A magnitude ML 1.2 earthquake occured in region: 4 km SE Monteroni d'Arbia (SI), on
and geographic coordinates (lat, lon) 43.2000, 11.4520 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 |
---|---|---|---|---|
Monteroni d'Arbia | SI | 4 | 9088 | 9088 |
Murlo | SI | 6 | 2389 | 11477 |
Buonconvento | SI | 7 | 3173 | 14650 |
Asciano | SI | 10 | 7118 | 21768 |
San Giovanni d'Asso | SI | 12 | 853 | 22621 |
Montalcino | SI | 16 | 5093 | 27714 |
Rapolano Terme | SI | 16 | 5249 | 32963 |
Siena | SI | 16 | 53903 | 86866 |
Castelnuovo Berardenga | SI | 17 | 9097 | 95963 |
Trequanda | SI | 18 | 1254 | 97217 |
San Quirico d'Orcia | SI | 20 | 2662 | 99879 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.2 | 2023-04-19 01:38:54 |
43.2003 | 11.4525 | 9 | 2023-04-19 02:16:30 |
Sala Sismica INGV-Roma | 116499881 |
Field | Value |
---|---|
Time (UTC) | 2023-04-19 01:38:54 ± 0.15 |
Latitude | 43.2003 ± 0.0072 |
Longitude | 11.4525 ± 0.0123 |
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 | 116499881 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 970 |
Semi-minor axis of confidence ellipse (meter) | 788 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 250 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 970.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 94 |
Number of associated phases, regardless of their use for origin computation | 29 |
Number of defining phases | 24 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.34 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.59355 |
Number of stations at which the event was observed | 18 |
Number of stations from which data was used for origin computation | 13 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 116499881 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-04-19 02:16:30 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CMPR.HHZ. | 2023-04-19T01:40:23.33 | 3.0 | undecidable | manual | Sn | -0.2 | 0 | |||
IV.VTIR.HHZ. | 2023-04-19T01:40:03.77 | 3.0 | undecidable | manual | Sn | 0 | 0 | |||
MN.TRI.HHZ. | 2023-04-19T01:39:40.36 | 3.0 | negative | manual | Pn | 0.87 | 0 | |||
IV.VCEL.EHZ. | 2023-04-19T01:39:33.02 | 3.0 | undecidable | manual | Sg | 0.08 | 0 | |||
IV.VVLD.HHZ. | 2023-04-19T01:39:16.57 | 3.0 | negative | manual | Pg | 0.23 | 0 | |||
IV.CASP.HHZ. | 2023-04-19T01:39:16.17 | 0.6 | undecidable | manual | S | 227 | 65.8896 | 50 | 0.77 | 38 |
IV.MCIV.CHZ. | 2023-04-19T01:39:09.51 | 0.6 | undecidable | manual | S | 159 | 50.2164 | 50 | -1.71 | 24 |
IV.CAFI.HHZ. | 2023-04-19T01:39:09.42 | 0.6 | undecidable | manual | S | 71 | 43.9227 | 50 | -0.12 | 48 |
IV.TRIF.CHZ. | 2023-04-19T01:39:09.01 | 0.6 | undecidable | manual | S | 258 | 45.5211 | 50 | -0.96 | 36 |
