A magnitude ML 1.6 earthquake occured in region: 1 km W Polino (TR), on
and geographic coordinates (lat, lon) 42.5850, 12.8370 at 8 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 |
---|---|---|---|---|
Polino | TR | 1 | 233 | 233 |
Arrone | TR | 5 | 2763 | 2996 |
Ferentillo | TR | 6 | 1913 | 4909 |
Montefranco | TR | 6 | 1276 | 6185 |
Morro Reatino | RI | 7 | 373 | 6558 |
Labro | RI | 7 | 374 | 6932 |
Rivodutri | RI | 8 | 1253 | 8185 |
Poggio Bustone | RI | 10 | 2055 | 10240 |
Colli sul Velino | RI | 11 | 533 | 10773 |
Leonessa | RI | 11 | 2435 | 13208 |
Monteleone di Spoleto | PG | 12 | 599 | 13807 |
Cantalice | RI | 14 | 2755 | 16562 |
Scheggino | PG | 14 | 461 | 17023 |
Greccio | RI | 16 | 1558 | 18581 |
Terni | TR | 16 | 111501 | 130082 |
Poggiodomo | PG | 16 | 117 | 130199 |
Sant'Anatolia di Narco | PG | 17 | 564 | 130763 |
Stroncone | TR | 17 | 4917 | 135680 |
Spoleto | PG | 19 | 38218 | 173898 |
Rieti | RI | 20 | 47698 | 221596 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.6 | 2021-04-23 04:56:13 |
42.5852 | 12.8368 | 8 | 2021-07-12 16:55:14 |
Bollettino Sismico Italiano INGV | 90929721 |
Reviewed Rev100 |
ML 1.6 | 2021-04-23 04:56:13 |
42.5838 | 12.8373 | 8 | 2021-04-23 05:00:27 |
Sala Sismica INGV-Roma | 89385941 |
Field | Value |
---|---|
Time (UTC) | 2021-04-23 04:56:13 ± 0.08 |
Latitude | 42.5852 ± 0.0054 |
Longitude | 12.8368 ± 0.0049 |
Depth (km) | 8 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 90929721 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 575 |
Semi-minor axis of confidence ellipse (meter) | 319 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 199 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 580.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 110 |
Number of associated phases, regardless of their use for origin computation | 32 |
Number of defining phases | 32 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.27 |
Epicentral distance of station closest to the epicenter (degree) | 0.05306 |
Epicentral distance of station farthest from the epicenter (degree) | 0.57377 |
Number of stations at which the event was observed | 17 |
Number of stations from which data was used for origin computation | 17 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.2 |
Num. used stations | 27 |
Type of magnitude | ML |
Reference to an origin | 90929721 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-06-08 09:44:35 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.2 |
Num. used stations | 24 |
Type of magnitude | ML |
Reference to an origin | 89385941 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-23 05:00:27 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MMO1.EHN. | 2021-04-23T04:56:31.01 | 0.6 | undecidable | manual | S | 49 | 53.0025 | 50 | 0.43 | 42 |
IV.ASSB.HHZ. | 2021-04-23T04:56:30.90 | 0.1 | undecidable | manual | S | 344 | 52.8027 | 50 | 0.37 | 86 |
