A magnitude ML 1.3 earthquake occured in region: 5 km NE Spoleto (PG), on
and geographic coordinates (lat, lon) 42.7760, 12.7560 at 10 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 |
---|---|---|---|---|
Spoleto | PG | 5 | 38218 | 38218 |
Campello sul Clitunno | PG | 5 | 2442 | 40660 |
Sant'Anatolia di Narco | PG | 8 | 564 | 41224 |
Castel Ritaldi | PG | 9 | 3278 | 44502 |
Vallo di Nera | PG | 9 | 364 | 44866 |
Scheggino | PG | 9 | 461 | 45327 |
Trevi | PG | 11 | 8469 | 53796 |
Cerreto di Spoleto | PG | 14 | 1075 | 54871 |
Montefalco | PG | 16 | 5679 | 60550 |
Giano dell'Umbria | PG | 16 | 3846 | 64396 |
Poggiodomo | PG | 16 | 117 | 64513 |
Ferentillo | TR | 17 | 1913 | 66426 |
Sellano | PG | 19 | 1079 | 67505 |
Massa Martana | PG | 19 | 3770 | 71275 |
Acquasparta | TR | 20 | 4778 | 76053 |
Montefranco | TR | 20 | 1276 | 77329 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.3 | 2021-09-21 16:34:29 |
42.7763 | 12.7565 | 10 | 2022-03-30 13:04:25 |
Bollettino Sismico Italiano INGV | 99281761 |
Reviewed Rev100 |
ML 1.4 | 2021-09-21 16:34:29 |
42.777 | 12.7592 | 10 | 2021-09-21 16:43:29 |
Sala Sismica INGV-Roma | 95709071 |
Field | Value |
---|---|
Time (UTC) | 2021-09-21 16:34:29 ± 0.06 |
Latitude | 42.7763 ± 0.0045 |
Longitude | 12.7565 ± 0.0061 |
Depth (km) | 10 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 99281761 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 552 |
Semi-minor axis of confidence ellipse (meter) | 350 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 231 |
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) | 87 |
Number of associated phases, regardless of their use for origin computation | 22 |
Number of defining phases | 22 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.21 |
Epicentral distance of station closest to the epicenter (degree) | 0.13130 |
Epicentral distance of station farthest from the epicenter (degree) | 0.45506 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 1.4 |
Uncertainty | 0.5 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 95709071 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-21 16:43:29 |
Field | Value |
---|---|
Value | 1.3 |
Uncertainty | 0.2 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 99281761 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2022-01-03 12:23:27 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SMA1.EHZ. | 2021-09-21T16:34:46.34 | 0.3 | undecidable | manual | S | 109 | 49.9167 | 50 | 0.75 | 60 |
IV.CSP1.EHZ. | 2021-09-21T16:34:46.02 | 0.3 | undecidable | manual | S | 46 | 50.5161 | 50 | 0.26 | 69 |
IV.RM33.EHZ. | 2021-09-21T16:34:45.06 | 0.3 | undecidable | manual | S | 128 | 47.7189 | 50 | 0.05 | 73 |
IV.MML1.EHZ. | 2021-09-21T16:34:43.35 | 0.3 | undecidable | manual | S | 25 | 41.3253 | 50 | 0.05 | 73 |
IV.ASSB.HHZ. | 2021-09-21T16:34:40.52 | 0.3 | undecidable | manual | S | 345 | 30.5472 | 50 | 0.08 | 75 |
IV.LNSS.HHZ. | 2021-09-21T16:34:40.02 | 0.3 | undecidable | manual | S | 130 | 30.1476 | 50 | -0.29 | 71 |
IV.NRCA.HHZ. | 2021-09-21T16:34:40.13 | 0.3 | undecidable | manual | S | 78 | 29.8479 | 50 | -0.1 | 74 |
IV.CESI.HHZ. | 2021-09-21T16:34:39.55 | 0.3 | undecidable | manual | S | 25 | 28.0497 | 50 | -0.22 | 73 |
IV.CSP1.EHZ. | 2021-09-21T16:34:38.89 | 0.3 | undecidable | manual | P | 46 | 50.5161 | 50 | 0 | 73 |
