A magnitude ML 0.9 earthquake occured in region: 4 km SW Valfabbrica (PG), on
and geographic coordinates (lat, lon) 43.1330, 12.5620 at 8 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 |
---|---|---|---|---|
Valfabbrica | PG | 4 | 3389 | 3389 |
Bastia Umbra | PG | 7 | 21874 | 25263 |
Assisi | PG | 8 | 28299 | 53562 |
Perugia | PG | 14 | 166134 | 219696 |
Bettona | PG | 15 | 4367 | 224063 |
Cannara | PG | 15 | 4305 | 228368 |
Torgiano | PG | 16 | 6725 | 235093 |
Valtopina | PG | 18 | 1398 | 236491 |
Spello | PG | 18 | 8645 | 245136 |
Nocera Umbra | PG | 19 | 5839 | 250975 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-04-08 21:37:38 |
43.1333 | 12.5622 | 9 | 2021-04-08 21:45:15 |
Sala Sismica INGV-Roma | 88922861 |
Field | Value |
---|---|
Time (UTC) | 2021-04-08 21:37:38 ± 0.08 |
Latitude | 43.1333 ± 0.0045 |
Longitude | 12.5622 ± 0.0062 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 88922861 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 549 |
Semi-minor axis of confidence ellipse (meter) | 302 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 39 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 550.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 127 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 18 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.23 |
Epicentral distance of station closest to the epicenter (degree) | 0.07644 |
Epicentral distance of station farthest from the epicenter (degree) | 0.39570 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.4 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 88922861 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-08 21:45:15 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.FDMO.HHZ. | 2021-04-08T21:37:53.38 | 0.3 | undecidable | manual | S | 104 | 43.9227 | 50 | 0.01 | 69 |
IV.CESI.HHZ. | 2021-04-08T21:37:49.76 | 0.3 | undecidable | manual | S | 117 | 31.2465 | 105 | -0.08 | 71 |
IV.ATVA.EHZ. | 2021-04-08T21:37:48.08 | 0.3 | undecidable | manual | S | 306 | 27.5502 | 107 | -0.55 | 64 |
IV.ATLO.EHZ. | 2021-04-08T21:37:47.12 | 0.3 | undecidable | manual | S | 328 | 23.754 | 110 | -0.24 | 70 |
IV.FOSV.EHZ. | 2021-04-08T21:37:47.52 | 0.3 | undecidable | manual | S | 42 | 24.0537 | 109 | 0.05 | 72 |
IV.FDMO.HHZ. | 2021-04-08T21:37:46.88 | 0.3 | undecidable | manual | P | 104 | 43.9227 | 50 | -0.25 | 68 |
IV.ATMI.HHE. | 2021-04-08T21:37:45.85 | 0.3 | undecidable | manual | P | 313 | 32.5452 | 105 | 0.49 | 64 |
IV.MOMA.HNN. | 2021-04-08T21:37:45.88 | 0.3 | undecidable | manual | P | 179 | 36.5412 | 50 | -0.12 | 71 |
IV.ATVA.EHZ. | 2021-04-08T21:37:44.90 | 0.3 | undecidable | manual | P | 306 | 27.5502 | 107 | 0.5 | 66 |
IV.ASSB.HHZ. | 2021-04-08T21:37:44.02 | 0.3 | undecidable | manual | S | 142 | 12.7761 | 124 | 0.1 | 74 |
IV.CESI.HHZ. | 2021-04-08T21:37:44.87 | 0.3 | undecidable | manual | P | 117 | 31.2465 | 105 | -0.23 | 69 |
IV.MURB.HHZ. | 2021-04-08T21:37:44.71 | 0.3 | undecidable | manual | S | 348 | 14.6742 | 120 | 0.21 | 72 |
IV.FOSV.EHZ. | 2021-04-08T21:37:43.67 | 0.3 | undecidable | manual | P | 42 | 24.0537 | 109 | -0.06 | 73 |
IV.ATLO.EHZ. | 2021-04-08T21:37:43.50 | 0.3 | undecidable | manual | P | 328 | 23.754 | 110 | -0.17 | 71 |
IV.ATCC.EHZ. | 2021-04-08T21:37:42.73 | 0.3 | undecidable | manual | S | 48 | 8.4804 | 135 | -0.06 | 74 |
IV.MURB.HHZ. | 2021-04-08T21:37:42.08 | 0.1 | undecidable | manual | P | 348 | 14.6742 | 120 | 0.06 | 98 |
IV.ATCC.EHZ. | 2021-04-08T21:37:41.06 | 0.1 | undecidable | manual | P | 48 | 8.4804 | 135 | 0.04 | 100 |
IV.ASSB.HHZ. | 2021-04-08T21:37:41.83 | 0.1 | undecidable | manual | P | 142 | 12.7761 | 124 | 0.15 | 97 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.ATCC.EHN. | ML:1.2 | 0.00023625025 | 0.1792 | AML | other | m | 2021-04-08T21:37:43.30 |
IV.ATCC.EHE. | ML:1.2 | 0.00026609295 | 0.2688 | AML | other | m | 2021-04-08T21:37:43.96 |
IV.ASSB.HHE. | ML:0.9 | 0.00009245000000000001 | 0.1 | AML | other | m | 2021-04-08T21:37:44.53 |
IV.ASSB.HHN. | ML:1.0 | 0.00010345836 | 0.1408 | AML | other | m | 2021-04-08T21:37:44.60 |
IV.MURB.HHE. | ML:1.7 | 0.00049 | 1.7 | AML | other | m | 2021-04-08T21:37:45.11 |
IV.MURB.HHN. | ML:1.5 | 0.00030650725 | 0.2304 | AML | other | m | 2021-04-08T21:37:46.04 |
IV.MURB.HNE. | ML:1.6 | 0.00041455585 | 0.2944 | AML | other | m | 2021-04-08T21:37:45.11 |
IV.MURB.HNN. | ML:1.4 | 0.00029200285000000005 | 0.1664 | AML | other | m | 2021-04-08T21:37:45.19 |
IV.FOSV.EHE. | ML:0.2 | 0.0000102358395 | 0.1536 | AML | other | m | 2021-04-08T21:37:48.01 |
IV.FOSV.EHN. | ML:0.4 | 0.0000164843155 | 0.2432 | AML | other | m | 2021-04-08T21:37:48.58 |
IV.CESI.HHE. | ML:0.5 | 0.00001548913 | 0.0768 | AML | other | m | 2021-04-08T21:37:50.66 |
IV.CESI.HHN. | ML:0.5 | 0.00001448114 | 0.1536 | AML | other | m | 2021-04-08T21:37:51.72 |
IV.FDMO.HHE. | ML:0.5 | 0.000010335162 | 0.2048 | AML | other | m | 2021-04-08T21:37:54.34 |
IV.FDMO.HHN. | ML:0.7 | 0.0000149129525 | 0.2176 | AML | other | m | 2021-04-08T21:37:53.47 |