A magnitude ML 0.9 earthquake occured in region: 8 km W Arquata del Tronto (AP), on
and geographic coordinates (lat, lon) 42.7700, 13.1950 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 |
---|---|---|---|---|
Arquata del Tronto | AP | 8 | 1178 | 1178 |
Norcia | PG | 9 | 4957 | 6135 |
Accumoli | RI | 9 | 667 | 6802 |
Montegallo | AP | 14 | 523 | 7325 |
Castelsantangelo sul Nera | MC | 14 | 281 | 7606 |
Cascia | PG | 16 | 3217 | 10823 |
Cittareale | RI | 17 | 482 | 11305 |
Amatrice | RI | 17 | 2657 | 13962 |
Acquasanta Terme | AP | 18 | 2916 | 16878 |
Preci | PG | 18 | 724 | 17602 |
Montemonaco | AP | 18 | 604 | 18206 |
Visso | MC | 20 | 1107 | 19313 |
Ussita | MC | 20 | 444 | 19757 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.9 | 2021-05-03 17:09:50 |
42.7698 | 13.1948 | 10 | 2021-12-29 11:12:01 |
Bollettino Sismico Italiano INGV | 90512411 |
Reviewed Rev100 |
ML 0.8 | 2021-05-03 17:09:50 |
42.7702 | 13.1968 | 11 | 2021-05-03 17:15:18 |
Sala Sismica INGV-Roma | 89746611 |
Field | Value |
---|---|
Time (UTC) | 2021-05-03 17:09:50 ± 0.05 |
Latitude | 42.7698 ± 0.0036 |
Longitude | 13.1948 ± 0.0049 |
Depth (km) | 10 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 90512411 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 401 |
Semi-minor axis of confidence ellipse (meter) | 319 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 54 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 400.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 74 |
Number of associated phases, regardless of their use for origin computation | 17 |
Number of defining phases | 17 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.19 |
Epicentral distance of station closest to the epicenter (degree) | 0.08723 |
Epicentral distance of station farthest from the epicenter (degree) | 0.33455 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.3 |
Num. used stations | 16 |
Type of magnitude | ML |
Reference to an origin | 90512411 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-05-26 15:44:08 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.4 |
Num. used stations | 11 |
Type of magnitude | ML |
Reference to an origin | 89746611 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-05-03 17:15:18 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.TERO.HHZ. | 2021-05-03T17:10:02.90 | 0.6 | undecidable | manual | S | 116 | 37.1295 | 50 | -0.22 | 46 |
IV.FDMO.HHZ. | 2021-05-03T17:10:01.50 | 0.3 | undecidable | manual | S | 344 | 30.8469 | 50 | 0.05 | 72 |
IV.GAVE.EHZ. | 2021-05-03T17:09:59.95 | 0.1 | undecidable | manual | S | 251 | 25.9518 | 50 | -0.2 | 94 |
IV.TERO.HHZ. | 2021-05-03T17:09:58.07 | 0.1 | undecidable | manual | P | 116 | 37.1295 | 50 | 0.24 | 91 |
IV.MMO1.EHZ. | 2021-05-03T17:09:57.63 | 0.3 | undecidable | manual | S | 37 | 17.9709 | 120 | -0.14 | 72 |