IV.RM33.EHZ. | 2021-09-21T16:34:38.31 | 0.1 | undecidable | manual | P | 128 | 47.7189 | 50 | -0.16 | 95 |
IV.CESX.HHZ. | 2021-09-21T16:34:38.06 | 0.3 | undecidable | manual | S | 217 | 23.1546 | 113 | -0.18 | 74 |
IV.SMA1.EHZ. | 2021-09-21T16:34:38.87 | 0.3 | undecidable | manual | P | 109 | 49.9167 | 50 | 0.07 | 72 |
IV.MML1.EHZ. | 2021-09-21T16:34:37.26 | 1.0 | undecidable | manual | P | 25 | 41.3253 | 50 | -0.21 | 24 |
IV.NRCA.HHZ. | 2021-09-21T16:34:35.50 | 0.1 | undecidable | manual | P | 78 | 29.8479 | 50 | -0.2 | 97 |
IV.GAVE.EHE. | 2021-09-21T16:34:35.53 | 0.3 | undecidable | manual | S | 130 | 14.5743 | 124 | -0.07 | 77 |
IV.CESX.HHZ. | 2021-09-21T16:34:35.04 | 0.3 | undecidable | manual | P | 217 | 23.1546 | 113 | 0.49 | 69 |
IV.ASSB.HHZ. | 2021-09-21T16:34:35.82 | 0.3 | undecidable | manual | P | 345 | 30.5472 | 50 | 0 | 76 |
IV.CESI.HHZ. | 2021-09-21T16:34:35.34 | 0.3 | undecidable | manual | P | 25 | 28.0497 | 50 | -0.1 | 75 |
IV.MOMA.HHZ. | 2021-09-21T16:34:35.68 | 0.3 | undecidable | manual | S | 281 | 15.4734 | 122 | -0.18 | 75 |
IV.LNSS.HHZ. | 2021-09-21T16:34:35.52 | 0.3 | undecidable | manual | P | 130 | 30.1476 | 50 | -0.23 | 72 |
IV.MOMA.HHZ. | 2021-09-21T16:34:33.35 | 0.1 | undecidable | manual | P | 281 | 15.4734 | 122 | 0.18 | 100 |
IV.GAVE.EHE. | 2021-09-21T16:34:33.09 | 0.3 | undecidable | manual | P | 130 | 14.5743 | 124 | 0.06 | 77 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MOMA.HHN. | ML:1.4 | 0.0002125 | 0.24 | AML | other | m | 2021-09-21T16:34:36.29 |
IV.MOMA.HHE. | ML:1.6 | 0.000375 | 0.2 | AML | other | m | 2021-09-21T16:34:36.41 |
IV.CESI.HHN. | ML:1.4 | 0.000123 | 1.82 | AML | other | m | 2021-09-21T16:34:39.93 |
IV.CESI.HHE. | ML:1.1 | 0.00006085 | 0.18 | AML | other | m | 2021-09-21T16:34:39.93 |
IV.LNSS.HHE. | ML:1.4 | 0.0001235 | 0.12 | AML | other | m | 2021-09-21T16:34:40.15 |
IV.NRCA.HHN. | ML:1.1 | 0.0000632 | 0.08 | AML | other | m | 2021-09-21T16:34:40.69 |
IV.LNSS.HHN. | ML:1.4 | 0.00011399999999999999 | 1.22 | AML | other | m | 2021-09-21T16:34:40.77 |
IV.ASSB.HHN. | ML:1.1 | 0.00005425 | 1.48 | AML | other | m | 2021-09-21T16:34:41.76 |
IV.ASSB.HHE. | ML:1.0 | 0.0000518 | 0.68 | AML | other | m | 2021-09-21T16:34:42.44 |
IV.NRCA.HHE. | ML:1.2 | 0.00008460000000000001 | 0.72 | AML | other | m | 2021-09-21T16:34:42.86 |
IV.MOMA.HNE. | ML:1.6 | 0.00033794755 | 0.2048 | AML | other | m | 2021-09-21T16:34:36.41 |
IV.LNSS.HNE. | ML:1.6 | 0.00018576205 | 0.8576 | AML | other | m | 2021-09-21T16:34:40.09 |
IV.MML1.EHN. | ML:1.0 | 0.000032146575 | 0.1408 | AML | other | m | 2021-09-21T16:34:43.87 |
IV.MML1.EHE. | ML:0.9 | 0.000026572500000000004 | 0.1152 | AML | other | m | 2021-09-21T16:34:43.83 |
IV.RM33.EHE. | ML:1.0 | 0.000022999321 | 0.1792 | AML | other | m | 2021-09-21T16:34:46.89 |
IV.RM33.EHN. | ML:1.0 | 0.00002368181 | 0.2176 | AML | other | m | 2021-09-21T16:34:46.07 |
IV.SMA1.EHE. | ML:1.0 | 0.00002362251 | 0.32 | AML | other | m | 2021-09-21T16:34:47.17 |
IV.SMA1.EHN. | ML:1.0 | 0.00002638018 | 0.3072 | AML | other | m | 2021-09-21T16:34:47.83 |
IV.CSP1.EHE. | ML:1.6 | 0.00011645473 | 0.2432 | AML | other | m | 2021-09-21T16:34:46.68 |
IV.CSP1.EHN. | ML:1.4 | 0.00006862290999999999 | 0.3584 | AML | other | m | 2021-09-21T16:34:46.34 |