A magnitude ML 1.3 earthquake occured in region: 8 km SE Castelsantangelo sul Nera (MC), on
and geographic coordinates (lat, lon) 42.8330, 13.1940 at 14 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 |
---|---|---|---|---|
Castelsantangelo sul Nera | MC | 8 | 281 | 281 |
Norcia | PG | 9 | 4957 | 5238 |
Arquata del Tronto | AP | 11 | 1178 | 6416 |
Montegallo | AP | 12 | 523 | 6939 |
Ussita | MC | 13 | 444 | 7383 |
Montemonaco | AP | 13 | 604 | 7987 |
Preci | PG | 14 | 724 | 8711 |
Visso | MC | 14 | 1107 | 9818 |
Accumoli | RI | 16 | 667 | 10485 |
Montefortino | FM | 17 | 1178 | 11663 |
Bolognola | MC | 18 | 142 | 11805 |
Acquasanta Terme | AP | 19 | 2916 | 14721 |
Cascia | PG | 19 | 3217 | 17938 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.3 | 2021-08-19 01:56:22 |
42.8328 | 13.1938 | 14 | 2021-08-19 02:09:03 |
Sala Sismica INGV-Roma | 94353131 |
Field | Value |
---|---|
Time (UTC) | 2021-08-19 01:56:22 ± 0.11 |
Latitude | 42.8328 ± 0.0036 |
Longitude | 13.1938 ± 0.0061 |
Depth (km) | 14 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 94353131 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 470 |
Semi-minor axis of confidence ellipse (meter) | 74 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 246 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 470.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 118 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 16 |
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) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.36692 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 1.3 |
Uncertainty | 0.4 |
Num. used stations | 7 |
Type of magnitude | ML |
Reference to an origin | 94353131 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-19 02:09:03 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ASSB.HHZ. | 2021-08-19T01:56:39.63 | 3.0 | undecidable | manual | S | 0.07 | 0 | |||
IV.TERO.HHZ. | 2021-08-19T01:56:36.01 | 0.3 | undecidable | manual | S | 125 | 40.7259 | 97 | -0.29 | 67 |
IV.CSP1.EHZ. | 2021-08-19T01:56:33.01 | 0.3 | undecidable | manual | S | 2 | 28.749 | 102 | -0.13 | 70 |
IV.MF5.EHZ. | 2021-08-19T01:56:33.27 | 0.1 | undecidable | manual | S | 51 | 27.6501 | 102 | 0.43 | 88 |
IV.SMA1.EHZ. | 2021-08-19T01:56:32.21 | 0.3 | undecidable | manual | S | 153 | 25.2525 | 104 | -0.02 | 72 |
IV.MNTT.EHZ. | 2021-08-19T01:56:31.43 | 3.0 | negative | manual | P | 0.39 | 0 | |||
IV.FDMO.HHZ. | 2021-08-19T01:56:31.82 | 0.1 | undecidable | manual | S | 339 | 24.1536 | 105 | -0.14 | 93 |
IV.TERO.HHZ. | 2021-08-19T01:56:30.66 | 0.1 | undecidable | manual | P | 125 | 40.7259 | 97 | 0.01 | 94 |
IV.MC2.EHZ. | 2021-08-19T01:56:28.47 | 0.1 | undecidable | manual | S | 357 | 8.6802 | 141 | 0.04 | 100 |
IV.SMA1.EHZ. | 2021-08-19T01:56:28.54 | 0.3 | undecidable | manual | P | 153 | 25.2525 | 104 | 0.25 | 70 |
IV.MMO1.EHZ. | 2021-08-19T01:56:28.79 | 0.3 | undecidable | manual | S | 56 | 13.0758 | 127 | -0.48 | 68 |
IV.CSP1.EHZ. | 2021-08-19T01:56:28.74 | 0.1 | undecidable | manual | P | 2 | 28.749 | 102 | -0.08 | 94 |
IV.MF5.EHZ. | 2021-08-19T01:56:28.96 | 1.0 | negative | manual | P | 51 | 27.6501 | 102 | 0.31 | 23 |
IV.NRCA.HHZ. | 2021-08-19T01:56:28.15 | 0.1 | undecidable | manual | S | 271 | 6.4935 | 150 | 0.05 | 100 |
IV.FDMO.HHZ. | 2021-08-19T01:56:28.08 | 0.1 | undecidable | manual | P | 339 | 24.1536 | 105 | -0.06 | 95 |
IV.NRCA.HHZ. | 2021-08-19T01:56:26.15 | 0.1 | positive | manual | P | 271 | 6.4935 | 150 | 0.24 | 97 |
IV.MC2.EHZ. | 2021-08-19T01:56:26.27 | 1.0 | undecidable | manual | P | 357 | 8.6802 | 141 | 0.17 | 24 |
IV.MMO1.EHZ. | 2021-08-19T01:56:26.47 | 0.1 | undecidable | manual | P | 56 | 13.0758 | 127 | -0.12 | 97 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:1.5 | 0.00034472189999999996 | 0.0608 | AML | other | m | 2021-08-19T01:56:28.44 |
IV.NRCA.HHN. | ML:1.5 | 0.0003768337 | 0.1008 | AML | other | m | 2021-08-19T01:56:28.65 |
IV.NRCA.HNE. | ML:1.6 | 0.00039520800000000003 | 0.1504 | AML | other | m | 2021-08-19T01:56:28.29 |
IV.NRCA.HNN. | ML:1.5 | 0.00033477085 | 0.1104 | AML | other | m | 2021-08-19T01:56:28.70 |
IV.FDMO.HHE. | ML:0.4 | 0.0000128036235 | 0.2592 | AML | other | m | 2021-08-19T01:56:33.13 |
IV.FDMO.HHN. | ML:0.4 | 0.0000128152435 | 0.1008 | AML | other | m | 2021-08-19T01:56:32.50 |
IV.CSP1.EHN. | ML:1.0 | 0.000045157622 | 0.4192 | AML | other | m | 2021-08-19T01:56:34.21 |