A magnitude ML 0.8 earthquake occured in region: 4 km W Amatrice (RI), on
and geographic coordinates (lat, lon) 42.6220, 13.2440 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 |
---|---|---|---|---|
Amatrice | RI | 4 | 2657 | 2657 |
Cittareale | RI | 7 | 482 | 3139 |
Accumoli | RI | 8 | 667 | 3806 |
Montereale | AQ | 11 | 2581 | 6387 |
Capitignano | AQ | 12 | 665 | 7052 |
Campotosto | AQ | 13 | 542 | 7594 |
Borbona | RI | 15 | 617 | 8211 |
Posta | RI | 16 | 694 | 8905 |
Arquata del Tronto | AP | 17 | 1178 | 10083 |
Cagnano Amiterno | AQ | 18 | 1369 | 11452 |
Barete | AQ | 19 | 737 | 12189 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2021-10-24 22:56:55 |
42.6223 | 13.2435 | 9 | 2021-10-24 23:06:27 |
Sala Sismica INGV-Roma | 96966021 |
Field | Value |
---|---|
Time (UTC) | 2021-10-24 22:56:55 ± 0.18 |
Latitude | 42.6223 ± 0.0045 |
Longitude | 13.2435 ± 0.0061 |
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 | 96966021 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 466 |
Semi-minor axis of confidence ellipse (meter) | 335 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 355 |
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) | 101 |
Number of associated phases, regardless of their use for origin computation | 14 |
Number of defining phases | 11 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.26530 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.3 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 96966021 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-24 23:06:27 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.FDMO.HHZ. | 2021-10-24T22:57:06.74 | 3.0 | negative | manual | P | 2.52 | 0 | |||
IV.ASSB.HHZ. | 2021-10-24T22:57:06.98 | 3.0 | undecidable | manual | P | -0.19 | 0 | |||
IV.CESI.HHZ. | 2021-10-24T22:57:05.10 | 3.0 | negative | manual | P | 0.52 | 0 | |||
IV.NRCA.HHZ. | 2021-10-24T22:57:04.26 | 0.3 | undecidable | manual | S | 336 | 25.6521 | 109 | -0.25 | 69 |
IV.LNSS.HNE. | 2021-10-24T22:57:02.03 | 0.3 | undecidable | manual | S | 263 | 16.7721 | 118 | 0.38 | 68 |
IV.TERO.HHZ. | 2021-10-24T22:57:01.52 | 0.6 | undecidable | manual | P | 90 | 29.4483 | 107 | 0.28 | 45 |
IV.RM33.EHZ. | 2021-10-24T22:57:00.21 | 0.1 | undecidable | manual | S | 191 | 12.7761 | 124 | -0.27 | 93 |
IV.NRCA.HHZ. | 2021-10-24T22:57:00.36 | 0.3 | negative | manual | P | 336 | 25.6521 | 109 | -0.17 | 70 |
IV.SMA1.EHN. | 2021-10-24T22:56:59.14 | 0.1 | undecidable | manual | S | 83 | 7.5813 | 139 | 0.03 | 99 |
IV.T1299.EHN. | 2021-10-24T22:56:58.36 | 0.1 | undecidable | manual | S | 67 | 3.3966 | 159 | 0 | 100 |
IV.RM33.EHZ. | 2021-10-24T22:56:58.13 | 0.1 | undecidable | manual | P | 191 | 12.7761 | 124 | -0.07 | 97 |
IV.LNSS.HNE. | 2021-10-24T22:56:58.96 | 0.1 | undecidable | manual | P | 263 | 16.7721 | 118 | 0.08 | 96 |
IV.T1299.EHN. | 2021-10-24T22:56:57.08 | 0.3 | undecidable | manual | P | 67 | 3.3966 | 159 | 0.1 | 74 |
IV.SMA1.EHN. | 2021-10-24T22:56:57.51 | 0.3 | undecidable | manual | P | 83 | 7.5813 | 139 | 0.09 | 73 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.CESI.HHN. | ML:1.2 | 0.000045600000000000004 | 0.12 | AML | other | m | 2021-10-24T22:57:06.70 |
IV.CESI.HHE. | ML:1.3 | 0.0000481 | 0.66 | AML | other | m | 2021-10-24T22:57:07.69 |
IV.RM33.EHE. | ML:0.6 | 0.000043893455 | 0.1792 | AML | other | m | 2021-10-24T22:57:01.08 |
IV.RM33.EHN. | ML:0.4 | 0.000029700235 | 0.4864 | AML | other | m | 2021-10-24T22:57:00.52 |
IV.NRCA.HHE. | ML:0.7 | 0.000030760295 | 0.0896 | AML | other | m | 2021-10-24T22:57:04.47 |
IV.NRCA.HHN. | ML:0.6 | 0.000025452839999999997 | 0.1152 | AML | other | m | 2021-10-24T22:57:04.36 |