IV.FDMO.HHZ. | 2021-04-23T04:56:30.92 | 0.1 | undecidable | manual | S | 22 | 54.1014 | 50 | 0.05 | 92 |
IV.MTRA.EHE. | 2021-04-23T04:56:29.57 | 0.6 | undecidable | manual | S | 67 | 49.4172 | 50 | -0.07 | 46 |
IV.CESI.HHZ. | 2021-04-23T04:56:29.06 | 0.3 | undecidable | manual | S | 7 | 46.9197 | 50 | 0.11 | 69 |
IV.MC2.EHZ. | 2021-04-23T04:56:29.27 | 0.1 | undecidable | manual | S | 38 | 46.2204 | 50 | 0.5 | 84 |
IV.SMA1.EHZ. | 2021-04-23T04:56:27.71 | 0.1 | undecidable | manual | S | 83 | 41.0256 | 50 | 0.33 | 88 |
IV.T1299.HNN. | 2021-04-23T04:56:26.43 | 0.6 | undecidable | manual | S | 81 | 36.741 | 50 | 0.18 | 46 |
IV.NRCA.HHZ. | 2021-04-23T04:56:25.50 | 0.1 | undecidable | manual | S | 39 | 35.6421 | 50 | -0.45 | 87 |
IV.MOMA.HHZ. | 2021-04-23T04:56:24.89 | 0.1 | undecidable | manual | S | 318 | 32.5452 | 104 | -0.12 | 94 |
IV.RM33.EHZ. | 2021-04-23T04:56:24.69 | 0.1 | undecidable | manual | S | 105 | 31.9458 | 104 | -0.12 | 94 |
IV.CSP1.EHZ. | 2021-04-23T04:56:24.83 | 1.0 | positive | manual | P | 28 | 63.6918 | 50 | -0.12 | 22 |
IV.ASSB.HHZ. | 2021-04-23T04:56:23.12 | 0.1 | positive | manual | P | 344 | 52.8027 | 50 | -0.15 | 90 |
IV.FDMO.HHZ. | 2021-04-23T04:56:23.16 | 0.3 | negative | manual | P | 22 | 54.1014 | 50 | -0.3 | 65 |
IV.MTRA.EHE. | 2021-04-23T04:56:22.69 | 0.3 | undecidable | manual | P | 67 | 49.4172 | 50 | -0.06 | 69 |
IV.CESI.HHZ. | 2021-04-23T04:56:22.01 | 0.1 | negative | manual | P | 7 | 46.9197 | 50 | -0.35 | 87 |
IV.MMO1.EHN. | 2021-04-23T04:56:22.91 | 0.1 | undecidable | manual | P | 49 | 53.0025 | 50 | -0.39 | 85 |
IV.SRES.HHN. | 2021-04-23T04:56:22.61 | 0.6 | undecidable | manual | P | 215 | 47.0196 | 50 | 0.23 | 45 |
IV.SMA1.EHZ. | 2021-04-23T04:56:21.60 | 0.6 | negative | manual | P | 83 | 41.0256 | 50 | 0.15 | 46 |
IV.MC2.EHZ. | 2021-04-23T04:56:21.95 | 1.0 | positive | manual | P | 38 | 46.2204 | 50 | -0.3 | 22 |
IV.CESX.HHZ. | 2021-04-23T04:56:21.60 | 0.1 | undecidable | manual | S | 277 | 20.5683 | 112 | 0.55 | 87 |
IV.NRCA.HHZ. | 2021-04-23T04:56:20.20 | 0.1 | negative | manual | P | 39 | 35.6421 | 50 | -0.43 | 87 |
IV.T1299.HNN. | 2021-04-23T04:56:20.59 | 0.1 | undecidable | manual | P | 81 | 36.741 | 50 | -0.21 | 91 |
IV.LNSS.HHZ. | 2021-04-23T04:56:20.13 | 0.1 | undecidable | manual | S | 83 | 16.7721 | 116 | 0.31 | 93 |
IV.MOMA.HHZ. | 2021-04-23T04:56:19.60 | 1.0 | undecidable | manual | P | 318 | 32.5452 | 104 | -0.49 | 22 |
IV.RM33.EHZ. | 2021-04-23T04:56:19.87 | 0.6 | positive | manual | P | 105 | 31.9458 | 104 | -0.1 | 47 |
IV.CESX.HHZ. | 2021-04-23T04:56:18.21 | 0.6 | positive | manual | P | 277 | 20.5683 | 112 | 0.42 | 45 |
IV.GAVE.EHZ. | 2021-04-23T04:56:18.72 | 0.1 | undecidable | manual | S | 21 | 12.7761 | 123 | 0.1 | 97 |
IV.LNSS.HHZ. | 2021-04-23T04:56:17.39 | 0.3 | positive | manual | P | 83 | 16.7721 | 116 | 0.31 | 70 |
