04 | 0 | |||
IV.PTRJ.HNZ. | 2021-09-22T20:39:19.34 | 3.0 | undecidable | manual | Sn | -2.03 | 0 | |||
IV.VOBA.EHZ. | 2021-09-22T20:39:18.24 | 3.0 | negative | manual | Pg | 8.94 | 0 | |||
GU.RNCA.HHZ. | 2021-09-22T20:39:11.49 | 3.0 | undecidable | manual | Pg | 3.38 | 0 | |||
IV.VENL.EHZ. | 2021-09-22T20:38:57.46 | 3.0 | negative | manual | Pn | -3.73 | 0 | |||
IV.PTRJ.HNZ. | 2021-09-22T20:38:56.58 | 3.0 | undecidable | manual | Pg | 3.08 | 0 | |||
IV.ARVD.HHZ. | 2021-09-22T20:38:42.17 | 3.0 | undecidable | manual | S | -3.81 | 0 | |||
IV.RIBO.EHZ.01 | 2021-09-22T20:38:39.52 | 3.0 | undecidable | manual | P | -1.43 | 0 | |||
IV.CSP1.EHZ. | 2021-09-22T20:38:37.70 | 0.6 | undecidable | manual | S | 57 | 64.6908 | 50 | 0.51 | 41 |
IV.FDMO.HHZ. | 2021-09-22T20:38:34.47 | 0.6 | undecidable | manual | S | 58 | 53.3022 | 50 | 0.3 | 44 |
IV.MGAB.HHZ. | 2021-09-22T20:38:30.08 | 0.6 | undecidable | manual | S | 293 | 37.1295 | 101 | 0.34 | 45 |
IV.CESI.HHZ. | 2021-09-22T20:38:30.08 | 0.6 | undecidable | manual | S | 50 | 39.2274 | 50 | -0.33 | 45 |
IV.CSP1.EHZ. | 2021-09-22T20:38:28.40 | 0.6 | negative | manual | P | 57 | 64.6908 | 50 | -0.09 | 45 |
IV.GAVE.HNE. | 2021-09-22T20:38:27.93 | 0.6 | undecidable | manual | S | 108 | 31.0467 | 103 | 0.27 | 46 |
IV.ARRO.EHZ. | 2021-09-22T20:38:27.60 | 0.6 | undecidable | manual | S | 139 | 29.3484 | 104 | 0.52 | 43 |
IV.ASSB.HHZ. | 2021-09-22T20:38:27.76 | 0.6 | undecidable | manual | S | 19 | 30.8469 | 103 | 0.17 | 47 |
IV.FDMO.HHZ. | 2021-09-22T20:38:26.63 | 1.0 | undecidable | manual | P | 58 | 53.3022 | 50 | -0.11 | 23 |
IV.CESI.HHZ. | 2021-09-22T20:38:24.08 | 0.6 | undecidable | manual | P | 50 | 39.2274 | 50 | -0.49 | 43 |
IV.MGAB.HHZ. | 2021-09-22T20:38:24.16 | 0.6 | negative | manual | P | 293 | 37.1295 | 101 | -0.03 | 48 |
IV.CESX.HHZ. | 2021-09-22T20:38:23.67 | 0.6 | undecidable | manual | S | 167 | 19.5693 | 110 | -0.16 | 48 |
IV.ASSB.HHZ. | 2021-09-22T20:38:22.82 | 0.1 | undecidable | manual | P | 19 | 30.8469 | 103 | -0.12 | 95 |
IV.GAVE.HNE. | 2021-09-22T20:38:22.70 | 0.1 | undecidable | manual | P | 108 | 31.0467 | 103 | -0.28 | 92 |
IV.ARRO.EHZ. | 2021-09-22T20:38:22.65 | 1.0 | negative | manual | P | 139 | 29.3484 | 104 | 0 | 24 |
IV.CESX.HHZ. | 2021-09-22T20:38:20.49 | 1.0 | undecidable | manual | P | 167 | 19.5693 | 110 | -0.28 | 23 |
IT.GNU.HGE. | 2021-09-22T20:38:19.53 | 0.6 | undecidable | manual | S | 50 | 3.996 | 150 | 0.09 | 50 |
IV.MOMA.HHZ. | 2021-09-22T20:38:19.18 | 0.6 | undecidable | manual | S | 50 | 3.996 | 150 | -0.26 | 48 |
IT.GNU.HGE. | 2021-09-22T20:38:18.33 | 0.1 | undecidable | manual | P | 50 | 3.996 | 150 | 0.09 | 100 |
IV.MOMA.HHZ. | 2021-09-22T20:38:18.25 | 1.0 | undecidable | manual | P | 50 | 3.996 | 150 | 0.01 | 25 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.CESX.HHN. | ML:1.1 | 0.0001075 | 0.48 | AML | other | m | 2021-09-22T20:38:25.01 |
IV.CESX.HHE. | ML:1.1 | 0.00010485 | 0.48 | AML | other | m | 2021-09-22T20:38:25.03 |
IV.ARRO.EHE. | ML:0.8 | 0.00003575 | 1.16 | AML | other | m | 2021-09-22T20:38:28.94 |
IV.ASSB.HHN. | ML:0.9 | 0.00003949999999999999 | 0.34 | AML | other | m | 2021-09-22T20:38:28.31 |
IV.ARRO.EHN. | ML:0.8 | 0.0000344 | 0.66 | AML | other | m | 2021-09-22T20:38:29.81 |
IV.ASSB.HHE. | ML:1.0 | 0.00004295 | 1 | AML | other | m | 2021-09-22T20:38:30.31 |
IV.CESI.HHE. | ML:1.0 | 0.0000331 | 0.58 | AML | other | m | 2021-09-22T20:38:30.32 |
IV.MGAB.HHN. | ML:1.2 | 0.00006604999999999999 | 0.46 | AML | other | m | 2021-09-22T20:38:31.96 |
IV.MGAB.HHE. | ML:1.3 | 0.0000788 | 0.42 | AML | other | m | 2021-09-22T20:38:32.34 |
IV.CESI.HHN. | ML:1.2 | 0.000056999999999999996 | 0.2 | AML | other | m | 2021-09-22T20:38:32.48 |
IV.FDMO.HHN. | ML:1.2 | 0.00003305 | 0.14 | AML | other | m | 2021-09-22T20:38:34.90 |
IV.FDMO.HHE. | ML:1.0 | 0.000025 | 0.42 | AML | other | m | 2021-09-22T20:38:35.74 |
IV.CSP1.EHE. | ML:1.5 | 0.000054900485 | 0.7168 | AML | other | m | 2021-09-22T20:38:44.18 |
IV.CSP1.EHN. | ML:1.4 | 0.000046801669999999994 | 0.2048 | AML | other | m | 2021-09-22T20:38:37.99 |