IV.MTRA.EHZ. | 2021-05-03T17:09:57.02 | 0.1 | undecidable | manual | S | 95 | 16.4724 | 122 | -0.32 | 93 |
IV.T1299.EHZ. | 2021-05-03T17:09:57.56 | 0.3 | undecidable | manual | S | 155 | 16.6722 | 122 | 0.17 | 72 |
IV.MC2.EHZ. | 2021-05-03T17:09:57.38 | 0.6 | undecidable | manual | S | 358 | 15.6732 | 123 | 0.26 | 47 |
IV.RM33.EHZ. | 2021-05-03T17:09:56.48 | 0.1 | undecidable | manual | P | 177 | 28.9488 | 50 | -0.09 | 96 |
IV.GAVE.EHZ. | 2021-05-03T17:09:56.16 | 0.1 | undecidable | manual | P | 251 | 25.9518 | 50 | 0.05 | 97 |
IV.FDMO.HHZ. | 2021-05-03T17:09:56.83 | 0.1 | undecidable | manual | P | 344 | 30.8469 | 50 | -0.03 | 96 |
IV.NRCA.HHZ. | 2021-05-03T17:09:55.14 | 0.3 | undecidable | manual | S | 317 | 9.6792 | 137 | -0.35 | 70 |
IV.T1299.EHZ. | 2021-05-03T17:09:54.74 | 0.3 | undecidable | manual | P | 155 | 16.6722 | 122 | 0.22 | 71 |
IV.MTRA.EHZ. | 2021-05-03T17:09:54.49 | 0.1 | undecidable | manual | P | 95 | 16.4724 | 122 | 0 | 99 |
IV.MC2.EHZ. | 2021-05-03T17:09:54.66 | 0.1 | undecidable | manual | P | 358 | 15.6732 | 123 | 0.3 | 94 |
IV.MMO1.EHZ. | 2021-05-03T17:09:54.75 | 0.1 | undecidable | manual | P | 37 | 17.9709 | 120 | 0.01 | 99 |
IV.NRCA.HHZ. | 2021-05-03T17:09:53.45 | 0.1 | undecidable | manual | P | 317 | 9.6792 | 137 | 0.03 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHN. | ML:1.2 | 0.0002155 | 0.08 | AML | other | m | 2021-05-03T17:09:55.23 |
IV.NRCA.HHE. | ML:1.3 | 0.00023457855 | 0.0768 | AML | other | m | 2021-05-03T17:09:55.35 |
IV.MTRA.EHN. | ML:1.0 | 0.0000877 | 0.32 | AML | other | m | 2021-05-03T17:09:57.62 |
IV.MTRA.EHE. | ML:0.9 | 0.00007744999999999999 | 1.24 | AML | other | m | 2021-05-03T17:09:57.79 |
IV.GAVE.EHN. | ML:0.9 | 0.000045200245 | 0.2816 | AML | other | m | 2021-05-03T17:10:00.84 |
IV.GAVE.EHE. | ML:0.9 | 0.000044464155 | 0.1664 | AML | other | m | 2021-05-03T17:10:00.61 |
IV.NRCA.HNE. | ML:1.4 | 0.0003192756 | 0.2944 | AML | other | m | 2021-05-03T17:09:55.48 |
IV.NRCA.HNN. | ML:1.2 | 0.00020803325 | 0.0768 | AML | other | m | 2021-05-03T17:09:55.27 |
IV.MTRA.HNE. | ML:1.1 | 0.000110753005 | 0.192 | AML | other | m | 2021-05-03T17:09:57.79 |
IV.MTRA.HNN. | ML:1.0 | 0.000097273995 | 0.2176 | AML | other | m | 2021-05-03T17:09:57.72 |
IV.RM33.EHE. | ML:0.5 | 0.000016031195000000003 | 0.1536 | AML | other | m | 2021-05-03T17:10:01.45 |
IV.RM33.EHN. | ML:0.5 | 0.000014898626 | 0.128 | AML | other | m | 2021-05-03T17:10:01.25 |
IV.FDMO.HHE. | ML:0.3 | 0.000008815466 | 0.192 | AML | other | m | 2021-05-03T17:10:01.63 |
IV.FDMO.HHN. | ML:0.3 | 0.000009137224000000002 | 0.1792 | AML | other | m | 2021-05-03T17:10:01.80 |
IV.TERO.HHN. | ML:0.6 | 0.000015299105 | 0.7808 | AML | other | m | 2021-05-03T17:10:03.35 |
IV.TERO.HHE. | ML:0.1 | 0.0000067676105 | 0.0768 | AML | other | m | 2021-05-03T17:10:03.17 |