IV.ARRO.EHZ. | 2021-04-23T04:56:16.50 | 0.1 | undecidable | manual | S | 264 | 5.8941 | 145 | -0.36 | 94 |
IV.GAVE.EHZ. | 2021-04-23T04:56:16.38 | 0.3 | undecidable | manual | P | 21 | 12.7761 | 123 | -0.01 | 74 |
IV.ARRO.EHZ. | 2021-04-23T04:56:15.34 | 0.1 | positive | manual | P | 264 | 5.8941 | 145 | -0.03 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.ARRO.EHN. | ML:2.0 | 0.00185 | 0.16 | AML | other | m | 2021-04-23T04:56:16.73 |
IV.ARRO.EHE. | ML:1.8 | 0.0012126315 | 0.16 | AML | other | m | 2021-04-23T04:56:16.97 |
IV.GAVE.HNN. | ML:1.5 | 0.00033541695 | 0.2592 | AML | other | m | 2021-04-23T04:56:19.53 |
IV.GAVE.HNE. | ML:2.1 | 0.00135774755 | 0.16 | AML | other | m | 2021-04-23T04:56:19.16 |
IV.GAVE.EHE. | ML:2.0 | 0.0013191481499999999 | 0.2592 | AML | other | m | 2021-04-23T04:56:19.17 |
IV.GAVE.EHN. | ML:2.0 | 0.0010695000000000001 | 1.82 | AML | other | m | 2021-04-23T04:56:19.03 |
IV.LNSS.HHE. | ML:1.8 | 0.0006245000000000001 | 0.26 | AML | other | m | 2021-04-23T04:56:20.45 |
IV.LNSS.HNE. | ML:1.8 | 0.0005835 | 0.26 | AML | other | m | 2021-04-23T04:56:20.46 |
IV.LNSS.HHN. | ML:1.8 | 0.00061229535 | 0.24 | AML | other | m | 2021-04-23T04:56:21.02 |
IV.LNSS.HNN. | ML:1.9 | 0.0007685 | 0.4 | AML | other | m | 2021-04-23T04:56:20.44 |
IV.CESX.HHN. | ML:1.3 | 0.00015218310000000002 | 0.3008 | AML | other | m | 2021-04-23T04:56:23.88 |
IV.CESX.HHE. | ML:1.4 | 0.000180771165 | 0.3584 | AML | other | m | 2021-04-23T04:56:24.05 |
IV.RM33.EHN. | ML:1.4 | 0.0001167 | 1.08 | AML | other | m | 2021-04-23T04:56:24.93 |
IV.MOMA.HHN. | ML:1.5 | 0.0001545 | 0.22 | AML | other | m | 2021-04-23T04:56:25.51 |
IV.RM33.EHE. | ML:1.4 | 0.00011088415 | 0.1216 | AML | other | m | 2021-04-23T04:56:25.45 |
IV.NRCA.HHE. | ML:1.6 | 0.000144 | 0.16 | AML | other | m | 2021-04-23T04:56:26.27 |
IV.NRCA.HHN. | ML:1.3 | 0.00008550245000000001 | 0.16 | AML | other | m | 2021-04-23T04:56:26.94 |
IV.MOMA.HHE. | ML:1.5 | 0.00013700000000000002 | 0.26 | AML | other | m | 2021-04-23T04:56:27.16 |
IV.ASSB.HHN. | ML:1.5 | 0.00007725 | 0.2 | AML | other | m | 2021-04-23T04:56:31.10 |
IV.FDMO.HHN. | ML:1.6 | 0.00009695000000000001 | 0.16 | AML | other | m | 2021-04-23T04:56:32.26 |
IV.FDMO.HHE. | ML:1.5 | 0.00008130000000000001 | 0.72 | AML | other | m | 2021-04-23T04:56:32.56 |
IV.ASSB.HHE. | ML:1.5 | 0.0000863 | 1.64 | AML | other | m | 2021-04-23T04:56:33.90 |
IV.MOMA.HNN. | ML:1.6 | 0.0001675847 | 0.2208 | AML | other | m | 2021-04-23T04:56:25.61 |
IV.MOMA.HNE. | ML:1.5 | 0.00013840579 | 0.2304 | AML | other | m | 2021-04-23T04:56:28.82 |
IV.RM33.HNE. | ML:1.6 | 0.00018418762 | 0.4 | AML | other | m | 2021-04-23T04:56:30.03 |
IV.RM33.HNN. | ML:1.5 | 0.00013564436000000003 | 0.272 | AML | other | m | 2021-04-23T04:56:27.48 |
IV.NRCA.HNE. | ML:1.6 | 0.000157761495 | 0.1504 | AML | other | m | 2021-04-23T04:56:26.27 |