A magnitude ML 1.7 earthquake occured in region: 9 km SE Castelsantangelo sul Nera (MC), on
and geographic coordinates (lat, lon) 42.8310, 13.2160 at 14 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 |
---|---|---|---|---|
Castelsantangelo sul Nera | MC | 9 | 281 | 281 |
Arquata del Tronto | AP | 9 | 1178 | 1459 |
Montegallo | AP | 10 | 523 | 1982 |
Norcia | PG | 11 | 4957 | 6939 |
Montemonaco | AP | 12 | 604 | 7543 |
Ussita | MC | 14 | 444 | 7987 |
Visso | MC | 15 | 1107 | 9094 |
Accumoli | RI | 15 | 667 | 9761 |
Preci | PG | 15 | 724 | 10485 |
Montefortino | FM | 16 | 1178 | 11663 |
Acquasanta Terme | AP | 17 | 2916 | 14579 |
Bolognola | MC | 18 | 142 | 14721 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.7 | 2021-08-19 08:06:34 |
42.831 | 13.2157 | 14 | 2021-12-29 11:12:35 |
Bollettino Sismico Italiano INGV | 96321271 |
Reviewed Rev100 |
ML 1.8 | 2021-08-19 08:06:34 |
42.8313 | 13.2187 | 15 | 2021-08-19 08:16:46 |
Sala Sismica INGV-Roma | 94364771 |
Field | Value |
---|---|
Time (UTC) | 2021-08-19 08:06:34 ± 0.11 |
Latitude | 42.8310 ± 0.0045 |
Longitude | 13.2157 ± 0.0074 |
Depth (km) | 14 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 96321271 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 580 |
Semi-minor axis of confidence ellipse (meter) | 330 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 48 |
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) | 146 |
Number of associated phases, regardless of their use for origin computation | 32 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.17 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.35253 |
Number of stations at which the event was observed | 25 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.4 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 94364771 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-19 08:16:46 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.3 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 96321271 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-10-07 14:00:52 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
MN.CLTB.HHZ. | 2021-08-19T08:07:10.89 | 3.0 | positive | manual | Pn | -4.58 | 0 | |||
IV.LRP.EHZ. | 2021-08-19T08:07:03.73 | 3.0 | undecidable | manual | Sn | -1.03 | 0 | |||
GU.MGRO.HHZ. | 2021-08-19T08:06:55.12 | 3.0 | undecidable | manual | Sn | 2.11 | 0 | |||
CR.STON.BHZ. | 2021-08-19T08:06:51.24 | 3.0 | undecidable | manual | Pn | 7.41 | 0 | |||
IV.MML1.EHZ. | 2021-08-19T08:06:47.20 | 0.3 | undecidable | manual | S | 328 | 37.0296 | 97 | -0.02 | 72 |
IV.TERO.HHZ. | 2021-08-19T08:06:47.87 | 0.3 | undecidable | manual | S | 126 | 39.1275 | 96 | 0.09 | 70 |
IV.AGLI.HHZ. | 2021-08-19T08:06:45.11 | 3.0 | undecidable | manual | Pg | 12.82 | 0 | |||
IV.MTRA.EHZ. | 2021-08-19T08:06:42.03 | 0.3 | undecidable | manual | S | 119 | 16.872 | 115 | 0.05 | 74 |