IV.OSSC.HHN. | 2023-04-19T01:39:08.43 | 0.6 | undecidable | manual | S | 335 | 39.5271 | 50 | 0.06 | 49 |
IV.CASP.HHZ. | 2023-04-19T01:39:07.53 | 0.6 | undecidable | manual | P | 227 | 65.8896 | 50 | 0.78 | 38 |
IV.CSNT.HHE. | 2023-04-19T01:39:06.24 | 0.6 | undecidable | manual | S | 337 | 32.9448 | 50 | -0.38 | 46 |
IV.MCIV.CHZ. | 2023-04-19T01:39:04.50 | 0.1 | undecidable | manual | P | 159 | 50.2164 | 50 | 0.16 | 94 |
IV.ARCI.HHZ. | 2023-04-19T01:39:03.83 | 0.6 | undecidable | manual | P | 177 | 38.7279 | 50 | 1.26 | 32 |
IV.RIBO.EHE. | 2023-04-19T01:39:03.19 | 0.1 | undecidable | manual | P | 230 | 43.1235 | 50 | -0.06 | 97 |
IV.CAFI.HHZ. | 2023-04-19T01:39:03.73 | 0.6 | undecidable | manual | P | 71 | 43.9227 | 50 | 0.37 | 45 |
IV.TRIF.CHZ. | 2023-04-19T01:39:03.68 | 0.1 | undecidable | manual | P | 258 | 45.5211 | 50 | 0.07 | 96 |
IV.MALA5.EHE. | 2023-04-19T01:39:02.75 | 0.6 | undecidable | manual | S | 174 | 21.5673 | 113 | -0.31 | 48 |
IV.OSSC.HHN. | 2023-04-19T01:39:02.67 | 0.1 | undecidable | manual | P | 335 | 39.5271 | 50 | -0.02 | 98 |
IV.MALA0.EHE. | 2023-04-19T01:39:02.85 | 0.6 | undecidable | manual | S | 175 | 21.6672 | 113 | -0.24 | 48 |
IV.MALA2.EHE. | 2023-04-19T01:39:02.84 | 0.6 | undecidable | manual | S | 175 | 21.9669 | 113 | -0.34 | 47 |
IV.MALA1.EHE. | 2023-04-19T01:39:02.84 | 0.6 | undecidable | manual | S | 175 | 21.867 | 113 | -0.32 | 48 |
IV.MALA4.EHE. | 2023-04-19T01:39:02.95 | 0.6 | undecidable | manual | S | 175 | 21.6672 | 113 | -0.15 | 49 |
IV.CSNT.HHE. | 2023-04-19T01:39:01.46 | 0.1 | undecidable | manual | P | 337 | 32.9448 | 50 | -0.22 | 95 |
IV.MALA4.EHE. | 2023-04-19T01:38:59.77 | 0.1 | undecidable | manual | P | 175 | 21.6672 | 113 | 0.12 | 99 |
IV.MALA5.EHE. | 2023-04-19T01:38:59.72 | 0.1 | undecidable | manual | P | 174 | 21.5673 | 113 | 0.1 | 100 |
IV.MALA0.EHE. | 2023-04-19T01:38:59.75 | 0.1 | undecidable | manual | P | 175 | 21.6672 | 113 | 0.11 | 100 |
IV.MALA2.EHE. | 2023-04-19T01:38:59.78 | 0.1 | undecidable | manual | P | 175 | 21.9669 | 113 | 0.09 | 100 |
IV.MALA1.EHE. | 2023-04-19T01:38:59.80 | 0.1 | undecidable | manual | P | 175 | 21.867 | 113 | 0.12 | 99 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.ARCI.HHN. | ML:1.3 | 0.00006275 | 0.1 | AML | other | m | 2023-04-19T01:39:08.00 |
IV.TRIF.CHN. | ML:1.4 | 0.00007735 | 0.1 | AML | other | m | 2023-04-19T01:39:09.08 |
IV.CAFI.HHE. | ML:0.8 | 0.00001855 | 0.5 | AML | other | m | 2023-04-19T01:39:09.53 |
IV.ARCI.HHE. | ML:1.1 | 0.0000499 | 0.14 | AML | other | m | 2023-04-19T01:39:09.57 |
IV.CAFI.HHN. | ML:1.0 | 0.000027799999999999998 | 0.6 | AML | other | m | 2023-04-19T01:39:09.53 |
IV.TRIF.CHE. | ML:1.4 | 0.00008195 | 0.16 | AML | other | m | 2023-04-19T01:39:10.21 |