A magnitude ML 0.9 earthquake occured in region: 4 km NW Accumoli (RI), on
and geographic coordinates (lat, lon) 42.7250, 13.2190 at 9 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 |
---|---|---|---|---|
Accumoli | RI | 4 | 667 | 667 |
Arquata del Tronto | AP | 8 | 1178 | 1845 |
Amatrice | RI | 12 | 2657 | 4502 |
Norcia | PG | 13 | 4957 | 9459 |
Cittareale | RI | 13 | 482 | 9941 |
Montegallo | AP | 16 | 523 | 10464 |
Acquasanta Terme | AP | 16 | 2916 | 13380 |
Cascia | PG | 17 | 3217 | 16597 |
Castelsantangelo sul Nera | MC | 20 | 281 | 16878 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-10-02 10:25:55 |
42.7247 | 13.2187 | 9 | 2021-10-02 10:50:13 |
Sala Sismica INGV-Roma | 96132751 |
Field | Value |
---|---|
Time (UTC) | 2021-10-02 10:25:55 ± 0.09 |
Latitude | 42.7247 ± 0.0027 |
Longitude | 13.2187 ± 0.0122 |
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 | 96132751 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 918 |
Semi-minor axis of confidence ellipse (meter) | 262 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 268 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 920.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 183 |
Number of associated phases, regardless of their use for origin computation | 14 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.15 |
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 | 8 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 5 |
Type of magnitude | ML |
Reference to an origin | 96132751 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-02 10:50:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ARVD.HHZ. | 2021-10-02T10:26:22.28 | 3.0 | undecidable | manual | Sg | -0.17 | 0 | |||
IV.ATMI.HHZ. | 2021-10-02T10:26:11.06 | 3.0 | undecidable | manual | Sn | -7.58 | 0 | |||
IV.CSP1.EHZ. | 2021-10-02T10:26:09.37 | 0.6 | undecidable | manual | S | 358 | 40.7259 | 50 | 0.03 | 48 |
IV.RM33.EHZ. | 2021-10-02T10:26:04.41 | 0.6 | undecidable | manual | S | 181 | 23.9538 | 111 | -0.14 | 48 |
IV.LNSS.HHZ. | 2021-10-02T10:26:03.42 | 0.6 | undecidable | manual | S | 227 | 19.869 | 115 | 0.17 | 48 |
IV.CSP1.EHZ. | 2021-10-02T10:26:03.28 | 1.0 | negative | manual | P | 358 | 40.7259 | 50 | -0.26 | 23 |
IV.MC2.EHZ. | 2021-10-02T10:26:03.85 | 0.6 | undecidable | manual | S | 353 | 20.868 | 114 | 0.29 | 47 |
IV.TERO.HHZ. | 2021-10-02T10:26:02.35 | 3.0 | undecidable | manual | P | -0.28 | 0 | |||
IV.NRCA.HHZ. | 2021-10-02T10:26:01.43 | 0.3 | undecidable | manual | S | 325 | 14.7741 | 122 | -0.27 | 72 |
IV.MC2.EHZ. | 2021-10-02T10:26:00.24 | 0.6 | undecidable | manual | P | 353 | 20.868 | 114 | 0.03 | 50 |
IV.RM33.EHZ. | 2021-10-02T10:26:00.77 | 0.3 | undecidable | manual | P | 181 | 23.9538 | 111 | -0.01 | 74 |
IV.LNSS.HHZ. | 2021-10-02T10:26:00.06 | 0.1 | positive | manual | P | 227 | 19.869 | 115 | 0.03 | 99 |
IV.ARVD.HHZ. | 2021-10-02T10:26:00.13 | 3.0 | undecidable | manual | P | 0.52 | 0 | |||
IV.NRCA.HHZ. | 2021-10-02T10:25:59.18 | 0.1 | negative | manual | P | 325 | 14.7741 | 122 | 0.05 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:1.1 | 0.00013000000000000002 | 0.06 | AML | other | m | 2021-10-02T10:26:01.81 |
IV.NRCA.HHN. | ML:0.8 | 0.00006905 | 0.08 | AML | other | m | 2021-10-02T10:26:02.82 |
IV.LNSS.HHE. | ML:0.7 | 0.00004165000000000001 | 0.86 | AML | other | m | 2021-10-02T10:26:03.61 |
IV.LNSS.HHN. | ML:0.7 | 0.00004124999999999999 | 1.8 | AML | other | m | 2021-10-02T10:26:04.98 |
IV.TERO.HHN. | ML:0.8 | 0.000030355119999999998 | 1.1776 | AML | other | m | 2021-10-02T10:26:07.11 |