IV.TERO.HHZ. | 2021-08-19T08:06:41.82 | 0.6 | undecidable | manual | P | 126 | 39.1275 | 96 | -0.48 | 44 |
IV.MML1.EHZ. | 2021-08-19T08:06:41.86 | 0.3 | undecidable | manual | P | 328 | 37.0296 | 97 | -0.12 | 71 |
IV.MMO1.EHZ. | 2021-08-19T08:06:40.70 | 0.1 | undecidable | manual | S | 50 | 11.7771 | 129 | -0.12 | 97 |
IV.SARZ.HHZ. | 2021-08-19T08:06:40.14 | 3.0 | undecidable | manual | Sn | 5.21 | 0 | |||
IV.MC2.EHZ. | 2021-08-19T08:06:40.39 | 0.1 | undecidable | manual | S | 346 | 9.1797 | 138 | 0.08 | 100 |
IV.NRCA.HNZ. | 2021-08-19T08:06:39.94 | 0.1 | undecidable | manual | S | 272 | 8.2806 | 142 | -0.21 | 97 |
IV.MTRA.EHZ. | 2021-08-19T08:06:39.01 | 0.1 | undecidable | manual | P | 119 | 16.872 | 115 | 0.05 | 99 |
IV.PAOL.HHZ. | 2021-08-19T08:06:39.93 | 3.0 | undecidable | manual | Pn | 3.79 | 0 | |||
IV.MC2.EHZ. | 2021-08-19T08:06:38.17 | 0.1 | negative | manual | P | 346 | 9.1797 | 138 | 0.18 | 98 |
IV.MMO1.EHZ. | 2021-08-19T08:06:38.36 | 0.1 | undecidable | manual | P | 50 | 11.7771 | 129 | 0.07 | 99 |
IV.NRCA.HNZ. | 2021-08-19T08:06:38.04 | 0.1 | positive | manual | P | 272 | 8.2806 | 142 | 0.14 | 98 |
IV.SENA.HHZ. | 2021-08-19T08:06:36.05 | 3.0 | undecidable | manual | Pn | -3.4 | 0 | |||
IV.CSNT.HHZ. | 2021-08-19T08:06:29.50 | 3.0 | undecidable | manual | Sg | 9.31 | 0 | |||
IV.ZEN8.EHZ. | 2021-08-19T08:06:26.00 | 3.0 | undecidable | manual | Sg | 4.48 | 0 | |||
IV.MBAL.EHZ. | 2021-08-19T08:06:25.37 | 3.0 | undecidable | manual | Sg | 3.63 | 0 | |||
IV.CADC.EHZ. | 2021-08-19T08:06:21.32 | 3.0 | undecidable | manual | Sn | -2.57 | 0 | |||
IV.FIR.HHZ. | 2021-08-19T08:06:15.87 | 3.0 | undecidable | manual | Sn | -0.06 | 0 | |||
GU.MGRO.HHZ. | 2021-08-19T08:06:15.15 | 3.0 | undecidable | manual | Pn | -2.73 | 0 | |||
IV.EUCT.HNZ. | 2021-08-19T08:06:03.67 | 3.0 | negative | manual | Pn | -3.17 | 0 | |||
IV.TREG.HNZ. | 2021-08-19T08:05:59.66 | 3.0 | positive | manual | Pg | 1.5 | 0 | |||
IV.VOBA.EHZ. | 2021-08-19T08:05:55.44 | 3.0 | positive | manual | Pn | -5.64 | 0 | |||
IV.FNVD.HHZ. | 2021-08-19T08:05:55.22 | 3.0 | undecidable | manual | Pn | 0.16 | 0 | |||
IV.OPPE.HHZ. | 2021-08-19T08:05:53.77 | 3.0 | positive | manual | Pn | -2.82 | 0 | |||
IV.NDIM.HNZ. | 2021-08-19T08:05:53.97 | 3.0 | positive | manual | P | -1.32 | 0 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HNE. | ML:1.8 | 0.00072245685 | 0.64 | AML | other | m | 2021-08-19T08:06:40.46 |
IV.NRCA.HHE. | ML:1.9 | 0.0008405 | 0.06 | AML | other | m | 2021-08-19T08:06:40.14 |
IV.NRCA.HHN. | ML:2.0 | 0.0010645989999999998 | 0.7168 | AML | other | m | 2021-08-19T08:06:40.58 |
IV.NRCA.HNN. | ML:1.9 | 0.0009045 | 0.12 | AML | other | m | 2021-08-19T08:06:40.52 |
IV.MTRA.EHN. | ML:1.1 | 0.00009920000000000001 | 0.26 | AML | other | m | 2021-08-19T08:06:42.58 |
IV.MTRA.EHE. | ML:1.1 | 0.000102310045 | 0.1024 | AML | other | m | 2021-08-19T08:06:42.61 |